Tree and TreeNode Objects
It appears that you can't update the label property of a TreeNode object (there
is a getLabel(), but no setLabel()). Is there a reason for this, am I missing
something?
If you have got a solution for your problem please let me know as well.
My requirement is to develop a database driven netui tree control (also embedding a chkbox against each node!)
Thanks & Regards :-D
Similar Messages
-
Dynamic Tree and TreeNode Issue
I am using JSC2 (060120) on Win2K pro, exporting the WAR and running in JBoss 4.0.3 running under JDK 1.5.0_04.
I am trying to dynamically build a tree as the user clicks on nodes and am not having success following the example at http://developers.sun.com/prodtech/javatools/jscreator/learning/tutorials/2/sitemaptree.html
When I attempt to add the child nodes directly to nodes via clickedNode.getChildren().add(myNewNode); I get an error as follows:
10:17:29,260 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception
javax.faces.el.ReferenceSyntaxException: AP-1030Child.id
at com.sun.faces.application.ApplicationImpl.checkSyntax(ApplicationImpl.java:749)
at com.sun.faces.application.ApplicationImpl.createValueBinding(ApplicationImpl.java:291)
The ID shown AP-1030Child.id does not exist, my to be parent node is named AP-1030 and my to be child is named AP-1030-Bottom.
The only way I can get the Tree to build properly is to add the to be child (AP-1030-Bottom) to the Tree itself and then assign it's parent as the node (AP-1030). But, the problem I run into then is the next time the parent node (AP-1030) is clicked parent.getChildCount() or parent.getChildren().size() both evaluate to zero and I attempt to build the children for the node at which point the code blows up due to duplicate naming.
Has anyone else experienced this? Am I doing something wrong?
Here is the code I use to build my tree initially on the SessionBean...
for(int i = 0; i < count; i++)
TreeNode newNode = new TreeNode();
newNode.setId("AP-" + pages.pageId);
newNode.setText(pages[i].page);
newNode.setImageURL("/resources/tree_document.gif");
MethodBinding nodeMethodBinding = this.getApplication().createMethodBinding("#{MainPage.treeNode_action}", null);
newNode.setAction(nodeMethodBinding);
this.applicationPagesTree.getChildren().add(newNode);
Here is the code I am using to add the child nodes to the clicked node...
for(int l = 0; l < locationsCount; l++) {
TreeNode locationNode = new TreeNode();
String sectionText = "";
(populate sectionText with Top|Left|Center|Right|Bottom based on data)
locationNode.setText(sectionText);
// making unique name for this object in the tree: parentname + section
locationNode.setId(searchID + "-" + sectionText);
locationNode.setImageURL("/resources/tree_document.gif");
// bind to method for the page sections click
MethodBinding nodeMethodBinding = this.getApplication().createMethodBinding("#{MainPage.locationNode_action}", null); locationNode.setAction(nodeMethodBinding);
// adding to the base tree object after the parent (why can I just not add to the node?)
this.treeList.getChildren().add(insertIndex + l, locationNode);
// this nudges the node over one, otherwise it is peer to the parent (again, why not just add to the parent?)
locationNode.setParent(node);
Why is it I can get the String ID from the tree and not the object? Wouldn't it make sense to give me the TreeNode instead of it's ID when calling getCookieSelectedTreeNode()? This would seem a more proper object orientated approach.
Any help appreciated, thanks.Thanks,
I have tried pretty much that exact same code and it does not work for some reason. That code is the same as the example I showed that I followed originally.
The only way I can get it to work is as I showed. When I do the node creation and then add to the node in the tree it blows up while rendering with the message from the original post. -
Abap Objects generating List Trees and Grids
Hi Friends,
Please provide me the Information for how to work with ABAP OBJECTS creating(and manipulating)the combination of List Trees and Grids.
Regards,
SowjanyaThere are a couple of examples programs, You can start by checking out transaction DWDM for some of the basic ABAP oo controls. You can also check out any program which begins with BCALV* for examlple of ALV grids, trees, and lists.
REgards,
Rich Heilman -
The truth about objects, references, instances and cloning (Trees and Lists
Hello
As a few of you may have know from my postings over the past few weeks, ive been building my first real java ap and trying to learn along the way, hitting a few snags here and there.
One main snag i seem to have been hitting a fair bit is objects and instances, im kinda learning on how they work and what they mean but as a php programmer it seems to be very different.
as pointed out to me if you have objectA=objectB then in php you have two objects that share the same value but in java you have still one object value and one object pointing to the value.
sooo my first question is
if i have this
Object objA=new Object()
Object objB=objA()then object A creates a new memory allocation for the object data right? and object B is simply a reference to the object A memory allocation right?
so therefore there is no instance of objectB? or is there an instance of object B but it just takes up the same memory allocation as object A?
anyway, what is the point of being able to say objB=objA what can that be used for if not for making a copy of an object (i understand now that it doesnt copy an object)
My second question (which i think i actually understand now, but im posting it to see if the answers may help others)
If i have a List structure (e.g. arraylist) then when i add a datatype such as a treemap does it not add the changed treemap, ill try and explain with code
ArrayList mylist=new ArrayList()
Treemap myTree=new Treemap()
myTree.put("hello","howdy");
myTree.put("bye","cya");
mylist.put(myTree);
System.out.println(mylist.toString());
myTree.put("another","one");
mylist.put(myTree);
System.out.println(mylist.toString());now to be honest ive not actually tried that code and it may actually procude the right results, but from my experience so far that similar sort of thing hasnt been working (by the way i know the above code wont compile as is :p)
anyway what i assume is that will output this
[Hello,howdy,bye,cya] <<this is the first system out
[Hello,howdy,bye,cya,another,one <<this is the second system out
Hello,howdy,bye,cya,another,one] <<this is the second system out
where it should produce this
[Hello,howdy,bye,cya,
Hello,howdy,bye,cya,another,one]
Why when I update the treemap does the arraylist change, is this because the thing that is being put in the array list is infact not an object but simply a reference to an object?
thanks for everyones help so far :)as pointed out to me if you have objectA=objectB then
in php you have two objects that share the same value
but in java you have still one object value and one
object pointing to the value.Some years ago, I built a small website managing data saved in an XML file using PHP. Being used to Java, I used an OO approach and created classes managing data structures and having setter/getter methods. The fact that PHP did actually create a copy of any object being passed as and argument made me crazy. This way, I wasn't able to reach the same instances from several different places in my code. Instead, I had to put a certain operator ("&" I think) before any reference to force PHP not to make a copy but pass the reference. I also found a note on the PHP site saying that copying was faster than passing the reference, which I actually couldn't believe. If I'm not wrong, they changed the default behaviour in PHP5.
if i have this
Object objA=new Object()
Object objB=objA()then object A creates a new memory allocation for the
object data right? and object B is simply a reference
to the object A memory allocation right?The statement "new <Class>" allocates memory. The reference itself just takes up a few bytes in order to maintain some administrative data (such as the memory address). References are basically like pointers in C, though there's no pointer arithmetics and they can't point to any arbitrary place in memory (only a legal instance or null).
so therefore there is no instance of objectB? or is
there an instance of object B but it just takes up
the same memory allocation as object A?There is an instance of objectB, but it's just the same instance that objectA is pointing at. Both references objectA and objectB contain the same memory address. That's why they'd produce a result of "true" if compared using the "==" operator.
anyway, what is the point of being able to say
objB=objA what can that be used for if not for making
a copy of an object (i understand now that it doesnt
copy an object)Sometimes you don't want to make a copy, as 1) it consumes more memory and 2) you'd lose the reference to it (making it more difficult to tell what instance is actually accessed). If there was no way to pass a reference to an object into a method, methods wouldn't be able to affect the original instance.
