ReportViewer动态加载报表文件

/**//*页面上放置一个ReportViewer1和两个按钮ButtonBing，ButtonXian点不同的按钮ReportViewer1显示不同的报表文件（Reportxian.rdlc和Reportbing.rdlc）*/

protected void ButtonXian_Click(object sender, EventArgs e)
    ...{
      

        ControlCollection coll = ReportViewer1.Parent.Controls;
        int oldIndex = coll.IndexOf(ReportViewer1);
        ReportViewer newViewer = new ReportViewer();
        coll.AddAt(oldIndex, newViewer);
        coll.Remove(ReportViewer1);

        newViewer.LocalReport.DataSources.Clear();

        newViewer.LocalReport.ReportPath = MapPath("Reportxian.rdlc");
        newViewer.LocalReport.ReportEmbeddedResource = "Reportxian.rdlc";
        ReportDataSource rpt = new ReportDataSource("DataSet1_ShowOneFruit", ds.Tables["table"]);
        newViewer.LocalReport.DataSources.Add(rpt);
        newViewer.LocalReport.Refresh();


    }
    protected void ButtonBing_Click(object sender, EventArgs e)
    ...{

       
        ControlCollection coll = ReportViewer1.Parent.Controls;
        int oldIndex = coll.IndexOf(ReportViewer1);
        ReportViewer newViewer = new ReportViewer();
        coll.AddAt(oldIndex, newViewer);
        coll.Remove(ReportViewer1);


        newViewer.LocalReport.DataSources.Clear();

        newViewer.LocalReport.ReportPath = MapPath("Reportbing.rdlc");
        newViewer.LocalReport.ReportEmbeddedResource = "Reportbing.rdlc";
        ReportDataSource rpt = new ReportDataSource("DataSet1_ShowOneFruit", ds.Tables["table2"]);

    

        newViewer.LocalReport.DataSources.Add(rpt);


        newViewer.LocalReport.Refresh();
       
        
    }