How to distinguish individual rows in a view?

As well known, we can use rowid to distinguish individual rows in a table. However, who know how to distinguish individual rows in a view? For there are not rowid in a view.

I'm not sure I usnderstand your question, or at least I hope I don't.
We do not use ROWID to distinguish rows in a table: we use unique iodentifiers, that is primary keys. A primary key is stable across the lifetime of a record: a rowid is guaranteed only for the lifetime of a transaction, and then only if we have locked that row.
From this it follows, we should so design our views that each row in the view has a column, or combination of columns, that uniquely identify it.
Cheers, APC

Similar Messages

How to "discard" a row from a view

It seems to me like a simple thing, but I can't find an answer:
I want to programmatically remove a row from an executed view's rowset, but I don't want the underlying entities removed?
[I don't want any pending updates to the entities affected either. It's basically a UI thing - the user does something and I want to make the current row vanish. I don't need or want to re-execute or alter the database as a result of this particular removal.]
Anyone know of a vo.removeRowWithoutAffectingEntities method?
Thanks,
Mike.

Found an old thread myself.
How to remove a row from a rowset
Will have to give this "hack" a try, I guess. (Sung, has this API been introduced into an unreleased version yet?)
I had already tried overriding the updateable-entities' remove methods (which are called from row.remove()), but it seems that the view-row hangs around if the entities aren't actually removed. Found some "removeEntityReferences (i.e. set them to null)" method on a QueryCollection and was wondering if calling that followed by a row.remove() might do the trick, but the method's protected anyway. Might still see if I can call it somehow. Any comments on the viability of this, Sung? (Given that the previous work-around was "uncharted territory"....)
Anyway, I guess I'll give the original work-around a shot. (Or make application non-ideally commit and requery!)
Mike.

How to Insert the row in the View object

I want to insert the row in the view object by instantiating Impl.java file
Could someone please let me know how to insert the blank row
Thanks

Inserting onto a view object should be done the following way:
//vo is your view object
Row aRow = vo.createRow();
//Set your attributes
aRow.setAttribute("AttributeName", objectValue);
//insert
vo.insertRow(aRow);
That should work for you if you are programming the input. If you are using java components bound to columns in a view object then the input should be done automatically for you when you commit.

How to delete certain rows from Table view

Hi Experts,
I need to display result on the basis of certain process type. So i have used code like below.
       lv_iterator =   me->typed_context->searchresult->collection_wrapper->get_iterator( ).
       lv_entity = lv_iterator->get_first( ).
       WHILE lv_entity IS BOUND.
         CLEAR:lv_object.
         lv_object = lv_entity->get_property_as_string( iv_attr_name = 'PROCESS_TYPE' ).
         IF lv_object <> 'XXX'.
           lr_entity ?= lv_entity.
          me->typed_context->searchresult->collection_wrapper->remove( lv_entity ).
          lr_entity->delete( ).
         ENDIF.
         lv_entity = lv_iterator->get_next( ).
       ENDWHILE.
But only some of the entities from the collection are getting removed. Still some wrong entities exists which i cant even able to delete it by using ,
          me->typed_context->searchresult->collection_wrapper->remove( lv_entity ).
          lr_entity->delete( ).
Am i missing anything here?
Regards,
Santhosh

Hi Santhosh,
Maybe that is happening because you're removing elements from an object (collection_wrapper) inside your loop.
Can you try to create an collection wrapper copy by using GET_COPY method, and then use and loop the iterator on your copied object, and remove the unwanted entities on your main object?
Kind regards,
Garcia

