D365 Post handler for overriding table methods modified field and validate Write

[PostHandlerFor(tableStr(InventTable), tableMethodStr(InventTable, validateWrite))]

public static void InventTable_Post_validateWrite(XppPrePostArgs args)

{

      InventTable inventTable = args.getThis() as InventTable

      boolean ret = true;

      // Override the validations here and set the return value accordingly.

       Args.setReturnValue(ret);

}