报告服务2005 c#报告查看器路径中的非法字符

我有一个在VS2010中设计的报告服务报告。当使用"前端"报表查看器和sqldatasource时，报表运行良好。然而，我正试图通过"背后的代码"改变报告的数据源和参数。当我运行相同的报告时，它会抛出这个错误"路径中的非法字符"。到目前为止，我还没有找到原因。下面是…的代码

感谢所有的帮助!!

string strConnString = ConfigurationManager.ConnectionStrings["WISCConnectionString"].ToString();
    protected void Page_Load(object sender, EventArgs e)
    {

      getReport();


    }
    protected void getReport()
    {
        DataSet ds = getData();
        ReportDataSource rds = new ReportDataSource();
        rds.Name = "ParameterCorpBillDate";
        rds.Value = ds.Tables["ParameterCorpBillDate"];
        rds.DataSourceId = "SqlDataSource1";
        ReportViewer1.LocalReport.ReportPath = "Reports'rptPeriodAnalysisCorpBillDate.rdlc";
        ReportViewer1.LocalReport.DataSources.Clear();
        ReportViewer1.LocalReport.DataSources.Add(rds);

        ReportViewer1.LocalReport.Refresh();
        ReportViewer1.Visible = true;
    }

    private DataSet getData()
    {
        DataSet ds = new DataSet();

        SqlConnection sqlConnection = new System.Data.SqlClient.SqlConnection(strConnString);
        SqlDataAdapter dataAdapter = new System.Data.SqlClient.SqlDataAdapter();
        SqlCommand select = new System.Data.SqlClient.SqlCommand("uspWRPeriodAnalysisCORP_BillDate_noparam");
        select.CommandType = CommandType.StoredProcedure;
        select.Connection = sqlConnection;
        //select.Parameters.Add("@custid", SqlDbType.VarChar).Value = "SON";
        //select.Parameters.AddWithValue("@period_startdt", SqlDbType.VarChar).Value = "01/01/2011";
        //select.Parameters.AddWithValue("@period_ENDdt", SqlDbType.VarChar).Value = "12/31/2011";
        dataAdapter.SelectCommand = select;
        dataAdapter.Fill(ds, "ParameterCorpBillDate");
        return ds;
    }