How to Set Default Value for a Specific Field in a Subform Based on a Condition?

How to Set Default Value for a Specific Field in a Subform Based on a Condition?

I have a subform called Materials, which contains a checkbox field named Charge. I want to set the Charge field's default value based on the variable g_VIP under the following conditions:

  1. When the page loads (Page.onload).
  2. When the "Add row" button is clicked.

If g_VIP is Y, then set Materials.Charge to False. Otherwise, set Charge to True.