Dynamic Tables: TableCellEditor depending on Context node value

Dear community,
I'm creating a dynamic table containing all the neccessary fields to display my context node in Java code but I have one requirement that I can not resolve by myself:
Depending on the value of a cell the TableCellEditor should be of type IWDTextView or LinkToURL. So if the context node value is e.g. the String "abc" I want to display a LinkToUrl containing a Target - such as http://www.abc.com - depending on the value, if the context node value is "def" I want to do nothing but display the value in a TextView.
As I am creating the dynamic table in advance and binding my Context node to it later, I don't know how to change the TableCellEditor at that point of time.
Right now I have the choice to either display all cells of the column as LinkToUrl TableCellEditor or display all cells as TextView - the dynamic table generation itself is no problem for me.
Does anyone have an idea on how to do that? Maybe it is not possible in WDJ right now?
regards,
Christian

Hi Christian
Try this:
IWDTable theTable=(IWDTable)view.createElement(IWDTable.class,"table");
IWD TableColumn aColumn=(IWDTableColumn)view.createElement(IWDTableColumn.class,"col");
if(str.equal("abc"))
IWDTextView aField=(IWDTextView)view.createElement(IWDTextView.class,"TextView");
aField.bindText(str);
aColumn.setTableCellEditor(aField);
else if(str.equal("def"))
IWDLinkToURL aField=(IWDLinkToURL)view.createElement(IWDLinkToURL.class,"LinkToURL");
aField.bindtarget("http://www."str".com");
aColumn.setTableCellEditor(aField);
theTable.addColumn(aColumn);
Best regards,
Sangeeta

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Hi,
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The topic subject already describes my situation.
I have to create, populate and remove context nodes at runtime, and bind them to an ALV, to let user display the data or modify the data. The nodes I create are always typed with a table name, but the table name is of course, dynamic.
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I have checked with method GET_ATTRIBUTE_VALUEHELP_TYPE of interface IF_WD_CONTEXT_NODE_INFO, on an attribute which i know to have a search help (Foreign key of a check table).
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Regards,
Madhura Lobo
Edited by: Suhas Saha on Aug 2, 2011 11:04 AM

Hi Madhura,
Please check this thread and find Baskaran answer...
create new child-node in supply-function
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Cheers,
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If you use a combination of static attributes added with dynanic attributes (during runtime) for dynamic ALV, I advise to create a new node and bind the values to this new created node:
Cheers, John
wd_this->extend_context( EXPORTING im_struc_descr = lr_cl_abap_structdescr
                           IMPORTING ex_node = lr_node_alv ).
Method:
*&- Create new dynamic context LINES_DYN
Node for alv-table
lr_node_info = wd_context->get_node_info( ).
CALL METHOD lr_node_info->add_new_child_node
    EXPORTING
      name                  = 'LINES_NEW'
      static_element_rtti   = im_struc_descr
      is_static             = abap_true
      is_multiple           = abap_true
      is_multiple_selection = abap_false
    RECEIVING
      child_node_info       = lr_subnode_info.
lr_node = lr_subnode_info->get_parent( ).
lr_node = wd_context->get_child_node( 'LINES_NEW' ).
ex_node = lr_node.
*&- bind table for alv
lr_node_alv->bind_table( new_items = <fs_tb_tree_new>
                           set_initial_elements = abap_true ).

Dynamic table with dynamic drop-down list values

Hi,
I need to display a dynamic table with 2 columns on an interactive form.
My Context is defined as below:
Root
StudentData     0..n
StudentName
StudentCourses     0..n
Text
Value
The 1st column should display student name, 2nd column should display student courses. The courses will be different for each student. I populated the context properly. I checked it by printing them. My DDL is bound to "Student Courses".
When there is one row -> The DDL is populated with the courses of student 1 (as there is only one).
When there are more rows -> The DDLs for all the students are populated with all the courses of all the students.
I want to see the data populated like:
TEXTFIELD    DROP-DOWN LIST
Student 1------Student1-Course1
Student1-Course2
Student1-Course3
Student 2------Student2-Course1
Student2-Course2
Student2-Course3
I tried to do this in plain web dynpro using SVS.. it is also working similarly.
I have set the singleton property of nodes "StudentData" and "StudentCourses" to false.
Could any one tell me where I am going wrong?
Thanks
Ram

Ram,
I'm not sure how much this will help, but I know I had the same problem as you when I tried to get a similar thing working, but I can't remember which of the many changes I made fixed the problem, so I'll just show you my code and perhaps you can see if anything is different than yours.
Here's where I'm creating my dropdown - in my case EastNew_RegOut is the same as your StudentData, and RateTypeDropValues is the same as your StudentCourses (the comments in the code are not meant to sound bossy to you, this is actually an example piece of code that other developers in my company "steal", so I have to put very specific instructions in there!):
int nodeSize = wdContext.nodeEastNew_RegOut().size();
for (int i = 0; i < nodeSize; i++) {
     //create an element called "table", that's the element at i. So, basically it's a row. Maybe I should have
     //called it "row" instead of table.
     IPublicDeviceExchange.IEastNew_RegOutElement table = (IPublicDeviceExchange.IEastNew_RegOutElement)wdContext.nodeEastNew_RegOut().getElementAt(i);
     //this line of code just executes an rfc that finds out what rates need to be in the dropdown for this particular row
     executeRateTypeDropdown(rateCategory, table.getNum(), wdContext.currentEastNew_MeterOutElement().getReggrp());
     //clear out what's already in there before we re-populate it.
     table.nodeRateTypeDropValues().invalidate();
     //now, I'm looping through all the values in the *actual* rate type dropdown (the one that's an RFC, populated by the above "execute" method)
     for (int j = 0; j < wdContext.nodeEastRatetype_DropdownOut().size(); j++) {
          //for each element in the *actual* Rate type dropdown, I'm going to create an element in my node that I created
          //and set the values from the *actual* one as the values in my node.
                    IPublicDeviceExchange.IRateTypeDropValuesElement element = wdContext.createRateTypeDropValuesElement();
          IPublicDeviceExchange.IEastRatetype_DropdownOutElement rateTypeOut = (IPublicDeviceExchange.IEastRatetype_DropdownOutElement)wdContext.nodeEastRatetype_DropdownOut().getElementAt(j);
          element.setText(rateTypeOut.getText());
          element.setValue(rateTypeOut.getRatetype());
          //here's another key - notice how I don't say wdContext.nodeRateTypeDropValues() - it's the one that's
          //directly off that table I created earlier - the thing that's essentially a row in my newReg table.
          //So, what I'm doing here is adding that new element I created to the dropdown FOR THAT ROW!
          //(btw, if you're trying to duplicate this, and this method does not exist for your "table" object, it's
          //probably because you didn't listen to me above and you didn't create your node with the singleton property
          //set to false.)
          table.nodeRateTypeDropValues().addElement(element);
As for my layout... my table is bound to the EastNew_RegOut node, and the column with the dropdown is bound to RateTypeDropValues.Value (that's probably obvious, but there you have it anyway)
Finally, in my context, EastNew_RegOut is singleton = true (I was surprised about this, actually, I would have assumed it was false) with a selection of 0..1 and RateTypeDropValues has singleton set to false with a selection of 0..1
I hope that helps to some degree!
Jennifer

Dynamic Tables: TableCellEditor depending on Context node value

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