How to Delete certain rows from table view collection

Hi Experts,
I need to display result on the basis of certain process type. So i have used code like below.
       lv_iterator =   me->typed_context->searchresult->collection_wrapper->get_iterator( ).
       lv_entity = lv_iterator->get_first( ).
       WHILE lv_entity IS BOUND.
         CLEAR:lv_object.
         lv_object = lv_entity->get_property_as_string( iv_attr_name = 'PROCESS_TYPE' ).
         IF lv_object <> 'XXX'.
           lr_entity ?= lv_entity.
          me->typed_context->searchresult->collection_wrapper->remove( lv_entity ).
          lr_entity->delete( ).
         ENDIF.
         lv_entity = lv_iterator->get_next( ).
       ENDWHILE.
But only some of the entities from the collection are getting removed. Still some wrong entities exists which i cant even able to delete it by using ,
          me->typed_context->searchresult->collection_wrapper->remove( lv_entity ).
          lr_entity->delete( ).
Am i missing anything here?
Regards,
Santhosh

Hi Santhosh,
Maybe that is happening because you're removing elements from an object (collection_wrapper) inside your loop.
Can you try to create an collection wrapper copy by using GET_COPY method, and then use and loop the iterator on your copied object, and remove the unwanted entities on your main object?
Kind regards,
Garcia

Color individual rows in an ALV Grid

Hello,
in an ALV grid I have to distinguish between certain values in the rows so I wanted to use different colors. I see how to change the color of the columns but cannot work out how to change individual row color. I don´t see any values for this in 'Fieldcat'.
Can anybody help?
Thank you,
Kevin

Here is a sample, program, implement it, it will show you what you need to do.
* Colour code :                                                 *
* Colour is a 4-char field where :                              *
*              - 1st char = C (color property)                  *
*              - 2nd char = color code (from 0 to 7)            *
*                                  0 = background color         *
*                                  1 = blue                     *
*                                  2 = gray                     *
*                                  3 = yellow                   *
*                                  4 = blue/gray                *
*                                  5 = green                    *
*                                  6 = red                      *
*                                  7 = orange                   *
*              - 3rd char = intensified (0=off, 1=on)           *
*              - 4th char = inverse display (0=off, 1=on)       *
* Colour overwriting priority :                                 *
*   1. Line                                                     *
*   2. Cell                                                     *
*   3. Column                                                   *
report zrich_0001
       no standard page heading.
* Use of colours in ALV grid (cell, line and column)            *
* Table
tables : mara.
* Type
types : begin of ty_mara,
          matnr         like mara-matnr,
          matkl         like mara-matkl,
          counter(4)    type n,
          free_text(15) type c,
          color_line(4) type c,           " Line color"
end of ty_mara.
* Structures
data : wa_mara     type ty_mara,
        wa_fieldcat type lvc_s_fcat,
        is_layout   type lvc_s_layo,
        wa_color    type lvc_s_scol.
* Internal table
data : it_mara     type standard table of ty_mara,
       it_fieldcat type standard table of lvc_s_fcat,
       it_color    type table          of lvc_s_scol.
* Variables
data : okcode like sy-ucomm,
       w_alv_grid          type ref to cl_gui_alv_grid,
       w_docking_container type ref to cl_gui_docking_container.
parameters : p_check as checkbox.
at selection-screen output.
perform get_data.
perform fill_catalog.
if w_docking_container is initial.
    perform create_objects.
endif.
*&      Form create_objects
form create_objects.
create object w_docking_container
    exporting
      ratio                       = 60
    exceptions
      cntl_error                  = 1
      cntl_system_error           = 2
      create_error                = 3
      lifetime_error              = 4
      lifetime_dynpro_dynpro_link = 5
      others                      = 6.
create object w_alv_grid
    exporting
      i_parent          = w_docking_container.
* Field that identify color line in internal table
move 'COLOR_LINE' to is_layout-info_fname.
call method w_alv_grid->set_table_for_first_display
    exporting
      is_layout                     = is_layout
    changing
      it_outtab                     = it_mara
      it_fieldcatalog               = it_fieldcat
    exceptions
      invalid_parameter_combination = 1
      program_error                 = 2
      too_many_lines                = 3
      others                        = 4.
endform.
*&      Form get_data
form get_data.
data: this_color(10) type c.
data: index(3) type c.
select * from mara up to 5 rows.
    clear wa_mara-color_line.
    move-corresponding mara to wa_mara.
    add 1                   to wa_mara-counter.
    move 'Blabla'           to wa_mara-free_text.
* Color line, differnt color for each line
    index = sy-tabix.
    concatenate 'C' index '10' into this_color.
    condense this_color no-gaps.
    wa_mara-color_line = this_color.
    append wa_mara to it_mara.
endselect.
endform.
*&      Form fill_catalog
form fill_catalog.
data : w_position type i value '1'.
clear wa_fieldcat.
move w_position to wa_fieldcat-col_pos.
move 'MATNR'    to wa_fieldcat-fieldname.
move 'MARA'     to wa_fieldcat-ref_table.
move 'MATNR'    to wa_fieldcat-ref_field.
append wa_fieldcat to it_fieldcat.
add 1 to w_position.
clear wa_fieldcat.
move w_position to wa_fieldcat-col_pos.
move 'MATKL'    to wa_fieldcat-fieldname.
move 'MARA'     to wa_fieldcat-ref_table.
move 'MATKL'    to wa_fieldcat-ref_field.
add 1 to w_position.
clear wa_fieldcat.
move w_position to wa_fieldcat-col_pos.
move 'COUNTER' to wa_fieldcat-fieldname.
move 'N'        to wa_fieldcat-inttype.
move '4'        to wa_fieldcat-intlen.
move 'Counter' to wa_fieldcat-coltext.
append wa_fieldcat to it_fieldcat.
add 1 to w_position.
clear wa_fieldcat.
move w_position to wa_fieldcat-col_pos.
move 'FREE_TEXT' to wa_fieldcat-fieldname.
move 'C'         to wa_fieldcat-inttype.
move '20'        to wa_fieldcat-intlen.
move 'Text'      to wa_fieldcat-coltext.
append wa_fieldcat to it_fieldcat.
endform.
Regards,
Rich HEilman
Updated the code a bit
Message was edited by: Rich Heilman