Why when I update the treemap does the arraylist
change, is this because the thing that is being put
in the array list is infact not an object but simply
a reference to an object?The ArrayList doesn't change at all. It's the instance that's being changed, and the ArrayList has a reference to it. -
Converting XML doc to TreeNode object
Hi,
I am trying to build a Tree in Workshop 8.1 using netui:tree tag (for data in
an XML file).
The BEA docs say that we have to assign the TreeNode object to the 'tree' attribute
in the netui:tree tag.
What is the best way to translate the XML doc into a TreeNode object(s)?
Thanks, AjayHTML to PDF with Java, using OpenOffice.org - example here: [http://www.dancrintea.ro/html-to-pdf/|http://www.dancrintea.ro/html-to-pdf/]
You can use OpenOffice.org, running as a server and command it remotely for document convertion.
Besides HTML to PDF, there are also possible other convertions:
doc --> pdf, html, txt, rtf
xls --> pdf, html, csv
ppt --> pdf, swf
Code example:
import officetools.OfficeFile; // this is my tools package
FileInputStream fis = new FileInputStream(new File("c:/test.html"));
FileOutputStream fos = new FileOutputStream(new File("c:/test.pdf"));
// suppose OpenOffice.org runs on localhost, port 8100
OfficeFile f = new OfficeFile(fis,"localhost","8100", true);
f.convert(fos,"pdf");
----------------------------------------------------------------------------------------------------------------------------------------- -
Tree and Tree Node Components - Threadinar7
Hi All,
This is the seventh in the "Threadinar" series , please see Threadinar6 at
http://forum.sun.com/jive/thread.jspa?threadID=100601 for details
In this Threadinar we will focus on the
"Tree" and "Tree Node" Components
Let us begin our discussion with the Tree Component.
Tree Component
You can drag the Tree component from the Palette's Basic category to the Visual Designer to create a hierarchical tree structure with nodes that can be expanded and collapsed, like the nodes in the Outline window. When the user clicks a node, the row will be highlighted. A tree is often used as a navigation mechanism.
A tree contains Tree Node components, which act like hyperlinks. You can use a Tree Node to navigate to another page by setting its url property. You can also use a Tree Node to submit the current page. If the the Tree Node's action property is bound to an action event handler, selecting the node automatically submits the page. If the Tree Node's actionListener property is bound to an action listener, opening or closing the node automatically submits the page. You set Tree Node properties in the Tree Node Component Properties window.
* If you use this component to navigate between pages of a portlet, do not use the url property to link to a page. Instead, use the Navigation editor to set up your links to pages.
* Events related to tree node selection do not work correctly in portlets because the component uses cookies to pass the selected node id back and forth, and cookies are not correctly handled by the portlet container. You cannot handle tree node selection events in portlet projects.
Initially when you drop a tree on a page, it has one root node labeled Tree and one subnode labeled Tree Node 1. You can add more nodes by dragging them to the tree and dropping them either on the root node to create top level nodes or on existing nodes to create subnodes of those nodes. You can also right-click the Tree or any Tree Node and choose Add Tree Node to add a subnode to the node.
Additionally, you can work with the component in the Outline window, where the component and its child components are available as nodes. You can move a node from level to level easily in the Outline window, so you might want to work there if you are rearranging nodes. You can also add and delete tree nodes in the Outline window, just as in the Visual Designer.
The Tree component has properties that, among other things, enable you change the root node's displayed text, change the appearance of the text, specify if expanding or collapsing a node requires a trip to the server, and specify whether node selection should automatically open or close the tree. To set the Tree's properties, select the Tree component in your page and use the Tree Component Properties window.
The following Tutorial ("Using Tree Component") is very useful to learn using Tree components
http://developers.sun.com/prodtech/javatools/jscreator/learning/tutorials/2/sitemaptree.html
See Also the Technical Article - "Working with the Tree Component and Tree Node Actions"
http://developers.sun.com/prodtech/javatools/jscreator/reference/techart/2/tree_component.html
Tree Node Component
You can drag the Tree Node component from the Palette's Basic category to a Tree component or another tree node in the Visual Designer to create a node in a hierarchical tree structure, similar to the tree you see in the Outline window.
The tree node is created as a subnode of the node on which you drop it. If you drop the node on the tree component itself, a new node is created as a child of the root node. You can see the hierarchical structure clearly in the Outline window, where you can also easily move nodes around and reparent them.
You can also add a tree node either to a Tree component or to a Tree Node component by right-clicking the component and choosing Add Tree Node.
A Tree Node component by default is a container for an image and can be used to navigate to another page, submit the current page, or simply open or close the node if the node has child nodes.
* If you select the Tree Node component's node Tree Node icon in the Outline window, you can edit its properties in the Tree Node Properties window. You can set things like whether or not the Tree Node is expanded by default, the tooltip for the Tree Node, the label for the tree node, and the Tree Node's identifier in your web application.
* You can use a Tree Node to navigate to another page by setting its url property. You can also use a Tree Node to submit the current page. If the the Tree Node's action property is bound to an action event handler, selecting the node automatically submits the page. If the Tree Node's actionListener property is bound to an action listener, opening or closing the node automatically submits the page.
- Note: If you use this component to navigate between pages of a portlet, do not use the url property to link to a page. Instead, use the Navigation editor to set up your links to pages. In addition, events related to tree node selection do not work correctly in portlets because the component uses cookies to pass the selected node id back and forth, and cookies are not correctly handled by the portlet container. You cannot handle tree node selection events in portlet projects.
* If you select the image in the Tree Node, you can see that its icon property is set to TREE_DOCUMENT. If you right-click the image on the page and choose Set Image, you can either change the icon to another one or choose your own image in the Image Customizer dialog box. For more information on working with an image in a tree node, see Image component.
- Note: The image used in a tree node works best if it is 16x16 or smaller. Larger images can work, but might appear overlapped in the Visual Designer. You can right-click the component and choose Preview in Browser feature to check the appearance of the images.
Please share your comments, experiences, additional information, questions, feedback, etc. on these components.
------------------------------------------------------------------------------- --------------------One challenge I had experience was to make the tree
always expanded on all pages (I placed my tree menu
in a page fragment so I can just import it in my
pages).Did you solve this problem. It would be interesting to know what you did.
To expand a node you call setExpanded on the node. Here is some code from a tutorial that a coworker of mine is working on.
