I have 2 fields ctype and mtype. I have written F4IF_INT_TABLE_VALUE_REQUEST for field ctype. After selecting a value for ctype I want a list of values for mtype which is dependent on ctype. However F4IF_INT_TABLE_VALUE_REQUEST returns an empty list. I have used ctype in select statement for mtype. However the selected ctype is not passed to the program. How do I do this ?