Tlist & tree controls - highlight colour

Does anyone know if/how we can influence the colour used to highlight a row in a tree/t-list.
Is it configurable or are we stuck with whatever the colour scheme gives us?
Thanks,
Bren

you can change the color via visual attribute - for the whole item
in the tlist you can't change the colors between the values of the tlist... That's impossible in native Oracle Forms.
Maybe a PJC helps you in that case

Similar Messages

Tree Control Highlighting Programmatically Selected Item

Does anyone know whether it is possible to highlight a programmatically selected item in the LV Tree Control, eg I have used the "Get Child" method to select an item - how do I then highlight this item on the tree?

Yes, you can write the value to a local variable for the tree control. This will have the effect of selecting the item--which will highlight just ike the user clicked on it.
By the way, "Get Child" doesn't select an item in any sort of useful sense--it just tells you what the child is. Actually, it tells you what the first child under the indicated Parent is.
Mike...
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How to highlight all child items in a tree control?

I have a tree control and a boolean button. I want to use the button to select all (highlight) the child items in the tree control. I've seen CVI functions where you can set the active items, but such a function/method does not appear in LabVIEW.
Any clues?

Hi settles,
Once you have all the children, you just need to set the value of the tree control to be an array of all the child tags. Here's a screenshot of a VI that does this:
First I get all the tags, then I get the parent of each tag. If the parent is a non-empty string, I add it to an array. Then I write that array value to a local variable of the tree control. Let me know if you have any questions on this method. I believe the "All Tags" property I'm using was added in LabVIEW 8.0.
-D
Message Edited by Darren on 08-20-2008 10:58 AM
Darren Nattinger, CLA
LabVIEW Artisan and Nugget Penman
Attachments:
select_all_children_in_tree.PNG ‏34 KB

Highlight an activ tree control row

Hi!
I've some problems with a tree control. So I'm not able to selct items during the runtime. In stop mode I can see the blue background color but in run mode I can't see it and also the active tag is an empty tag.
The reason is, that I want to enable the user to delete the parents with all the childs.
Hope that someone can help me.
Best regards Michael
PS: I've attached a vi where you can see the problem, but it is strange that in this example one item is always selected - and it is during runtime always the same item.

The missing attachment
Attachments:
Tree.vi ‏53 KB

Highlighted drop source from tree control?

When a user drop an item or node from one tree to another, is
there a way to detect where the user wants to drop the item/node?
Let's say a tree showing a company structure with different
departments and managers and a list of people under the managers.
Such as:
Company A
L---> R&D
..........L---> Research
..........L---> Development
.......................L---> UI
................................L---> Manager A
.............................................L--->
Personal a1
.............................................L--->
Personal a2
.............................................L--->
Personal a3
.......................L---> Algorithm
................................L---> Manager B
.............................................L--->
Personal b1
.............................................L--->
Personal b2
.............................................L--->
Personal b3
.......................L---> Architecture
................................L---> Manager C
.............................................L--->
Personal c1
.............................................L--->
Personal c2
.............................................L--->
Personal c3
A user can suffle the people under different managers bsed on
the project phases. If Personal c1 & c2 complete their tasks,
they get moved to Manager A to help out the UI. In this case, I
need to know where the c1 & c2 get move to. All personals can
only be a child of Managers. If a user accidently drop them at
category or department level, the move should be ignored. How do I
do this? Is it possible to do this within ONE tree control rather
than two? Please help! Any input is appriciated!

Yes. I am able to check the dragged data. However, I cannot
grab the dropped data to compare and refuse the drop if the rule is
not allowed. If the drag and drop source are the same, it wouldn't
make since to use drag_enter event to check since it is moving a
node in the same tree.

Report with Dynamic tree control

I have a report with a TREE CONTROL.

A Tree is referenced to: CL_GUI_ALV_TREE_SIMPLE and is located on the left side of the screen.

See diagram below. The Tree has MULTI-LEVEL nodes and the user can click on any of the nodes which will
trigger a report (rellevant for that node) to appear in the REPORT container.