In the prerender method:
Integer expandedPersonId = getRequestBean1().getPersonId();
// If expandedPersonId is null, then we are not coming back
// from the Trip page. In that case we do not want any trip
// nodes to be pre-selected (highlighted) due to browser cookies.
if (expandedPersonId==null) {
try {
HttpServletRequest req =(HttpServletRequest)
getExternalContext().getRequest();
Cookie[] cookies = req.getCookies();
//Check if cookies are set
if (cookies != null) {
for (int loop =0; loop < cookies.length; loop++) {
if (cookies[loop].getName().equals
("form1:displayTree-hi")) {
cookies[loop].setMaxAge(0);
HttpServletResponse response =(HttpServletResponse)
getExternalContext().getResponse();
response.addCookie(cookies[loop]);
} catch (Exception e) {
error("Failure trying to clear highlighting of selected node:" +
e.getMessage());
} ... (in a loop for tree nodes)...
personNode.setExpanded(newPersonId.equals
(expandedPersonId));In the action method for the nodes:
// Get the client id of the currently selected tree node
String clientId = displayTree.getCookieSelectedTreeNode();
// Extract component id from the client id
String nodeId = clientId.substring(clientId.lastIndexOf(":")+1);
// Find the tree node component with the given id
TreeNode selectedNode =
(TreeNode) this.getForm1().findComponentById(nodeId);
try {
// Node's id property is composed of "trip" plus the trip id
// Extract the trip id and save it for the next page
Integer tripId = Integer.valueOf(selectedNode.getId().substring(4));
getRequestBean1().setTripId(tripId);
} catch (Exception e) {
error("Can't convert node id to Integer: " +
selectedNode.getId().substring(4));
return null;
It would also be great if I can set the tree
readonly where the user cannot toggle the expand
property of the tree (hope this can be added to the
tree functionality). -
What i use to develop complex tree and table in my web application?
hi guys
simply most of my work in my web application will be depend on:
1-tree
2-table
i need this tree and table deal with database table (or even tables) must be able to do every thing like add node/row/column, delete, update, drag-n-drop, various object nodes/cells like check-box, list, images...etc
i used JTree and JTable then stoped because i faced problems in dealing with applet/database, and i really didnt see this is perfect way to do that even i agree that JTree and JTable are excellent objects. i also start using ajax tree but i didnt see it robust to have all this complicated work with database.
by the way i need also master-detail UI table, but its easy to get this if i have good and flexable table object.
my rest pages developed by jsp, servlet, javascript, html...etc
so any suggestion to how i build this tree and table? i also heared about JSF, is it serve me?
thanksso if the only way to use JTree and JTable,There are other ways, but they're not Java and might be more complicated.
are there
any links you have discussing dealing database with
applet by keep applet away from direct connection to
my database?I'm not aware of links, but it's common sense. You don't want to expose the DB server to the internet, and instead contact a server for authentication that then forwards the request to the DB. -
Store and load objects to XML files using DOM
Hello everybody,
a quick question for all of you.
I'm designing a desktop application which requires a lot of custom objects to be stored into XML files and later reloaded from them. I'm planning to use DOM, creating an interface like this:
public interface StorableAsDom
// Create an object from a DOM tree
static Object createFromDom(org.w3c.dom.Node root) throws InvalidDomException;
// Get the DOM tree for an object
org.w3c.dom.DocumentFragment getDomTree(org.w3c.dom.Document doc) throws DOMException;
Then, every class which needs to be saved should implement the above interface. This way everything works fine.
My question is: do you know any available java package which already provides similar functionalities?
I'd like not to reinvent the wheel if I can; time is always a critical factor.
Thanks in advance to all of you.
Cheers
marcocacoHi,
When I need object -xml binding, I usually have two methods -
one for reading & one for writing (the "VOs" below stands for "Value Objects" [getters/setters & empty constructor only]):
READ: loadXML (= XML2VOs)
1.XML2DOM - this method can be generic
2.DOM2VOs - populate your VOs from the DOM just obtained in 1.
WRITE: saveXML (=VOs2XML)
1.VOs2DOM - create a new DOM document from your VOs' fields.
2.DOM2XML - this method can be generic
It would be nice (but dificult & not very elegant) to make DOM2VOs & VOs2DOM generic. If such methods will be written, they should be combined with the XML2DOM & DOM2XML (resp.) & then you would have two generic methods XML2VOs & VOs2XML... (Alternativelly, you can get Sun's JAXB package which does object-xml binding but this is not part of the JDK 5)
If what I have outlined above sounds like what you want to do, let me know if you want more details (eg. how the DOM2VOs would be implemented etc)... -
Can anyone tell me how to Copy a node on an ALV Tree using context menu ?
Hello Vidya
The sample report ZUS_SDN_ALVTREE_CTXMENU demonstrates how to copy nodes on an ALV tree.
Before showing the entire coding I would like to point out a few crucial parts of the coding:
(1) Defintion of OUTTAB list
TYPES: BEGIN OF ty_s_outtab.
INCLUDE TYPE vbak.
TYPES: nkey TYPE lvc_nkey.
TYPES: ntype TYPE lvc_value. " 'VKORG' / 'VTWEG' / 'SPART' / leaf
TYPES: END OF ty_s_outtab.
TYPES: ty_t_outtab TYPE STANDARD TABLE OF ty_s_outtab
WITH DEFAULT KEY.
The OUTTAB list contains two additional fields holding the tree key (LVC_NKEY) and the node type.
(2) The main logic of the report is implemented in event handler method handle_node_ctxmenu_sel.
WHEN 'COPY_SUBTREE'.
CALL METHOD go_alvtree->get_subtree
EXPORTING
i_node_key = node_key
IMPORTING
et_subtree_nodes = lt_subtree.
CALL METHOD go_alvtree->get_parent
EXPORTING
i_node_key = node_key
IMPORTING
e_parent_node_key = ld_parent_key.
LOOP AT lt_subtree INTO ld_node_key.
READ TABLE gt_outtab INTO ls_outtab
WITH KEY nkey = ld_node_key.
APPEND ls_outtab TO lt_outtab.
ENDLOOP.
READ TABLE lt_outtab INTO ls_outtab INDEX 1.
ld_ntype = ls_outtab-ntype.
DELETE lt_outtab WHERE ( vbeln IS INITIAL ). " hierarchy nodes
CASE ld_ntype.
WHEN 'VKORG'.
ld_top_key = ld_parent_key.
WHEN 'VTWEG'.
ld_vkorg_key = ld_parent_key.
WHEN 'SPART'.
ld_vtweg_key = ld_parent_key.
WHEN 'LEAF'.
ld_spart_key = ld_parent_key.
ENDCASE.
" Note: similar logic like in routine CREATE_HIERARCHY
SORT lt_outtab BY vkorg vtweg spart kunnr audat.
LOOP AT lt_outtab INTO ls_outtab.
*& Report ZUS_SDN_ALVTREE_CTXMENU
*& Based on: BCALV_TREE_03
REPORT zus_sdn_alvtree_ctxmenu.
TYPES: BEGIN OF ty_s_outtab.
INCLUDE TYPE vbak.
