[ali.alfoly]

كود :

' This example uses the Parent property and the Find method of Control to set
    ' properties on the parent control of a Button and its Form. The example assumes
    ' that a Button control named button1 is located within a GroupBox control. The  
    ' example also assumes that the Click event of the Button control is connected to
    ' the event handler method defined in the example.
    Private Sub button1_Click(sender As Object, e As System.EventArgs) Handles Button1.Click
        ' Get the control the Button control is located in. In this case a GroupBox.
        Dim control As Control = button1.Parent
        ' Set the text and backcolor of the parent control.
        control.Text = "My Groupbox"
        control.BackColor = Color.Blue
        ' Get the form that the Button control is contained within.
        Dim myForm As Form = button1.FindForm()
        ' Set the text and color of the form containing the Button.
        myForm.Text = "The Form of My Control"
        myForm.BackColor = Color.Red
    End Sub