Define a delegate to be a pointer to a subroutine that has a string parameter. : Delegate « Class Module « VB.Net Tutorial

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VB.Net Tutorial » Class Module » Delegate 
6.28.2.Define a delegate to be a pointer to a subroutine that has a string parameter.
public class Test

   public Shared Sub Main
        Dim m_DisplayStringRoutine As StringDisplayerType

        m_DisplayStringRoutine = AddressOf ShowStringInMessageBox ' ShowStringInOutputWindow

        m_DisplayStringRoutine("Hello world")
   End Sub

    Private Delegate Sub StringDisplayerType(ByVal str As String)

    Private Shared Sub ShowStringInOutputWindow(ByVal str As String)
        Console.WriteLine(str)
    End Sub

    Private Shared Sub ShowStringInMessageBox(ByVal str As String)
        Console.WriteLine("+++"+str)
        
    End Sub

End class
+++Hello world
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>)>)
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