TYPES: nkey TYPE lvc_nkey.
TYPES: ntype TYPE lvc_value. " 'VKORG' / 'VTWEG' / 'SPART' / leaf
TYPES: END OF ty_s_outtab.
TYPES: ty_t_outtab TYPE STANDARD TABLE OF ty_s_outtab
WITH DEFAULT KEY.
DATA:
gd_repid TYPE syst-repid,
gd_okcode TYPE ui_func,
go_docking TYPE REF TO cl_gui_docking_container,
go_alvtree TYPE REF TO cl_gui_alv_tree.
DATA:
gt_outtab TYPE ty_t_outtab, " Sales Document
gt_fcat TYPE lvc_t_fcat.
* CLASS lcl_eventhandler DEFINITION
CLASS lcl_eventhandler DEFINITION.
PUBLIC SECTION.
* §2. Define an event handler method to build up a context menu
* (postfix of event name: _CONTEXT_MENU_REQUEST).
* This event is fired each time the user klick with the right
* mouse button on a node.
CLASS-METHODS:
handle_node_ctxmenu_req
FOR EVENT node_context_menu_request OF cl_gui_alv_tree
IMPORTING
node_key
menu,
* §3. Define an event handler method to respond to a function code
* triggered by your menu (postfix: _CONTEXT_MENU_SELECTED).
* This event is fired when the user selects an entry of the
* build up context menu.
handle_node_ctxmenu_sel
FOR EVENT node_context_menu_selected OF cl_gui_alv_tree
IMPORTING
node_key
fcode
sender.
* 'sender' is an implicit event parameter that is provided by
* ABAP Objects runtime system. It contains a reference to the
* object that fired the event. You may directly use it to
* call methods of this instance.
ENDCLASS. "lcl_eventhandler DEFINITION
* CLASS lcl_eventhandler IMPLEMENTATION
CLASS lcl_eventhandler IMPLEMENTATION.
* §4. Implement your event handler methods.
METHOD handle_node_ctxmenu_req.
* Event parameter 'menu' holds a reference to the standard context
* menu of ALV Tree (functions 'Expand'/'Collapse' on nodes).
* You may either append your own functions (separated by a line)
* or clear the menu if you do not want to allow standard functions.
* In this case the standard menu is cleared.
CALL METHOD menu->clear.
* The next line defines one line of the context menu.
CALL METHOD menu->add_function
EXPORTING
fcode = 'DEL_SUBTREE'
text = 'Delete Subtree'(901). "Delete Subtree
CALL METHOD menu->add_function
EXPORTING
fcode = 'COPY_SUBTREE'
text = 'Copy Subtree'(902). "Copy Subtree
ENDMETHOD. "handle_node_ctxmenu_req
METHOD handle_node_ctxmenu_sel.
* At this point of execution, the user selected a menu entry of the
* menu build up in event handler method handle_node_cm_req.
* Query your own function codes and react accordingly.
DATA:
l_rc TYPE c,
ld_ntype TYPE lvc_value,
ld_parent_key TYPE lvc_nkey,
ld_node_key TYPE lvc_nkey,
lt_subtree TYPE lvc_t_nkey,
ls_outtab TYPE ty_s_outtab,
ls_last TYPE ty_s_outtab,
lt_outtab TYPE ty_t_outtab.
DATA:
ld_vkorg_key TYPE lvc_nkey,
ld_vtweg_key TYPE lvc_nkey,
ld_spart_key TYPE lvc_nkey,
ld_last_key TYPE lvc_nkey,
ld_top_key TYPE lvc_nkey.
CASE fcode.
WHEN 'DEL_SUBTREE'.
CALL FUNCTION 'POPUP_TO_CONFIRM_STEP'
EXPORTING
textline1 = 'Do you really want to delete'(902)
textline2 = 'this node and all its subnodes?'(903)
titel = 'Confirmation'(904)
cancel_display = ' '
IMPORTING
answer = l_rc.
IF l_rc EQ 'J'.
CALL METHOD sender->delete_subtree
EXPORTING
i_node_key = node_key.
* Do not forget to refresh the display when you change the contents
* of your list.
CALL METHOD sender->frontend_update.
ENDIF.
WHEN 'COPY_SUBTREE'.
CALL METHOD go_alvtree->get_subtree
EXPORTING
i_node_key = node_key
IMPORTING
et_subtree_nodes = lt_subtree.
CALL METHOD go_alvtree->get_parent
EXPORTING
i_node_key = node_key
IMPORTING
e_parent_node_key = ld_parent_key.
LOOP AT lt_subtree INTO ld_node_key.
READ TABLE gt_outtab INTO ls_outtab
WITH KEY nkey = ld_node_key.
APPEND ls_outtab TO lt_outtab.
ENDLOOP.
READ TABLE lt_outtab INTO ls_outtab INDEX 1.
ld_ntype = ls_outtab-ntype.
DELETE lt_outtab WHERE ( vbeln IS INITIAL ). " hierarchy nodes
CASE ld_ntype.
WHEN 'VKORG'.
ld_top_key = ld_parent_key.
WHEN 'VTWEG'.
ld_vkorg_key = ld_parent_key.
WHEN 'SPART'.
ld_vtweg_key = ld_parent_key.
WHEN 'LEAF'.
ld_spart_key = ld_parent_key.
ENDCASE.
SORT lt_outtab BY vkorg vtweg spart kunnr audat.
LOOP AT lt_outtab INTO ls_outtab.
IF ( ld_ntype = 'VKORG' ).
" new sales organisation
IF ( ls_outtab-vkorg = ls_last-vkorg ).
ELSE.
PERFORM add_sales_org
USING
ls_outtab
ld_top_key
CHANGING
ld_vkorg_key.
ls_outtab-nkey = ld_vkorg_key.
ls_outtab-ntype = 'VKORG'.
DESCRIBE TABLE gt_outtab. " fill sy-tfill
MODIFY gt_outtab FROM ls_outtab INDEX syst-tfill
TRANSPORTING nkey ntype.
ENDIF.
ENDIF.
IF ( ld_ntype = 'VKORG' OR
ld_ntype = 'VTWEG' ).
" new distribution channel
IF ( ls_outtab-vkorg = ls_last-vkorg AND
ls_outtab-vtweg = ls_last-vtweg ).
ELSE.
PERFORM add_distrib_chan
USING
ls_outtab
ld_vkorg_key
CHANGING
ld_vtweg_key.
ls_outtab-nkey = ld_vtweg_key.
ls_outtab-ntype = 'VTWEG'.
DESCRIBE TABLE gt_outtab. " fill sy-tfill
MODIFY gt_outtab FROM ls_outtab INDEX syst-tfill
TRANSPORTING nkey ntype.
ENDIF.
ENDIF.
IF ( ld_ntype = 'VKORG' OR
ld_ntype = 'VTWEG' OR
ld_ntype = 'SPART' ).
" new channel
IF ( ls_outtab-vkorg = ls_last-vkorg AND
ls_outtab-vtweg = ls_last-vtweg AND
ls_outtab-spart = ls_last-spart ).
