Unable to pass parameters to SSRS report in ASP.NET page - asp.net

Question

Hi I am getting an error in supplying parameters to an SSRS report deployed on server in ASP.NET page.
Please refer to the code below and let me know where is the issue?
ReportExecutionService rs = new ReportExecutionService();
string rptURL = System.Configuration.ConfigurationManager.AppSettings["rptURL"].ToString();
string rptPath = System.Configuration.ConfigurationManager.AppSettings["Page1SLScorecardReortForDownload"].ToString();
//Microsoft.Reporting.WebForms.ReportParameter[] paramlist = new Microsoft.Reporting.WebForms.ReportParameter[3];
//paramlist[0] = new Microsoft.Reporting.WebForms.ReportParameter("Week", "2013-05-03");
//paramlist[1] = new Microsoft.Reporting.WebForms.ReportParameter("year", "Fiscal Calendar 2013");
//paramlist[2] = new Microsoft.Reporting.WebForms.ReportParameter("Month", "Fiscal May, 2013");
ParameterValue[] paramlist = new ParameterValue[3];
//Microsoft.Reporting.WebForms.ReportParameter[] paramlist = new Microsoft.Reporting.WebForms.ReportParameter[3];
paramlist[0] = new ParameterValue();
paramlist[0].Name = "Week";
paramlist[0].Value = "2013-05-03";
paramlist[1] = new ParameterValue();
paramlist[1].Name = "year";
paramlist[1].Value = "Fiscal Calendar 2013";
paramlist[2] = new ParameterValue();
paramlist[2].Name = "Month";
paramlist[2].Value = "Fiscal May, 2013";
//ReportViewer1.ServerReport.SetParameters(paramlist);
rs.Credentials = System.Net.CredentialCache.DefaultCredentials;
rs.Url = rptURL;
byte[] result = null;
string reportPath = rptPath;
string format = "EXCEL";
string historyID = null;
string devInfo = #"<DeviceInfo><Toolbar>False</Toolbar></DeviceInfo>";
string encoding;
string mimeType;
string extension;
ReportingWS.Warning[] warnings = null;
string[] streamIDs = null;
ReportingWS.ExecutionInfo execInfo = new ReportingWS.ExecutionInfo();
ReportingWS.ExecutionHeader execHeader = new ReportingWS.ExecutionHeader();
rs.ExecutionHeaderValue = execHeader;
execInfo = rs.LoadReport(reportPath, historyID);
rs.SetExecutionParameters(paramlist, "en-us");
String SessionId = rs.ExecutionHeaderValue.ExecutionID;
try
{
result = rs.Render(format, devInfo, out extension, out encoding, out mimeType, out warnings, out streamIDs);
execInfo = rs.GetExecutionInfo();
}
catch (Exception ex)
{
//AlnErrorHandler.HandleError(ex);
}

Answer 1

parameters.Add(new ReportParameter("FyId", Convert.ToInt16(objSession.FyId).ToString()));
parameters.Add(new ReportParameter("AccountGroupId", cmbAccountGroup.SelectedValue));
parameters.Add(new ReportParameter("LedgerId", cmbLedgerId.SelectedValue));
rptvwMain.ServerReport.SetParameters(parameters);
Pass Parameters like this....