SSRS：基础连接已关闭

Question

查看SSRS时遇到问题。

当我调用reportViewer1.ServerReport.SetParameters(parm);来查看C＃win-form progarm中的报告时，会发生错误添加行GenerateReport()。

  

错误：基础连接已关闭。接收时发生意外错误。

通过I.E地址栏上的// local_host / ReportServer查看报告时，这很好。

我在使用MS Server 2008，SQL Server 2008 感谢。

public void GenerateReport(DateTime fromdate, DateTime todate, float dauky, float psls, DateTime kybc)
{
    ReportParameter[] parm = new ReportParameter[5];
    parm[0] = new ReportParameter("fromdate", fromdate.ToShortDateString());
    parm[1] = new ReportParameter("todate", todate.ToShortDateString());
    parm[2] = new ReportParameter("kybc", kybc.ToString());
    parm[3] = new ReportParameter("psls", psls.ToString());
    parm[4] = new ReportParameter("dauky", dauky.ToString());

    this.reportViewer1.ServerReport.ReportServerCredentials.NetworkCredentials = new System.Net.NetworkCredential("username", "pass", "domain");
    reportViewer1.ShowCredentialPrompts = true;

    reportViewer1.ServerReport.ReportServerUrl = new System.Uri("http://localhost:80/ReportServer");


    reportViewer1.ServerReport.ReportPath = "/Report Project1/TEST";
    reportViewer1.ProcessingMode = Microsoft.Reporting.WinForms.ProcessingMode.Remote;
    reportViewer1.ServerReport.SetParameters(parm);  //error occurs
    reportViewer1.ServerReport.Refresh();
}