How can we use the "sender" parameter in a click event?

[leonlai]

Hi, everybody

I am learning how to program Excel using VB .NET and am still very much a newbie.

I am trying to understand how we can use the "sender" parameter in a click event.

I got this interesting sample from the net:

Private Sub Button_Click(ByVal sender As Object, ByVal e As EventArgs) _
                                               Handles Button1.OnClick, Button2.OnClick

        Dim s As String
        If sender Is Button1 Then
            s = "button1"

        ElseIf sender Is Button2 Then
            s = "button2"

        End If

        MsgBox("You pressed: " & s)

    End Sub

Unfortunately, the article does not explain what code to put in the click events of Button1 and Button2


I tried the following (for Button1), but it does not work:

Private Sub Button1_OnClick(ByVal sender As System.Object, _ 
ByVal control As AddinExpress.MSO.IRibbonControl, _
ByVal pressed As System.Boolean) Handles Button1.OnClick

        Button_Click(Button1)      '// DOES NOT WORK!!

End Sub

The error message is:

Argument not specified for parameter 'e' of Private Sub Button_Click (sender As Object, e As System.Event Args).

Can anybody help?

Thanks
Leon