Use Delegate Sub : Delegate « Class Module « VB.Net Tutorial






  1. VB.Net Tutorial
  2. Class Module
  3. Delegate
Module Module1

    Delegate Sub StringMethod(ByVal S As String)

    Sub DisplayString(ByVal S As String)
        Console.WriteLine(S)
    End Sub

    Sub UpperString(ByVal S As String)
        Console.WriteLine(UCase(S))
    End Sub

    Sub Main()
        Dim MyMethod As New StringMethod(AddressOf DisplayString)
        MyMethod.Invoke("Visual Basic .Net Programming")

        MyMethod = AddressOf UpperString
        MyMethod.Invoke("Visual Basic .Net Programming")
    End Sub
End Module

Visual Basic .Net Programming
VISUAL BASIC .NET PROGRAMMING




6.28.Delegate
6.28.1.Define delegate
6.28.2.Define a delegate to be a pointer to a subroutine that has a string parameter.
6.28.3.Use Delegate Sub
6.28.4.Delegate Function
6.28.5.Uses delegates to sort random numbers (ascending or descending)
6.28.6.Use AddressOf to assign function to a delegate
6.28.7.Comparison method based on delegate
6.28.8.Multiple Delegates
6.28.9.Math delegation
6.28.10.Use one Delegate to reference two different functions
6.28.11.Reference a method that has one parameter and returns a value: Func<(Of <(T, TResult>)>)