create C# method from code

i want to make the following code into its own method so i can use it multiple times.  can someone show me how to do that?

ReportViewer rview = new ReportViewer();
        rview.ServerReport.ReportServerUrl = new Uri(WebConfigurationManager.AppSettings["ReportServer"]);

        List<ReportParameter> paramList = new List<ReportParameter>();

        paramList.Add(new ReportParameter("FacilityID", Globals.FacilityID.ToString()));

        rview.ServerReport.ReportServerCredentials = new ReportCredentials("xxxx", "xxxx", "xxxx");
        rview.ServerReport.ReportPath = "/BoardAssessment/AssessmentReport";
        rview.ServerReport.SetParameters(paramList);
        string mimeType, encoding, extension, deviceInfo;
        deviceInfo = "<DeviceInfo>" + "<SimplePageHeaders>True</SimplePageHeaders>" + "</DeviceInfo>";
        string[] streamids;

        Warning[] warnings;
        byte[] bytes = rview.ServerReport.Render("Excel", deviceInfo, out mimeType, out encoding, out extension, out streamids, out warnings);
        Response.ContentType = "application/Excel";
        Response.AddHeader("Content-disposition", "attachment;filename=BoardAssessment.xls");

        Response.OutputStream.Write(bytes, 0, bytes.Length);
        Response.OutputStream.Flush();
        Response.OutputStream.Close();
        Response.Flush();
        Response.Close();

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