Passing a Method ?

Is there a way that I can add a property to a class that I can then use to fire given method ?

Public Class Box
   Public name As String
   Public size As Double
   Public mouseentermethod As Method ?????
End Class

Public Sub drawBox(box As Box)
        With box
                    Dim rect As New Rectangle
                    rect.Name = .name
                    rect.Width = .size
                    rect.Height = .size
                    rect.Fill = New SolidColorBrush(Colors.Red)
                    grd.Children.Add(rect)

                    ' call the method associated with this instance of the Box Class
                    AddHandler rect.MouseEnter, AddressOf .mouseentermethod
        End With
End Sub

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WatersideAsked:
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Éric MoreauSenior .Net ConsultantCommented:
this is exactly the definition of a Delegate. Check https://msdn.microsoft.com/en-us/library/ms172879.aspx
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WatersideAuthor Commented:
Ok.  What type do I make .mouseentermethod in the Class to be able to use it with the AddHandler ?
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Éric MoreauSenior .Net ConsultantCommented:
I would point the AddHandler to a real method that exist in that class and that method would call the delegate.
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WatersideAuthor Commented:
Can you elaborate please ?
0
Éric MoreauSenior .Net ConsultantCommented:
Try this:

Option Strict On

Public Class Form1

    Private myBox as Box
    Private Sub Button1_MouseEnter(sender As Object, e As EventArgs) 'Handles Button1.MouseEnter
        myBox.mouseentermethod(sender, e)
    End Sub

    Private Sub Button1_MouseLeave(sender As Object, e As EventArgs) Handles Button1.MouseLeave
        Label1.Text=String.Empty
    End Sub

    Private Sub Form1_Load(sender As Object, e As EventArgs) Handles Me.Load
        AddHandler Button1.MouseEnter, AddressOf Button1_MouseEnter
        myBox = New Box()
        myBox.Name = "test"
        myBox.mouseentermethod = AddressOf CustomMouseEnter
    End Sub
    private Sub CustomMouseEnter(sender As Object, e As EventArgs) 
        Label1.Text = myBox.Name
    End Sub

End Class

Public Class Box
    delegate sub MyMouseEnter(sender As Object, e As EventArgs)

    Public Name As String
    Public Size As Double
    Public mouseentermethod As MyMouseEnter
    
End Class

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