How to fetch indivdual rows from a dynamic query.

Hi,
I wish to fetch the individual rows returned from a dynamic query.
if my dynamic query is:
dyn_stmt := select col1, col2, col3
from tab1;
The query returns multiple rows.
Then how to fetch individual rows of this query ?
Please explain.

declare
cur_test sys_refcursor;
c1 varchar2(30);
c2 number;
c3 date;
begin
dyn_stmt := select col1, col2, col3 from tab1;
OPEN cur_test FOR dyn_stmt;
LOOP
    FETCH cur_test INTO c1, c2, c3;
    IF cur_test%NOTFOUND THEN
      EXIT;
    END IF;
    -- Process this row
END LOOP;
CLOSE cur_test;
END;

How to Customize the Rows in Viewer Metadata?

I've been mucking around creating some new, custom views for my metadata, in particular how it displays under images in the Viewer. I notice that in some of Apple's pre-set views ("Viewer - Expanded" for example), there's a top row which displays selected bits of information in a larger font size than the standard rows immediately below. In the "Name & Caption" pre-set, the image's Name is shown in this larger top row, while the Caption is displayed below in the smaller font size. Also, turning the "Show Labels" option on or off only seems to affect the lower rows, not the upper one.
In any case, my question is: how can I specify which bits of metadata get displayed in that top row (and therefore in the larger font), and which get displayed in the lower rows?
For instance, one custom view I'd like to create is one in which the File Name and the Caption get displayed in the larger top row, while other information such as Date, Master Pixel Size, and some other fields get displayed below in the smaller font size.
I've figured out how to tell Aperture which specific bits of metadata I want it to display, but Aperture seems to have its own specific ideas about which bits get displayed in which row (and therefore at which size). Is there no way I can affect this? And does that top row have anything to do with the "Summary" button at the bottom of the Metadata inspector pane (a connection which so far I've been unsuccessful in trying to establish)?
Any suggestions appreciated.
Thanks,
John Bertram
Toronto

