pass a value to report viewer

//Step 1

MyReportViewer.ProcessingMode = ProcessingMode.Local;

MyReportViewer.LocalReport.ReportPath = "AccountReport.rdlc";

//Step 2

ReportDataSource ReportSource = new ReportDataSource();

ReportSource.Name = "DataSet1_MaintenanceDS";

ReportSource.Value = GetAccounts();//Will Return DataTable

MyReportViewer.LocalReport.DataSources.Clear();

//Step 3

ReportParameter CustomParamete1 = new ReportParameter("CustomParameter1", CustomVaue1);

ReportParameter CustomParamete2 = new ReportParameter("CustomParameter2", CustomVaue2);

MyReportViewer.LocalReport.SetParameters(new ReportParameter[] { CustomParamete1, CustomParamete2 });

//Step 4

MyReportViewer.LocalReport.DataSources.Add(ReportSource);

MyReportViewer.LocalReport.Refresh();

Hope it helped.

Mark as answer if it is. :)

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