Everythign is working fine.

I now have a requirement to add a TREE ON/OFF functionality. I have added this by 'Freeing' TREE
container and by initializing when the user Turns ON the TREE. It is working fine, HOWEVER, when
it initilizes the TREE it is COLLAPSED and obviously does not point to the NODE that was clicked.

My goal is to retain the value of the NODE that was pressed and EXPAND the tree to that node and
highlight it... Please note that I have MULTI-LEVEL nodes and the user can double click on NODES
and ITEMS.

I tried using GET_SELECTED_NODES, but it only works if the user selects the LOWEST level node/item.

Any advise will be appreciated.

Also, as an alternative, I was thinking of resizing TREE container to WIDTH of 1 when the user PRESSES
TREE OFF and resizing back to width 200 when the user presses TREE ON. I could not find any methods
that would work with CL_GUI_DOCKING_CONTAINER.
Please help! Thank you in advance.
 
 
<img src="http://img237.imageshack.us/img237/6684/bdccz3.jpg" border="0"/></a>



I have a report with a TREE CONTROL.

A Tree is referenced to: CL_GUI_ALV_TREE_SIMPLE and is located on the left side of the screen.

See diagram below. The Tree has MULTI-LEVEL nodes and the user can click on any of the nodes which will
trigger a report (rellevant for that node) to appear in the REPORT container.

Everythign is working fine.

I now have a requirement to add a TREE ON/OFF functionality. I have added this by 'Freeing' TREE
container and by initializing when the user Turns ON the TREE. It is working fine, HOWEVER, when
it initilizes the TREE it is COLLAPSED and obviously does not point to the NODE that was clicked.

My goal is to retain the value of the NODE that was pressed and EXPAND the tree to that node and
highlight it... Please note that I have MULTI-LEVEL nodes and the user can double click on NODES
and ITEMS.

I tried using GET_SELECTED_NODES, but it only works if the user selects the LOWEST level node/item.

Any advise will be appreciated.

Also, as an alternative, I was thinking of resizing TREE container to WIDTH of 1 when the user PRESSES
TREE OFF and resizing back to width 200 when the user presses TREE ON. I could not find any methods
that would work with CL_GUI_DOCKING_CONTAINER.
Please help! Thank you in advance.
 
 
<img src="http://img237.imageshack.us/img237/6684/bdccz3.jpg" border="0"/></a>

Tree control: How to disable the selection of a child item

Hello everyone,
Im having trouble with disabling the selection of a child item in a tree control. I dont know if its possible but havent found any answers on this forum regarding this issue.
Example:
Parent tag 1
    child item 1
    child item 2
Parent tag 2
    child item a
    child item b
What i would like to do is being able to select the parent tags but not the child items, because i use the name of the selected item in my program to determine which actions are allowed and those that are not. To avoid this problem i look at the first 4 letters of the name and this way i can determine if it is a parent tag or child item and take appropriate action. Im able to do this because the parent tags have fixed names. But even though nothing happens in software if i select a child item it still lights up, so for the user of the program it looks as if the child items is selected but the program doesnt do anything(because i made it that way). Thats why i want to be able to disable the selection of the child item or at least make the selection colour of the child item transparant so it doesnt look like it is selected.
Can anyone help me with this problem, if there are parts of my question you dont understand, just ask.
greetz
Ynse.

Muks,
your last image disables the whole tree.
To programmatically disables an item use ActiveItem.Disabled? property.
Unfortunately this only has two states, Enabled and disabled (thus grayed).
Ton
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How can I display and change built-in symbols of a tree control programmatically?

I want to set the built-in symbols of a tree control during runtime.
I only found an example to assign custom pictures but not how to select one of the 40 built-in symbol.
Many Thanks
Solved!
Go to Solution.