ELSE.
PERFORM add_division
USING
ls_outtab
ld_vtweg_key
CHANGING
ld_spart_key.
ls_outtab-nkey = ld_spart_key.
ls_outtab-ntype = 'SPART'.
DESCRIBE TABLE gt_outtab. " fill sy-tfill
MODIFY gt_outtab FROM ls_outtab INDEX syst-tfill
TRANSPORTING nkey ntype.
ENDIF.
ENDIF.
* Leaf:
PERFORM add_complete_line
USING
ls_outtab
ld_spart_key
CHANGING
ld_last_key.
ls_outtab-nkey = ld_last_key.
ls_outtab-ntype = 'LEAF'.
DESCRIBE TABLE gt_outtab. " fill sy-tfill
MODIFY gt_outtab FROM ls_outtab INDEX syst-tfill
TRANSPORTING nkey ntype.
ls_last = ls_outtab.
ENDLOOP.
CALL METHOD cl_gui_cfw=>set_new_ok_code
EXPORTING
new_code = 'REFRESH_TREE'
* IMPORTING
* RC =
ENDCASE.
ENDMETHOD. "handle_node_ctxmenu_sel
ENDCLASS. "lcl_eventhandler IMPLEMENTATION
START-OF-SELECTION.
PERFORM init_controls.
* Link the docking container to the target dynpro
gd_repid = syst-repid.
CALL METHOD go_docking->link
EXPORTING
repid = gd_repid
dynnr = '0100'
* CONTAINER =
EXCEPTIONS
OTHERS = 4.
IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
CALL SCREEN '0100'.
* NOTE: no screen elements, ok_code -> gd_okcode
** PROCESS BEFORE OUTPUT.
** MODULE STATUS_0100.
** PROCESS AFTER INPUT.
** MODULE USER_COMMAND_0100.
END-OF-SELECTION.
*& Module STATUS_0100 OUTPUT
* text
MODULE status_0100 OUTPUT.
SET PF-STATUS 'STATUS_0100'.
* SET TITLEBAR 'xxx'.
ENDMODULE. " STATUS_0100 OUTPUT
*& Module USER_COMMAND_0100 INPUT
* text
MODULE user_command_0100 INPUT.
TRANSLATE gd_okcode TO UPPER CASE. " facilitate manual entries
CASE gd_okcode.
WHEN 'BACK' OR
'EXIT' OR
'CANC'.
SET SCREEN 0. LEAVE SCREEN.
when 'REFRESH_TREE'.
CALL METHOD go_alvtree->update_calculations
* EXPORTING
* NO_FRONTEND_UPDATE =
WHEN OTHERS.
ENDCASE.
CLEAR: gd_okcode.
ENDMODULE. " USER_COMMAND_0100 INPUT
*& Form INIT_CONTROLS
* text
* --> p1 text
* <-- p2 text
FORM init_controls .
DATA:
ls_hierarchy_header TYPE treev_hhdr.
* Create docking container
CREATE OBJECT go_docking
EXPORTING
parent = cl_gui_container=>screen0
ratio = 90
EXCEPTIONS
OTHERS = 6.
IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
CALL METHOD go_docking->set_extension
EXPORTING
extension = 99999 " full-size screen
EXCEPTIONS
cntl_error = 1
OTHERS = 2.
IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
* create tree control
CREATE OBJECT go_alvtree
EXPORTING
parent = go_docking
node_selection_mode = cl_gui_column_tree=>node_sel_mode_single
item_selection = ' '
no_html_header = 'X'
no_toolbar = ''
EXCEPTIONS
cntl_error = 1
cntl_system_error = 2
create_error = 3
lifetime_error = 4
illegal_node_selection_mode = 5
failed = 6
illegal_column_name = 7.
IF sy-subrc <> 0.
MESSAGE x208(00) WITH 'ERROR'. "#EC NOTEXT
ENDIF.
PERFORM build_hierarchy_header CHANGING ls_hierarchy_header.
* Hide columns and sum up values initially using the fieldcatalog
PERFORM build_fieldcatalog.
* IMPORTANT: Table 'gt_sflight' must be empty. Do not change this table
* (even after this method call). You can change data of your table
* by calling methods of CL_GUI_ALV_TREE.
* Furthermore, the output table 'gt_outtab' must be global and can
* only be used for one ALV Tree Control.
CALL METHOD go_alvtree->set_table_for_first_display
EXPORTING
is_hierarchy_header = ls_hierarchy_header
CHANGING
it_fieldcatalog = gt_fcat
it_outtab = gt_outtab. "table must be empty !
PERFORM init_tree.
ENDFORM. " INIT_CONTROLS
*& Form INIT_TREE
* text
* --> p1 text
* <-- p2 text
FORM init_tree .
PERFORM create_hierarchy.
PERFORM register_events.
* Update calculations which were initially defined by field DO_SUM
* of the fieldcatalog. (see build_fieldcatalog).
CALL METHOD go_alvtree->update_calculations.
* Send data to frontend.
CALL METHOD go_alvtree->frontend_update.
ENDFORM. " INIT_TREE
*& Form build_hierarchy_header
* text
* <--P_LS_HIERARCHY_HEADER text
FORM build_hierarchy_header
CHANGING
cs_hierarchy_header TYPE treev_hhdr.
cs_hierarchy_header-heading =
'SalesOrg/DistChannel/Division'(300).
cs_hierarchy_header-tooltip = 'Customer: Master Sales Data'(400).
cs_hierarchy_header-width = 45.
cs_hierarchy_header-width_pix = ''.
ENDFORM. " build_hierarchy_header
*& Form build_fieldcatalog
* text
* --> p1 text
* <-- p2 text
FORM build_fieldcatalog .
* define local data
DATA:
ls_fcat TYPE lvc_s_fcat.
REFRESH: gt_fcat.
CALL FUNCTION 'LVC_FIELDCATALOG_MERGE'
EXPORTING
* I_BUFFER_ACTIVE =
i_structure_name = 'VBAK'
* I_CLIENT_NEVER_DISPLAY = 'X'
* I_BYPASSING_BUFFER =
* I_INTERNAL_TABNAME =
CHANGING
ct_fieldcat = gt_fcat
EXCEPTIONS
inconsistent_interface = 1
program_error = 2
OTHERS = 3.
IF sy-subrc <> 0.
* MESSAGE ID SY-MSGID TYPE SY-MSGTY NUMBER SY-MSGNO
* WITH SY-MSGV1 SY-MSGV2 SY-MSGV3 SY-MSGV4.
ENDIF.
LOOP AT gt_fcat INTO ls_fcat.
CASE ls_fcat-fieldname.
WHEN 'VBELN' OR
'AUDAT' OR
'AUART' OR
'WAERK' OR
'VKORG' OR
'VTWEG' OR
'SPART' OR
'BSTNK' OR
'KUNNR'.
WHEN 'NETWR'.
ls_fcat-do_sum = 'X'.
ls_fcat-h_ftype = 'SUM'. " or: 'MAX' / 'AVG'
WHEN OTHERS.
ls_fcat-tech = 'X'.