Aperture looks for very specific EXIF, IPTC, and "Other" metadata fields in a particular set. If they are there then Aperture will make them large and put them in the top row. The fields are slightly different for the viewer and the browser last time I did an inventory (yes I am that ridiculously OCD on some things). If it is not one of those fields they are put in a smaller font on the second row in the same order they are defined in the metadata view.
If you would like to inventory them yourself just open up the metadata inspector go to the set that is being displayed and one by one check and uncheck each field and each category, they update real time.
RB
When I get around to it I will update this to reflect what fields do what but that will probably change if we ever see a real update again.
[Aperture Metadata Display|http://photo.rwboyer.com/2008/08/aperture-and-metadata-display>
Message was edited by: rwboyer

How to Hide some Rows in a List view Web Part using JavaScript ?

How to Hide some Rows in a List view Web Part using JavaScript ?

Here is the code that worked for me:
var Elements = document.querySelectorAll('div[id=WebPartWPQ3] table[class=ms-listviewtable]>tbody tr .ms-vb-lastCell.ms-cellstyle.ms-vb2')
for(var i=0, n = Elements.length; i < n; i++)
if(Elements[i].innerHTML=="India")
Elements[i].parentNode.setAttribute("style","display:none")
WebPartWPQ3 -> ID of webpart Div
ms-listviewtable -> class name of table in Div
ms-vb-lastCell.ms-cellstyle.ms-vb2 -> classname of td to get text

How to Hide Row in table view depend on condition

Dear Friends,
Please any one suggest how to do hide some rows in table depend on condtions.
My Issue is :
I have table with binding componant context controller, with in that some rows are no need to disply in my table, I tried to delete that entities from collection wrapper in do_prepare_output. but that entites are perminatly deleted from model node.
how can achive this with out delete entities from model node and hide some rows in table view.
thanks & Regards

Hi Andrew,
Please can you explain alobrate, because i wont' found that method in my implimentation and it's table config like follow
<% IF attr->check_consistency( ) eq abap_true. %>
    <chtmlb:configTable xml="<%= lv_xml %>"
                         id="TextList"
                         navigationMode="BYPAGE"
                         onRowSelection="select"
                         table="//Text/Table"
                         width="100%"
                         selectedRowIndex="<%=Text->SELECTED_INDEX%>"
                         selectedRowIndexTable="<%=Text->SELECTION_TAB%>"
                         selectionMode="<%=Text->SELECTION_MODE%>"
                         usage="ASSIGNMENTBLOCK"
                         visibleRowCount="3"/>
<% ENDIF. %>
thanks & Regards
Ganesh

HOW TO GET THE SELECTED VALUE IN A ROW FROM ONE VIEW TO ANOTHER VIEW?

hi all,
I have a small issue.
i have created two views.In the table of the first view i'm selecting a row and pressing the button it will move to next view.
i am adding some fields manually in the table of the second view and pressing the save button.Here all the values should get updated corresponding to the field which i have selected in the first view.
I want to know how to get the particular field in the selected row from one view to another view.
Kindly help me.

Hi,
Any data sharing accross views can be achiveved by defining CONTEXT data in COMPONENT CONTROLLER and mapping it to the CONTEXT of all the views. Follow the below steps.
1. Define a CONTEXT NODE in component controller
2. Define same CONTEXT NODE in all the views where this has to be accessed & changed.
3. Go to CONTEXT NODE of each view, right click on the node and choose DEFINE MAPPING.
This is how you map CONTEXT NODE and same can be accessed/changed from any VIEW or even from COMPONENT CONTROLLER. Any change happens at one VIEW will be automatically available in others.
Check the below link for more info regarding same.
[http://help.sap.com/saphelp_nw04s/helpdata/EN/48/444941db42f423e10000000a155106/content.htm]
Regards,
Manne.

How to get first row from view iterator programatically?