The ActiveItem.SymbolIndex will allow you to select the symbol for the active item. You can use the ListBox Symbol Ring Constant (Dialog and User Interface palette) to select a symbol (or you can just enter the number directly if you know what it is).
Message Edited by smercurio_fc on 07-10-2008 09:36 AM
Attachments:
Example_VI_BD6.png ‏2 KB

Not able to get the database data into the Tree Control

Hi Everybody,
I have to populate the tree control with nodes and items, which is to be populated from the database, and the tree control is dynamic. I mean, there is a toolbar, whenever a pushbutton is clicked, depending on that the tree contents has to be changed.
If anybody had worked with CL_GUI_COLUMN_TREE control to get the data from database, depending upon the pushbutton selected in Toolbar, please paste the seudocode for it.
Regards,
Abdul,
Intelligroup.
P.S: Helpful answers will be rewarded.

have you seen this demo program
SAPCOLUMN_TREE_CONTROL_DEMO
Regards
Raja

How to get all items under a parent item in a tree control

Hello,
I have 2 questions regarding a tree control:
1) Is there any way to specify a parent item tag and get an array of ALL its sub item tags? For example, in the attached vi, specify the Parent#2 parent tag and get an array containing Item#P21 and Item#P22
2) Is there a way to specify a range to the ActiveCell property. For example, all items from line#1 to line number#3
Any ideas?
Attachments:
Tree example.vi ‏6 KB

Mentos wrote:
1) Is there any way to specify a parent item tag and get an array of ALL its sub item tags? For example, in the attached vi, specify the Parent#2 parent tag and get an array containing Item#P21 and Item#P22
Did you try a search? There's no direct way of doing this. You have to navigate the tree and build up an array. You can find an example here: http://forums.ni.com/t5/LabVIEW/get-all-children-of-a-parent-in-tree/td-p/729548
2) Is there a way to specify a range to the ActiveCell property. For example, all items from line#1 to line number#3
No. (It's called ActiveCell, not ActiveCells) Presumably you are trying to perform an operation on multiple items. Unfortunately, you need to use a loop. You should defer panel updates if you're doing this a lot.

How to binding incoming xml node list to the tree control as dataProvider

Recently, I faced into one issue: I want to binding incoming xml node (it's not avaliable at start) list to the tree control as a dataProvider.
Since the incoming xml node list is not avaliable at beginning but I needs to bind it to the tree, so I create one virtual one in the xml, and prepare to remove it before the tree is shown. (ready for the actual node adding). But It did not work.
Please see the presudo-code here:
1. Model layer(CsModel.as)
public class CsModel
 [Bindable]
 public var treeXML:XML=<nodes><car label="virtualOne" id="1">
 </car></nodes>;
 (Here, I want to build binding relationship on the <car/> node,
 one 'virtual/stub' node is set here with lable="virtualOne".
 But this node will be deleted after IdTree
 control is created completely.)
 [Bindable]
 public var treeData:XMLList =new XMLListCollection(treeXML.car);
2. view layer(treePage.mxml)
 private var _model:CsModel = new CsModel();
 private function addNode():void
 var newNode:XML=<car/>;
 newNode.@label="newOne";
 newNode.@id=1;
 _model.treeXML.appendChild(newNode);
 private function cleanData():void
 delete _model.treeXML.car;
 <mx:VBox height="100%" width="100%">
 <mx:Button label="AddNode" click="addNode()" />
 <mx:Tree id="IdTree" labelField="@label"
 creationComplete="cleanData()"
 dataProvider="{_model}"/>
 </mx:VBox>
3. Top view layer (App.Mxml)
<mx:application>
 <treePage />
</mx:application>
For method: cleanData()，It's expected that when the treePage is shown, we first delete the virutalOne to provide one 'clear' tree since we don't want show virtualOne to the user. The virutalOne node just for building the relationship between treeData and treeXML at beginning. But the side effect of this method, I found, is that the relationship between treeXML and treeData was cut off. And this leads to that when I added new node (by click the 'addNode' button) to the xmlXML, the xmlData was not affected at all !
So Is there any other way to solve this issue or bind the incoming xml node list to the xmlListCollection which will be used as Tree control's dataProvider ?

