Write protect a column in ALV Table

Question

Hi All,
I have an ALV Table with few columns. Some of the columns has got check boxes. Now my question is, depending on the conditions i want to write protect a particular column. Could you tell me how to do it?
Thanks & Regards,
Ravi

Answer 1

Hi Ravi,
By default the column of ALV table are in read only mode but you want them to based on certain contion them first make that column editable by using the following code
data l_table type ref to cl_salv_wd_config_table.
  l_table = l_salv_wd_table->get_model( ).
DATA: lr_column_settings TYPE REF TO if_salv_wd_column_settings,
lr_input_field TYPE REF TO cl_salv_wd_uie_input_field.
lr_column_settings ?= l_table.
l_column = lr_column_settings->get_column( 'CARRID' ).
CREATE OBJECT lr_input_field EXPORTING value_fieldname = 'CARRID'.
l_column->set_cell_editor( lr_input_field ).
data: lr_table_settings type ref to if_salv_wd_table_settings.
lr_table_settings ?= l_table.
lr_table_settings->set_read_only( abap_false ).
Now create an event handler associated with the ON_CLICK event of alv and used the following code the made the column read only (based on condition)
data l_table type ref to cl_salv_wd_config_table.
  l_table = l_salv_wd_table->get_model( ).
data: lr_table_settings type ref to if_salv_wd_table_settings.
lr_table_settings ?= l_table.
lr_table_settings->set_read_only( abap_false ).
I hope it helps.
You can also refer this article[Editing ALV in Web Dynpro for ABAP |https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/3133474a-0801-0010-d692-81827814a5a1].
Regards
Arjun