How to hide columns that are getting added dynamically to UI Element 'Table

Question

In SRM 7.0 while displaying a RFx, click on "responses and awards" button.
In the response comparision tab once the user selects response number and clicks on "compare all responses".
Item details table is displayed with fields item number,internal number,item description,........,Price etc.
Requirement is  to hide the price column from the table.
The UI element type is 'Table'.
But the catch is there is no column price visible at layout design level.
This field is getting added dynamically at run time.
When i right click and see the 'more field help' at the front end i get the field id as 'GRP_1_COL_3_TXTV'.
lo_table ?= view->get_element( id = 'ITEMS_TABLE' ).
lo_column = lo_table->get_column( id = 'GRP_1_COL_3_TXTV').
ASSERT lo_column IS NOT INITIAL.
lo_column->set_visible( EXPORTING value = '01' ).
I had written the above code in the pre-exit of WDDOMODIFYVIEW.
But i am getting dump as assertion failed.it says no column by name 'GRP_1_COL_3_TXTV'.
Please help me inhow to hide fields or buttons getting generated dynmically.
Regards,
Venkat Raghavan.

Answer 1

Hi Anitha,
What i understood from your question is,you want to control the table from your inputs.I have a one question for you what do you want to show defaultly i.e when you run the application what you want to show,either no table or table with some values.
Any how i am giving solution in this way.
If both inputs are given proper table output is displayed
Write your below logic in the WDDOMODIFYVIEW )
Here i am assuming that you already have a table element in the view.
Get the values entered in the input fields and compare those 2 values ,if the condition is satisfied then bind the values which you want to show in the table to the context node.
but if only 1 input is given a column is empty in the output table so i want to hide this column dynamically at runtime based on my inputs
You are telling that you know the empty column.If so get the view element reference and use the REMOVE_COLUMN to remove the column.
data:lr_table type ref to cl_wd_table,
       lr_column type ref to L_WD_TABLE_COLUMN.
lr_table ?= view->get_element( 'TABLE1' ).
CALL METHOD LR_TABLE->REMOVE_COLUMN
    EXPORTING
      ID          = 'TABLE1_color'
     INDEX      =
    RECEIVING
      THE_COLUMN = lr_column.
i want to hide some empty rows also at runtime based on inputs.
Removing the rows is very simple.if you know the key fields data of internal table from your input fields then do in this way.
delete itab from wa where key1= "12" and key2="abd".
Now bind the internal table to context node.
LO_ND_hcm->BIND_TABLE(
      NEW_ITEMS            = it_final
      SET_INITIAL_ELEMENTS = ABAP_TRUE ).