Get Key at Index
Use this system function to get the key of an item in a combo box list by specifying its index position in the list. If the specified index value is invalid, no key value is returned and an error message is logged.
Parameters
- ComboBox Control
-
Input, required. The combo box FC to affect.
- Index
-
Input, required. The zero-based index position of the target item (integer). Set the parameter to an alphanumeric constant (<Literal>) or applicable object from the object list.
- Key
-
Input, required. The object to which to assign the return value that designates the key of the target item (string or math-numeric). Set the parameter to an alphanumeric constant (<Literal>) or applicable object from the object list.
Returns
This system function returns the key of a combo box item to the object defined by Key.