Call_form,how to recognis input by called form

Question

I am using call_form.
I am making a parameter list in calling form and passing it to a other form. But how the other form will recognize those parameter? please tell me.

Answer 1

Hi,
You need to create the parameter(s) on your target form and some code to make use of it:
1.- Open the form module and find the Parameters node
2.- Create the Parameter(s) needed. make sure the parameter name is the same used in the caller form and set the data type and maximum length as required.
3.- Add a code snippet to trigger when-new-form-instance:
begin
     if :parameter.YOUR_PARAMETER is not null then
     go_block('YOUR_DATA_BLOCK');
     execute_query;
     end if;
Exception
when others then
message('Error setting form parameters. '||sqlerrm, no_acknowledge);
end;
4.- On YOUR_DATA_BLOCK pre-query trigger add:
begin
If :Parameter.YOUR_PARAMETER is not null then
:YOUR_DATA_BLOCK.BLCOK_ID := TRIM(:Parameter.YOUR_PARAMETER);
End if;     
Exception
when others then
message('Error setting parameters. '||sqlerrm, no_acknowledge);
end;
Regards,
Hugo