VB.NET Language Pocket Reference

Name

CallByName Function — Microsoft.VisualBasic.Interaction

Synopsis

CallByName(Object, ProcName, UseCallType, Args(  ))

Object required; Object

A reference to the object containing the procedure being called.

ProcName required; String

The name of the procedure to call.

UseCallType required; CallType constant

A constant of type CallType indicating what type of procedure is being called. The CallType constants are:

Constant	Value	Description
Method	1	The called procedure is a method
Get	2	The called procedure retrieves a property value
Let	4	The called procedure sets the value of a property

Args optional; any

A ParamArray argument representing the arguments required by the procedure being called.

Named Arguments

Yes, if Args( ) is omitted

Return Value

Depends on the return value (if any) of the called procedure

Description

Provides a method for calling a class member by name.

Since ProcName is a string expression, rather than the literal name of a routine, it is possible to call routines dynamically at runtime using a string variable to hold the various procedure names.