Enhancing a standard component - Table Cell Variant

Question

Hi Forum,
I am trying to enhance the standard WD component /SAPSRM/WDC_UI_SC_DOTC_BD view V_SC_DOTC_BASIC in SRM 7.0 .
The requierment that for certain condition the Quantity cell in a row should be read only.
Carried out the following steps:
1. Created an enhancement
2. In the standard table column ITEMS_TABLE_QUANTITY  [Columns] , removed the standard inputfield.
3. Added two cell variants ZITEMS_TABLE_QUANTITY_CV1  [CellVariants]  and ZITEMS_TABLE_QUANTITY_CV2  [CellVariants]  first one contans a text view and second contains inputfield. Variant key for first one is DISPLAY and for second one is EDITABLE.
4. Enhanced the method WDDOMODIFYVIEW with below code:
**Read the ITEMS table
  DATA lo_nd_items TYPE REF TO if_wd_context_node.
  DATA lt_items TYPE wd_this->elements_items.
  DATA ls_item LIKE LINE OF lt_items.
  DATA lo_el_context TYPE REF TO if_wd_context_element.
  DATA ls_context TYPE wd_this->element_context.
  DATA lv_disable_quantity TYPE wd_this->element_context-enable_quantity.
  DATA lr_table_column TYPE REF TO cl_wd_table_column.
** navigate from <CONTEXT> to <ITEMS> via lead selection
  lo_nd_items = wd_context->path_get_node( path = `COMP_CONTEXT.ITEMS` ).
  lo_nd_items->get_static_attributes_table( IMPORTING table = lt_items ).
  lr_table_column ?= view->get_element( 'ITEMS_TABLE_QUANTITY' ).
  LOOP AT lt_items INTO ls_item .
    IF  ls_item-catalogid EQ 'VEP_Staples_D0'.
      lr_table_column->set_selected_cell_variant( value = 'DISPLAY' ).
    ELSE.
      lr_table_column->set_selected_cell_variant( value = 'EDITABLE' ).
    ENDIF.
  ENDLOOP.
But even after the condition is true ALL cell i.e. the complete column is DISABLED or when the condition is false the COMPLETE column is enabled instead of enabling disabling ONLY THE SPECIFIC CELL.
Is there a problem with the code in WDDOMODIFYVIEW or something else?
Thanks,
Anubhav

Answer 1

Hi  Saravanan
Under ITEMS node I added one more Node(cv_quantity) and one attribute(cell_variant_quantity) with in this node.
And code in WDDOMODIFYVIEW :
DATA lo_nd_items TYPE REF TO if_wd_context_node.
  DATA lt_items TYPE wd_this->elements_items.
  DATA ls_item LIKE LINE OF lt_items.
  DATA lo_el_context TYPE REF TO if_wd_context_element.
  DATA ls_context TYPE wd_this->element_context.
  DATA lr_table_column TYPE REF TO cl_wd_table_column.
** navigate from <CONTEXT> to <ITEMS> via lead selection
  lo_nd_items = wd_context->path_get_node( path = `COMP_CONTEXT.ITEMS` ).
  lo_nd_items->get_static_attributes_table( IMPORTING table = lt_items ).
  lr_table_column ?= view->get_element( 'ITEMS_TABLE_QUANTITY' ).
  DATA lo_nd_cv_quantity TYPE REF TO if_wd_context_node.
  DATA lo_el_cv_quantity TYPE REF TO if_wd_context_element.
  DATA ls_cv_quantity TYPE wd_this->element_cv_quantity.
IF first_time EQ abap_true.
  lr_table_column->set_selected_cell_variant( value = 'EDITABLE' ).<--Initially ALL cells shoud be editable
ELSE.
  lr_table_column->bind_selected_cell_variant( path = 'COMP_CONTEXT.ITEMS.CV_QUANTITY.CELL_VARIANT_QUANTITY' )  .
* navigate from <CONTEXT> to <CV_QUANTITY> via lead selection
  lo_nd_cv_quantity = wd_context->path_get_node( path = `COMP_CONTEXT.ITEMS.CV_QUANTITY` ).
  IF lo_nd_cv_quantity is BOUND.
  lo_el_cv_quantity = lo_nd_cv_quantity->get_element( ).
      LOOP AT lt_items INTO ls_item .
        IF  ls_item-catalogid EQ 'VEP_Staples_D0' AND ls_item-number_int IS NOT INITIAL AND ls_item-description IS NOT INITIAL.
          lo_el_cv_quantity->set_attribute(
                                            name =  `CELL_VARIANT_QUANTITY`
                                            value = 'DISPLAY' ).
        ELSEIF ls_item-catalogid NE 'VEP_Staples_D0' OR ( ls_item-number_int  IS INITIAL AND ls_item-description IS INITIAL ) ."If the condition is not satisfied OR no item is added to that line
          lo_el_cv_quantity->set_attribute(
                                            name =  `CELL_VARIANT_QUANTITY`
                                            value = 'EDITABLE' ).
        ENDIF.
      ENDLOOP.
ENDIF.
ENDIF.
Now If I add an item that DO NOT satisfy the comdition to be read only, for that row the quantity is enabled but for all the rows below it quantity cells are DISABLED.
Hope my issue is clear?
Thanks a lot,
Anubhav