Looks like SSRS ReportViewer control. You have 2 options:
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If you’re using default SSRS ReportViewer.aspx you can pass
parameter through the URL, like that:http:///ReportServer/Pages/ReportViewer.aspx?PathToReport&rs:Command=Render&ExamYear=2013
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If you’re using ReportViewer control directly, pass parameter in the
codebehind:ReportParameter examYearParam = new ReportParameter(“ExamYear”, 2013);
reportViewer1.ServerReport.SetParameters(examYearParam);