Lead Selection does not work after setting filter for ALV.

Question

Hi, Can you please suggest on below scenario :
I have a Node with a sub node in it .
I am using the supply function on Sub Node to retrieve the date based on Parent Node.
There are two ALV's to display parent and item data. The issue is when a filter(user defined filter) is done on Parent table, the supply function does not work. The value is that of the selected row before setting the filter. Even after removing the filter, the item data is stuck and does not change on Lead Selection.
One thing I noticed is if the child table is a table UI, there is no issue. The only problem is when the second table is ALV
Thanks In Advance

Answer 1

Hi Prashanthi,
Your issue can be resolved as below
Create an event handler method 'set_alv_data'  for the event 'ON_LEAD_SELECT' of parent alv
Write the below code inside the event handler method
METHOD set_alv_data.
  DATA lo_node TYPE REF TO if_wd_context_node.
  DATA lv_path TYPE string.
  DATA lv_index TYPE string.
  lv_index = r_param->index.
  CONDENSE lv_index.
  CONCATENATE wd_this->wdctx_my_parent_node
  lv_index
  wd_this->wdctx_my_child_node
  INTO lv_path SEPARATED BY '.'.
  lo_node = wd_context->path_get_node(
      path                          = lv_path
  DATA lo_interface TYPE REF TO iwci_salv_wd_table.
  lo_interface = wd_this->wd_cpifc_alv_child( ). "get the ref of alv comp of child
  lo_interface->set_data(
    EXPORTING
*    only_if_new_descr =
      r_node_data       = lo_node
ENDMETHOD.
The above code sets the data node of child alv based on lead selection of parent alv data.
Note: Replace 'parent_node', 'child_node'  with your nodes & 'alv_child' with your alv component name of child alv.
If you want to control the data of child alv on filter function, you can use the event ON_STD_FUNCTION_AFTE and once you define the filter you get the r_param->id = 'SALV_WD_FILTER_DEFINE'  & now you can clear data of child alv.
Hope this helps you.
Regards,
Rama