Hi All,
I am using Jdeveloper 11g Release 2.
I want to fetch the first row of a view iterator in a bean. Can any one guide me through this use case.
Any help will be highly appreciated.
Thanks ... Best Regards
Bilal

Use the code snippet as below:
*// 1. Access the binding container*
DCBindingContainer bc = (DCBindingContainer)BindingContext.getCurrent().getCurrentBindingsEntry();
*// 2. Find a named iterator binding*
DCIteratorBinding iter = (DCIteratorBinding)bc.findIteratorBinding("<ITERATOR_NAME>");
*//3. Get the RowSetIterator Object*
RowSetIterator rsi = iter.getRowSetIterator();
*//4. Get the First Row*
Row firstRow = rsi.first();
Thanks,
Navaneeth

How to get color in the final row of table view( table control)

Hi,
iam having a table control displayed with 10 records as output,in that i need to provide a color for the final row since it is total inorder to show difference from other records.
Kindly advise me on this.
Thanks & Regards,
Nehru.

Hi Nehru,
Checkout [THIS|Re: set color for a particular row in table view] thread .
[This |http://www.sapdesignguild.org/resources/htmlb_guidance/table.html#at] Might also help you.
Regards,
Anubhav
Edited by: Anubhav Jain on Jan 4, 2009 7:34 AM

How To Delete a row from view object

Hi
I have a table whose data is populated based on the view object... and for each row i have a delete icon...
when i press on this delete icon i want to delete that particular row from the view object only..but not from the data
base..please help me in this issue
Thanks

Hi,
as per krishna priya says u can delete .
-----1st one thing let me know vo is eo based .???.
If not here is the sample code to delete a row not from the data base.:
public void Deleterow(OAPageContext pageContext, OAWebBean webBean,String prjid)
int idtodelete;
int fetchedrowcount;
Number prjojectid;
RowSetIterator deleteIter;
prjidtodelete=Integer.parseInt(prjid);
OADBTransaction tr = getOADBTransaction();
ProjectsVORowImpl row=null;
ProjectsVOImpl vo= getProjectsVO1();
fetchedrowcount=vo.getRowCount();
deleteIter = vo.createRowSetIterator("deleteIter");
deleteIter.setRangeStart(0);
deleteIter.setRangeSize(fetchedrowcount);
for(int i=0;i<fetchedrowcount;i++)
row= (ProjectsVORowImpl)deleteIter.getRowAtRangeIndex(i);
prjojectid=(Number)row.getAttribute("ProjectId");
if (prjojectid.compareTo(prjidtodelete)==0)
row.remove();
break;
deleteIter.closeRowSetIterator();
Regards
Meher Irk
Edited by: Meher Irk on Nov 2, 2010 12:42 AM

How to get all rows of an attribute data from a table?

Hello.. I´m using Jdev 10.1.3.2
I have a table with 5 columns and N rows.
I need to create a backing bean method to count the value of all rows of a specifc column.
I use
JUCtrlValueBindingRef selectedRowData= (JUCtrlValueBindingRef)myTable().getSelectedRowData();
to get an attribute from a selected row. but How can get from all rows?
Thank you
Vandré

Hi Vandré
I think this example of Steve Muench will help you.
"Recalc Sum of Salary at the View Object Level
This example illustrates a technique where a transient attribute of a view object is updated to reflect the total sum of some attribute of all the rows in the view object's default row set. The code to recalculate the sum of the salary is in the getSumOfSal() method in the EmpViewImpl.java class. The custom EmpViewRowImpl.java class for the view row implements the getter method for the SumOfSal attribute by delegating to this view object method. The EmpViewImpl class extends a base DeclarativeRecalculatingViewObjectImpl class that contains some generic code to enable declaratively indicating that one attribute's change should recalculate one or more other attributes. The EmpView defines the "Recalc_Sal" property to leverage this mechanism to recalculate the "SumOfSal" attribute. If you restrict the VO's results using the BC Tester tool, you'll see the sum of the salaries reflects the subset. If you add a new row or delete an existing row, the sum of sal is updated, too."
http://otn.oracle.com/products/jdev/tips/muench/recalctotalvo/RecalcTotalOfRowsInVO.zip
Good Luck

How to distinguish individual rows in a view?

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