If u want to display the name : value then u can do like this
<xsl:eval>this.selectSingleNode("name").nodeName</xsl:eval> : <xsl:value-of select="name" />

How can I save the all the values of a tree control ?

I have a problem, in run time, I adds new items on a tree control, but i don´t know how I can save the values of the child text of each item in a file.
Thanks.

I'm no expert on the tree control, but I made a small example to save all items to a textfile, including item tag, item string, and indent level. One drawback of this method is that it fully expands the tree regardless how the user left it. To go the other direction, you'd have to write a routine to go through the text file and programmatically build the tree.
To master the tree control, I think you have to resort to creating a control reference for it and using the Invoke Node to do some operations. For another approach to traversing and operating on a tree, check out the "Traversing Tree Controls and Setting Custom Symbols" (search the NI Developer Zone site).
Best of luck,
John
Attachments:
Save Tree Structure to Textfile.vi ‏32 KB

How can I drag and drop an item from one Tree control to another in LabVIEW 7.1?

You can use the mouse up and down event on the two tree controls but the problem is making the correct selection in the second tree control. I want to be able to switch over to the selection bar of the second tree control so that I can place my item in the correct position. I know all possible workarounds with double-clicks and so on... but I really want a windows drag and drop.
This is what I have for the moment. Please check the library below. I need to activate the selection bar of the second tree control somehow to get the position in the control. The VI below is written in LV 7.1
Attachments:
Drag&Drop.llb ‏65 KB

Hi Jones,
As far as I know this feature is currently not supported by the Tree control. A workaround, would be to use the vertical position of the mouse in the button up event to determine what line you�re dropping the item.
If you would like the Tree control to include the drag and drop feature, please submit this as a Product Suggestion under the feedback at www.ni.com/contact.
Good luck!
Best regards,
Philip C.
Applications Engineer
National Instruments
www.ni.com/ask
- Philip Courtois, Thinkbot Solutions

How to use the drop event of the tree control in LabVIEW 8.20?

Hi,
I am using the two tree controls in my application to provide a option for the user to drag and drop item from one tree to the other. I have to validate the user selection. I tried to capture the user drop event using the event structure. The problem I am facing is, I am not able to drop the item even though i have wired a constant true to the filter(Accepted?) in the event case. I have enable the property(Allow droping) in the right menu of the tree control also.
While configuring an event case for (drop, drag entered and some thing like this) only I am getting the problem otherwise it is working fine.
What do i need to do to caprture the drop event ?
Is there any way to avoid the item duplication while droping a new item in the tree control ?
or how can i do this?
Thanks,
Pandiarajan R

Hi Pandiarajan,
I hope you are doing well today! There is a lengthy discussion on the Tree Control Drag & Drop feature at this forums post including contributions from the developer of the Drag & Drop feature:
Tree Control Drag & Drop in LabVIEW 8
By avoiding item duplication, do you mean that you don't want the same item to be in the old tree control or do you not want more than one item in the new tree control?
Adnan Zafar
Certified LabVIEW Architect
Coleman Technologies

In Pages when I go to FIND how can I change the highlight colour of the found word? At the moment it is a very pale grey and not easily seen.

In Pages when I go to FIND how can I change the highlight colour of the found word? At the moment it is a very pale grey and not easily seen.

Well, it might depend on the nationality of your keyboard, but on my US keyboard, the tilde ("squiggle") is above the TAB key; on a Mac, ⌘-TAB cycles through the active applications and ⌘-tilde cycles through the windows in the front application.
When you do a Find, Pages selects an instance of your search text (the next one after the current selection, I think, but I didn't check that). It doesn't make the document window the front window, though. If you click in the window to bring it to the front, it moves the selection (or insertion point) to wherever you click unless you click on or above the ruler. Try clicking at the top of the document window after you do a find; say somewhere near the document name. Now you should see the highlighted selection (your search text). If you click back on the Find window, the selection will go grey again, unless you hold ⌘ down while clicking.

Tlist & tree controls - highlight colour

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