Open a popup Window from C# code behind asp.net 2.0

open a popup window from C# code behind

Sample:

    protected void LinkButton1_Click(object sender, EventArgs e)

    {

        //File Receiveed/Assign to Processor

        string url = "uplfile.aspx?strtxt=File Receiveed/Assign to Processor&caseno=" + Request["caseno"];

        ClientScript.RegisterStartupScript(this.GetType(), "newWindow", String.Format("<script>window.open('{0}');</script>", url));

        

        //Response.Redirect("uplfile.aspx?strtxt=File Receiveed/Assign to Processor&caseno=" + Request["caseno"]);

    }