Public Overridable Shadows Property Parent As Control

Dim instance As ElementControl
Dim value As Control
 
instance.Parent = value
 
value = instance.Parent

public virtual new Control Parent {get; set;}

// Change the parent of the controls
private void button1_Click(object sender, System.EventArgs e)
{
    control.Parent = groupBox1;
    control2.Parent = this; 
}

'Change the parent of the controls
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
    control.Parent = Me
    control2.Parent = GroupBox1
End Sub