C#:rdlc – 報表執行個體

//報表定義
ReportViewer reportViewer = new ReportViewer();
//報表資料來源
ReportDataSource datasource = null;

    //設定資料
    DataSet ds = null;  //請自行綁定資料

//指定報表範本地址
reportViewer.LocalReport.ReportPath = Server.MapPath("temp.rdlc");
//報表資料來源設定
datasource = new ReportDataSource("TshirtMugData_Tshirt", ds.Tables[0]);
// 報表參數
ReportParameter[] reportpara = new ReportParameter[2];
reportpara[0] = new ReportParameter("Date", Date);
reportViewer.LocalReport.SetParameters(reportpara);
reportViewer.Visible = true;
// 寫Excel檔案
byte[] bytes = reportViewer.LocalReport.Render("Excel", null, out strMimeType, out strEncoding, out strFileNameExtension, out strStreamIds, out warnings);
if (!System.IO.File.Exists(filepath + filename))
{
    using (System.IO.FileStream fs = new System.IO.FileStream(filepath + filename, System.IO.FileMode.Create))
    {
        //寫入檔案
        fs.Write(bytes, 0, bytes.Length);
    }
}