Help needed in using the appropriate Trigger

Question

I have a master detail form.DEPT block is the master block and Employee is Detail block.I need to display the message when user is
trying to enter the ENAME field in the Employee block(detail) when the DEPTNO in the DEPT block(master) is not equal to 10.
Messgae should be displayed when user trying to type the value but not when the user navigates into the ENAME text field.
What is the appropriate trigger that is useful here?
Thanks.
GSR

Answer 1

If the DEPT block is table based in the block's POST-QUERY trigger you can simply set
  if :DEPT.DEPTNO !=10 then
    set_item_proerty('DEPT.ENAME', insert_allowed, property_false);
    set_item_proerty('DEPT.ENAME', update_allowed, property_false);
  else
    set_item_proerty('DEPT.ENAME', insert_allowed, property_true);
    set_item_proerty('DEPT.ENAME', update_allowed, property_true);
  end if;if the block is a non-database one then you can put that code in EMPNAME's WHEN-VALIDATE-ITEM trigger
Luca
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