ENDCASE.
MODIFY gt_fcat FROM ls_fcat INDEX syst-tabix.
ENDLOOP.
ENDFORM. " build_fieldcatalog
*& Form create_hierarchy
* text
* --> p1 text
* <-- p2 text
FORM create_hierarchy .
* define local data
DATA:
ls_outtab TYPE ty_s_outtab,
ls_last TYPE ty_s_outtab,
lt_outtab TYPE ty_t_outtab.
DATA:
ld_vkorg_key TYPE lvc_nkey,
ld_vtweg_key TYPE lvc_nkey,
ld_spart_key TYPE lvc_nkey,
ld_last_key TYPE lvc_nkey,
ld_top_key TYPE lvc_nkey.
" Select data
SELECT * FROM vbak INTO CORRESPONDING FIELDS OF TABLE lt_outtab
UP TO 1550 ROWS.
" sort table according to conceived hierarchy
SORT lt_outtab BY vkorg vtweg spart kunnr audat.
* Define one top node. In this way it is possible to calculate
* values for the whole hierarchy.
CALL METHOD go_alvtree->add_node
EXPORTING
i_relat_node_key = ''
i_relationship = cl_gui_column_tree=>relat_last_child
i_node_text = 'Sales Documents'
IMPORTING
e_new_node_key = ld_top_key.
CLEAR: ls_outtab.
ls_outtab-nkey = ld_top_key.
ls_outtab-ntype = 'ROOT'.
MODIFY gt_outtab FROM ls_outtab INDEX 1
TRANSPORTING nkey ntype.
LOOP AT lt_outtab INTO ls_outtab.
" new sales organisation
IF ( ls_outtab-vkorg = ls_last-vkorg ).
ELSE.
PERFORM add_sales_org
USING
ls_outtab
ld_top_key
CHANGING
ld_vkorg_key.
ls_outtab-nkey = ld_vkorg_key.
ls_outtab-ntype = 'VKORG'.
DESCRIBE TABLE gt_outtab. " fill sy-tfill
MODIFY gt_outtab FROM ls_outtab INDEX syst-tfill
TRANSPORTING nkey ntype.
ENDIF.
" new distribution channel
IF ( ls_outtab-vkorg = ls_last-vkorg AND
ls_outtab-vtweg = ls_last-vtweg ).
ELSE.
PERFORM add_distrib_chan
USING
ls_outtab
ld_vkorg_key
CHANGING
ld_vtweg_key.
ls_outtab-nkey = ld_vtweg_key.
ls_outtab-ntype = 'VTWEG'.
DESCRIBE TABLE gt_outtab. " fill sy-tfill
MODIFY gt_outtab FROM ls_outtab INDEX syst-tfill
TRANSPORTING nkey ntype.
ENDIF.
" new channel
IF ( ls_outtab-vkorg = ls_last-vkorg AND
ls_outtab-vtweg = ls_last-vtweg AND
ls_outtab-spart = ls_last-spart ).
ELSE.
PERFORM add_division
USING
ls_outtab
ld_vtweg_key
CHANGING
ld_spart_key.
ls_outtab-nkey = ld_spart_key.
ls_outtab-ntype = 'SPART'.
DESCRIBE TABLE gt_outtab. " fill sy-tfill
MODIFY gt_outtab FROM ls_outtab INDEX syst-tfill
TRANSPORTING nkey ntype.
ENDIF.
* Leaf:
PERFORM add_complete_line
USING
ls_outtab
ld_spart_key
CHANGING
ld_last_key.
ls_outtab-nkey = ld_last_key.
ls_outtab-ntype = 'LEAF'.
DESCRIBE TABLE gt_outtab. " fill sy-tfill
MODIFY gt_outtab FROM ls_outtab INDEX syst-tfill
TRANSPORTING nkey ntype.
ls_last = ls_outtab.
ENDLOOP.
ENDFORM. " create_hierarchy
*& Form ADD_SALES_ORG
* text
* -->P_LS_OUTTAB text
* -->P_LD_TOP_KEY text
* <--P_LD_VKORG_KEY text
FORM add_sales_org
USING
value(us_outtab) TYPE ty_s_outtab
value(ud_relat_key) TYPE lvc_nkey
CHANGING
cd_node_key TYPE lvc_nkey.
* define local data
DATA:
ld_nodetext TYPE lvc_value,
ls_outtab TYPE ty_s_outtab.
ld_nodetext = us_outtab-vkorg.
" add node
CALL METHOD go_alvtree->add_node
EXPORTING
i_relat_node_key = ud_relat_key
i_relationship = cl_gui_column_tree=>relat_last_child
i_node_text = ld_nodetext
is_outtab_line = ls_outtab
IMPORTING
e_new_node_key = cd_node_key.
ENDFORM. " ADD_SALES_ORG
*& Form add_DISTRIB_CHAN
* text
* -->P_LS_OUTTAB text
* -->P_LD_VKORG_KEY text
* <--P_LD_VTWEG_KEY text
FORM add_distrib_chan
USING
value(us_outtab) TYPE ty_s_outtab
value(ud_relat_key) TYPE lvc_nkey
CHANGING
cd_node_key TYPE lvc_nkey.
* define local data
DATA:
ld_nodetext TYPE lvc_value,
ls_outtab TYPE ty_s_outtab.
ld_nodetext = us_outtab-vtweg.
" add node
CALL METHOD go_alvtree->add_node
EXPORTING
i_relat_node_key = ud_relat_key
i_relationship = cl_gui_column_tree=>relat_last_child
i_node_text = ld_nodetext
is_outtab_line = ls_outtab
IMPORTING
e_new_node_key = cd_node_key.
ENDFORM. " add_DISTRIB_CHAN
*& Form add_division
* text
* -->P_LS_OUTTAB text
* -->P_LD_VTWEG_KEY text
* <--P_LD_SPART_KEY text
FORM add_division
USING
value(us_outtab) TYPE ty_s_outtab
value(ud_relat_key) TYPE lvc_nkey
CHANGING
cd_node_key TYPE lvc_nkey.
* define local data
DATA:
ld_nodetext TYPE lvc_value,
ls_outtab TYPE ty_s_outtab.
ld_nodetext = us_outtab-spart.
" add node
CALL METHOD go_alvtree->add_node
EXPORTING
i_relat_node_key = ud_relat_key
i_relationship = cl_gui_column_tree=>relat_last_child
i_node_text = ld_nodetext
is_outtab_line = ls_outtab
IMPORTING
e_new_node_key = cd_node_key.
ENDFORM. " add_division
*& Form add_complete_line
* text
* -->P_LS_OUTTAB text
* -->P_LD_SPART_KEY text
* <--P_LD_LAST_KEY text
FORM add_complete_line
USING
value(us_outtab) TYPE ty_s_outtab
value(ud_relat_key) TYPE lvc_nkey
CHANGING
cd_node_key TYPE lvc_nkey.
* define local data
DATA:
ld_nodetext TYPE lvc_value,
ls_outtab TYPE ty_s_outtab.
