Check-box --- Read only property in Table UI Element of Webdynpro

[balajishahrsap]

Hi Experts,

We have standard SRM webdynpro component where in we have a Table UI element about 26 columns,

Here one of the Column is a check-box. Based on the Login user this check box column should be in read only mode.

for instance if any users log-in he should have the previlage to check or uncheck the check box, But whenever an approvers sees the same page the check-box column should be in a dis-abled mode. i tried the below code... but unfortunately it is not behaving as expected.

"Get table reference
    lo_table ?= view->get_element('ITEMS_TABLE').

    "Get Columns of table

    lt_cols = lo_table->get_columns( ).

    "Check if no columns found
    IF lt_cols[] IS INITIAL.

      "get grouped columns list
      lt_grp_cols = lo_table->get_grouped_columns( ).

      "collect into columns table
      LOOP AT lt_grp_cols INTO ls_grp_cols.
        ls_cols ?= ls_grp_cols.
        APPEND ls_cols TO lt_cols.
      ENDLOOP.
    ENDIF.

    "For each column and its editor, set the read only property
    LOOP AT lt_cols INTO ls_cols.

      " get the cell editor,
      lo_inp ?= ls_cols->get_table_cell_editor( ).

IF ls_cols->id = 'ITEMS_TABLE_ACPT_IND'.

      IF lo_inp IS BOUND.
        lv_path =  lo_inp->bound__primary_property( ).

        CONCATENATE lv_path 'READ_ONLY' INTO lv_path SEPARATED BY ':'.

      "bind the read_only property to the attributes property

        lo_inp->bind_read_only( path = lv_path ).
      ENDIF.

endif.

    ENDLOOP.

[ramakrishnappa · Accepted solution]

Hi Balajisha,

in modifyview, you bound to READ_ONLY property of attribute and it looks fine.

But you are not setting the value for READ_ONLY property of context attribute.

Refer below code:

METHOD onactionlock .
  DATA lv_btn_name    TYPE string.
  DATA lv_lock        TYPE wdy_boolean.
  DATA lo_node        TYPE REF TO if_wd_context_node.
  DATA lt_elements    TYPE wdr_context_element_set.
  DATA ls_elements    LIKE LINE OF lt_elements.
  DATA lt_attr_names  TYPE string_table.
  DATA lv_attr_name   LIKE LINE OF lt_attr_names.
  DATA ls_data        TYPE wd_this->element_data.

  "get button name
  wdevent->get_data(
      EXPORTING name = 'ID'
      IMPORTING value = lv_btn_name ).

  " Prepare the locking/unlocking value based on button
  CASE lv_btn_name.
    WHEN 'BTN_LOCK'.
      lv_lock = abap_true.
    WHEN 'BTN_UNLOCK'.
      lv_lock = abap_false.
    WHEN OTHERS.
      lv_lock = abap_false.
  ENDCASE.
  "=================================
  " Read node data and set the read only properties of cells
  "=================================
  FIELD-SYMBOLS: <fs_value> TYPE any.

  lo_node = wd_context->get_child_node( name = wd_this->wdctx_data ).
  lt_elements = lo_node->get_elements(
  ).

  "get the attributes list

  lt_attr_names =
  lo_node->get_node_info( )->get_attribute_names( ).

LOOP AT lt_elements INTO ls_elements.

    ls_elements->get_static_attributes(
      IMPORTING
        static_attributes = ls_data
    ).

    LOOP AT lt_attr_names INTO lv_attr_name.
      UNASSIGN <fs_value>.
      ASSIGN COMPONENT lv_attr_name OF STRUCTURE ls_data TO <fs_value>.
      IF <fs_value> IS NOT INITIAL.
        ls_elements->set_attribute_property(
          EXPORTING
            attribute_name = lv_attr_name
            property       = if_wd_context_element=>e_property-read_only
            value          = lv_lock
        ).
      ENDIF.
    ENDLOOP.
  ENDLOOP.
ENDMETHOD.

Hope this helps you.

Regards,

Rama

[balajishahrsap · Accepted solution]

Hi Rama,

I am now trying with the above mentioned sample, and i  have query related to "wd_this->wdctx_data".

instead of WDCTX_DATA i have given WDCTX_ITEMS and i am getting a dump.

"

Exception 'CX_WD_CONTEXT' was raised, but it was not caught anywhere along the

call hierarchy.

"

I believe wd_this refers to the view itself and WDCTX_DATA referes to the node in the view context(DATA).

In my requirement the node(ITEMS) which is binded to the table is a sub-node of COMP_CONTEXT in that case how it should be.

Please let me know on this

[ramakrishnappa · Accepted solution]

Hi Balajisha,

If you are trying to get the sub node, then you use the method PATH_GET_NODE(  ) and pass the path like 'COMP_CONTEXT.1.ITEMS'

Please refer the below link for more info.

Reference Path to Deeper Context Nodes - Web Dynpro for ABAP - SAP Library

Regards,

Rama

[balajishahrsap · Accepted solution]

Thanks Rama for your timely help