How can I close a browser window from a button?

To close a browser window from a button, you must use JavaScript.

For example, in C#:

protected void btnClose_Click(object sender, EventArgs e)
{
	Response.Write("<script language='javascript'> { window.close();}</script>");
}

And in VB .NET:

Protected Sub btnClose_Click(sender As Object, e As EventArgs)
   Response.Write("<script language='javascript'> { window.close();}</script>")
End Sub