WRITE us_outtab-kunnr TO ld_nodetext+0 NO-ZERO.
WRITE us_outtab-audat TO ld_nodetext+20 DD/MM/YYYY.
CONDENSE ld_nodetext.
" add node
CALL METHOD go_alvtree->add_node
EXPORTING
i_relat_node_key = ud_relat_key
i_relationship = cl_gui_column_tree=>relat_last_child
i_node_text = ld_nodetext
is_outtab_line = us_outtab " !!!
IMPORTING
e_new_node_key = cd_node_key.
ENDFORM. " add_complete_line
*& Form register_events
* text
* --> p1 text
* <-- p2 text
FORM register_events .
DATA:
lt_events TYPE cntl_simple_events,
ls_event TYPE cntl_simple_event.
* The following four tree events registers ALV Tree in the constructor
* method itself.
* - cl_gui_column_tree=>eventid_expand_no_children
* (needed to load data to frontend when a user expands a node)
* - cl_gui_column_tree=>eventid_header_context_men_req
* (needed for header context menu)
* - cl_gui_column_tree=>eventid_header_click
* (allows selection of columns (only when item selection activated))
* - cl_gui_column_tree=>eventid_item_keypress
* (needed for F1-Help (only when item selection activated))
* Nevertheless you have to provide their IDs again if you register
* additional events with SET_REGISTERED_EVENTS (see below).
* To do so, call first method GET_REGISTERED_EVENTS (this way,
* all already registered events remain registered, even your own):
CALL METHOD go_alvtree->get_registered_events
IMPORTING
events = lt_events.
* (If you do not these events will be deregistered!!!).
* You do not have to register events of the toolbar again.
* Register additional events for your own purposes:
* §5. Register first context menu event on frontend (with postfix
* (_REQUEST). The second is registered automatically.
ls_event-eventid = cl_gui_column_tree=>eventid_node_context_menu_req.
APPEND ls_event TO lt_events.
* register events on frontend
CALL METHOD go_alvtree->set_registered_events
EXPORTING
events = lt_events
EXCEPTIONS
cntl_error = 1
cntl_system_error = 2
illegal_event_combination = 3.
IF sy-subrc <> 0.
MESSAGE x208(00) WITH 'ERROR'. "#EC NOTEXT
ENDIF.
* §6. Register both context menu events on backend (ABAP Objects
* event handling).
SET HANDLER:
lcl_eventhandler=>handle_node_ctxmenu_req FOR go_alvtree,
lcl_eventhandler=>handle_node_ctxmenu_sel FOR go_alvtree.
ENDFORM. " register_events
Regards,
Uwe -
Major tree and display issue.........
Hi guys! I am having a problem whereby when I click on a tree node(Folder), I want all the images contained in that folder to be displayed on a JPanel which I created. By the way, the tree and panel are added to a splitpane. Tree on the right, and panel on the left. I will really appreciate it if someone can assist. Thanks a lot in advance!!
Cheers,
BoloHi,
You see this demo, it displays all the images of a selected folder in the tree in the right panel. You can customize the layout of the right panel to suit your need.
Regards,
Pratap
import java.awt.*;
import java.io.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.filechooser.*;
import javax.swing.tree.*;
public class Frame1 extends JFrame implements TreeSelectionListener {
JSplitPane jSplitPane1 = new JSplitPane();
JScrollPane jScrollPane1 = new JScrollPane();
JScrollPane jScrollPane2 = new JScrollPane();
JTree tree = new JTree();
JPanel panel = new JPanel();
String dir = "d://images/";
private static final FileSystemView fsv = FileSystemView.getFileSystemView();
FlowLayout flowLayout1 = new FlowLayout();
public Frame1() {
try {
jbInit();
tree.setModel(new FileTreeModel(dir));
tree.setCellRenderer(new FileCellRenderer());
tree.addTreeSelectionListener(this);
catch(Exception e) {
e.printStackTrace();
public void valueChanged(TreeSelectionEvent e) {
panel.removeAll();
if (e.getNewLeadSelectionPath() == null){
panel.repaint();
return;
File node = (File)e.getNewLeadSelectionPath().getLastPathComponent();
if (node.isFile()) {
panel.repaint();
return;
File []images = node.listFiles();
try {
for (int i = 0; i < images.length; i++) {
String name = images.getName();
boolean image = name.endsWith(".gif") || name.endsWith(".jpg") || name.endsWith(".png");
if (!image) continue;
ImageIcon icon = new ImageIcon(images[i].toURL());
panel.add(new JLabel(icon));
panel.revalidate();
catch (Exception ex) {
ex.printStackTrace();
public static void main(String[] args) {
Frame1 f = new Frame1();
f.setSize(400,300);
f.setLocation(200,200);
f.show();
private void jbInit() throws Exception {
panel.setBackground(Color.white);
panel.setLayout(flowLayout1);
flowLayout1.setAlignment(FlowLayout.LEFT);
this.getContentPane().add(jSplitPane1, BorderLayout.CENTER);
jSplitPane1.add(jScrollPane1, JSplitPane.LEFT);
jScrollPane1.getViewport().add(tree, null);
jSplitPane1.add(jScrollPane2, JSplitPane.RIGHT);
jScrollPane2.getViewport().add(panel, null);
public class FileTreeModel extends DefaultTreeModel {
File root;
FileTreeModel(String dir) {
super(null);
root = new File(dir);
public Object getChild(Object parent, int index){
File p = (File)parent;
return p.listFiles()[index];
public int getChildCount(Object parent) {
File p = (File)parent;
return p.listFiles().length;
public int getIndexOfChild(Object parent, Object child) {
File f [] = ((File)parent).listFiles();
for (int i = 0; i < f.length; i++) {
if (f[i] == child) return i;
return 0;
public Object getRoot() {
return root;
public boolean isLeaf(Object node){
return ((File)node).isFile();
public class FileCellRenderer extends DefaultTreeCellRenderer {
public Component getTreeCellRendererComponent(JTree tree,
Object value,
boolean selected,
boolean expanded,
boolean leaf,
int row,
boolean hasFocus) {
super.getTreeCellRendererComponent(tree, value,selected, expanded, leaf, row, hasFocus);
File f = (File)value;
setIcon(fsv.getSystemIcon(f));
setText(f.getName());
return this; -
Netui:tree and portal problem?
I may have found a problem regarding using netui:tree & netui:treenode tags in
a pageflow when that pageflow is placed in a portlet in a portal.
The problem is that expanding and contracting the nodes does not
work in this case....(it does work when the pageflow is NOT placed in a portal.)
I have drilled down on this a bit to see what was happening. Here are my impressions.
This line of code (taken from the page flow taken from the supplied tree tutorial):
[nodeExpanded = getRequest().getParameter(TreeNode.EXPAND_NODE);]
is used to get a refence to the node that was clicked
The constant
[TreeNode.EXPAND_NODE]
equates to the string "netui_treenode".
In the working case (outside of the portal) this parameter and its value
are received in the request passed to the page flow. (and can be used to
change the state of the tree node).
But when running the tree pageflow in the portal (does not work), this parameter
does not exist in the request received by the page flow.
