No Overload for method 'Render' takes 1 arguments - c#-4.0

Question

This is my code i have done it for my project to genrate a pdf report
public partial class Report : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
getreport();
}
}
public override void VerifyRenderingInServerForm(Control control)
{
// base.VerifyRenderingInServerForm(control);
}
public void getreport()
{
string province = Request.QueryString["Province"].ToString();
string district = Request.QueryString["District"].ToString();
string village = Request.QueryString["Village"].ToString();
ReportViewer1.ProcessingMode = ProcessingMode.Local;
LocalReport rep = ReportViewer1.LocalReport;
rep.ReportPath = #"Report.rdlc";
ReportDataSource dsRep = new ReportDataSource();
dsRep.Name = "DataSet1";
dsRep.Value = GetDataTable(province, district, village);
rep.DataSources.Clear();
rep.DataSources.Add(dsRep);
//ReportViewer1.DocumentMapCollapsed = true;
//ReportViewer1.ShowPrintButton = true;
//rep.Render("PDF");
byte[] result = null;
result = rep.Render("PDF");
Response.ClearContent();
Response.AppendHeader("content-length", result.Length.ToString());
Response.ContentType = "application/pdf";
Response.BinaryWrite(result);
Response.Flush();
Response.Close();
rep.Refresh();
}
protected DataTable GetDataTable(string p,string d,string v)
{
SqlConnection con = new SqlConnection(System.Configuration.ConfigurationManager.ConnectionStrings["DBConnectionString"].ToString());
DataTable dt;
SqlDataAdapter da;
SqlCommand cmd;
string filter = "";
try
{
if (con.State == ConnectionState.Open)
{
con.Close();
}
con.Open();
cmd = new SqlCommand("select '" +p + "' as UserName, '"+d+"'Password,'"+ v+"' as category", con);
da = new SqlDataAdapter(cmd);
dt = new DataTable();
da.Fill(dt);
cmd.Dispose();
con.Close();
return dt;
}
catch (Exception ex)
{
return null;
}
}

Answer 1

The Render method does have an overload that takes one parameter in .NET 4.0, but not in previous versions.
You'll have to call the (String, String, out String, out String, out String, out String[], out Warning[]) overload as below.
string extension;
string encoding;
string mimeType;
string extension;
string[] streams;
Warning[] warnings;
result = rsExec.Render("PDF", null,
out extension, out encoding,
out mimeType, out streams, out warnings);