If you examine the html of the tree while running in the portlet and search for
the
string "netui_treenode", you will find that the urls for the node expansion contain
this
parameter (as they should) ....but for some reason this parameter and its value
never get
through the page flow method.
This is the cause of the problem.
Any ideas?This issue is fixed in 8.1 sp3, or if you need a patch for 8.1 sp2, contact support
and ask for the patch for CR129990.
-tanya
"gerry rodman" <[email protected]> wrote:
>
I may have found a problem regarding using netui:tree & netui:treenode
tags in
a pageflow when that pageflow is placed in a portlet in a portal.
The problem is that expanding and contracting the nodes does not
work in this case....(it does work when the pageflow is NOT placed in
a portal.)
I have drilled down on this a bit to see what was happening. Here are
my impressions.
This line of code (taken from the page flow taken from the supplied tree
tutorial):
[nodeExpanded = getRequest().getParameter(TreeNode.EXPAND_NODE);]
is used to get a refence to the node that was clicked
The constant
[TreeNode.EXPAND_NODE]
equates to the string "netui_treenode".
In the working case (outside of the portal) this parameter and its value
are received in the request passed to the page flow. (and can be used
to
change the state of the tree node).
But when running the tree pageflow in the portal (does not work), this
parameter
does not exist in the request received by the page flow.
If you examine the html of the tree while running in the portlet and
search for
the
string "netui_treenode", you will find that the urls for the node expansion
contain
this
parameter (as they should) ....but for some reason this parameter and
its value
never get
through the page flow method.
This is the cause of the problem.
Any ideas? -
Trees and Unmanaged Dropdown Lists
Does anybody know if it's possible to create heirarchical property value lists? For example, we want to have a keyword system for documents and users with some top-level categories and then some more specific categories under them, and not just one long unorganized list. Is this possible to do using trees and/or unmanaged dropdown lists? I'm not sure how to make these. Do you have to insert a table into SQL server somewhere?
Yes, you can do this. I don't have the benefit of access to my database from where I am at the moment, so please pardon me if I get some of this wrong.
* There's a sample table in your primary portal database called something like "samplepicklist" - that will show you the data structure
* You create a tree property
* Bind that property to the table...
In my case I'm using it to provide a region/country hierarchy list for user info.
1) Property is named "Country (by Region)"
2) Set values to...
- Property is visible in the UI (checked)
- Searchable (checked)
- Type is "Tree" (when you select this the screen will change)
3) got a view together - view is called "vw_PTProfile_RegionCountries". Set the Database Table Name setting to the name of your view or table.
4) Provide your hierarchy info. There are two bits - display/storage value name and ordering key. In my case my values look like...
PICK COLUMN SORT ORDER
rgn_descr rgn_id
country_descr country_id
Blammo - done. I now have a hierarchical region/country list.
NOTES:
* I'd suggest using a view so you can link to other data sources, etc. and not worry as much about shaping the data the way the portal needs it
* The property works on most classes of objects EXCEPT documents. This isn't an issue with the property as much as the document property editing approach ("documents are special objects")
That help?
I love these kinds of things and want to make best use of them myself, so if anyone has any ideas on how to kick the portal into overdrive using properties (or sees that I'm mis-using this approach or steered Dave in the wrong direction) please, please do respond to this thread.
Thanks,
Eric -
Help or tutorials about ABAP UI programming such as Tree and dock container
Hi,
I'm looking for help, tutorials or any ressources I can explore to undertsand how to work in ABAP with controls, containers, tree and so on.
Each time I do a search on help.sap.com, I found help on a detailed object such as tree or docking container but I never found a global view. I would like to understand the big picture, have an averview of all involved concept. For example, if I want the user screen to be splitted in 2 parts, one that will display a tree, the other one that will display "simple" screen painter trees that will change depending on what user choose using the tree on the left. How do I need to proceed ?
I'm sorry if I have not a more precise question because I don't found where to begin.
Thanks for help
Regards
MorganHi Morgan,
You can start going thorugh the concepts from help.sap.com. Have a look at the following link:
http://help.sap.com/erp2005_ehp_04/helpdata/EN/1b/337930a63011d2bd6b080009b4534c/frameset.htm
You will get the entire set of Example codes in the Transaction Code : ABAPDOCU.
You can also look for examples for Dialog Programing in SE38 using the DEMODYNPRO*.
Have a look at the Package : SLIS. This is a one point of all examples and demo of SAP Control Framework and ALV Functionality.
Hope this helps.
Thanks,
Samantak. -
I need an ADF tree for a hierarchical folder structure with objects of different types at the leaf level. I have a self referential table for the folder structure and tables for other leaf level objects with foreign key to folder. I was thinking of populating an ADF CoreTree programatically with several views for the folder and other objects. Is there a better way?
PranabShay, thanks for the quick reply
That is exactly what I have done.
However my problem lies in the structure of objects.
eg. Country has a States Iterator and 5 other attributes.
I have to display these 5 attributes as leaf nodes and the States as the next level.
+Country*
<ul><li>Attribute 1 Label - Value</li>
<li>Attribute 2 Label - Value</li>
<li>Attribute 3 Label - Value</li>
<li>Attribute 4 Label - Value</li>
<li>Attribute 5 Label - Value</li>
<li>+ States
<ul><li>Attribute 11 Label - Value</li>
<li>Attribute 12 Label - Value</li>
</ul>
</li>
</ul>
Through the tree binding editor if I select all "Available attributes" to "Display attributes" then I get them all in one level
+Country Attribute 1 Value Attribute 2 Value Attribute 3 Value Attribute 4 Value Attribute 5 Value*
I need to display them as leaf nodes
Any idea how this can be done ?? -
Workshop tree and Field tree have become undocked
Hi All ,
I have 11.5 and have somehow undocked my Workshop tree
and Field tree in the Formula Editor. Now all my reports are that way !
Is there a reset button or something ?
I couldn't find anything in the Crystal environment
for something as simple as redocking a window.
Help
Thanks,
JImmyHi Jimmy,
There is a registry key that can reset the toolbars and dock them back.
Before you edit the registry, please back it up and make sure u2018Allow Dockingu2019 is selected for the particular tree that is not docked. Just right-click the blank area of the floating tree and check if u2018Allow Dockingu2019 is selected.
Go to start > run > regedit.
Browse through HKEY_CURRENT_USER > Software > Business Objects > Suite 11.5 > Crystal Reports > Formula Workshop.
Under this, the keys ToolBar-Bar1 to ToolBar-Bar3 are for each of the three trees. Depending on which one of them is undocked, click on the correct ToolBar-Bar1/2/3 keys. If you click on one of these keys, there should be a value on the right called u2018WindowNameu2019; this will show what tree the current key belongs to.
Once you select the right ToolBar key, on the right side look for u2018DockingStyleu2019 and set it to u2018f000u2019. Also look for u2018MRUFloatStyleu2019 and set it to u20180u2019.
Restart CR and open the Formula Workshop, the tree would still be undocked. To Dock it, just double-click the tree.
Hope this helps!
-Abhilash
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