4

我正在为在 ReportViewer 控件中显示的报告设置参数，并且参数设置正确，并且报告使用正确的参数运行，但是在 ReportViewer 顶部提供报告条件的实际控件不是选择。为什么没有在标准中选择正确的项目，即使报表按照我设置的标准正确运行？

ReportParameter month = new ReportParameter("month", "September 2011");
SsrsReportInfo reportInfo = new SsrsReportInfo("Summary", "http://server/ReportServer/", "/MyFolder/Summary", month);

this.reportViewer1.ServerReport.ReportPath = reportInfo.ReportPath;
this.reportViewer1.ServerReport.ReportServerUrl = new Uri(reportInfo.ReportServerUrl);

if (reportInfo.Parameters != null)
{
    this.reportViewer1.ServerReport.SetParameters(reportInfo.Parameters);
}

this.reportViewer1.RefreshReport();

这是 reportInfo 类的代码：

/// <summary>
/// SSRS report information for report viewer.
/// </summary>
public class SsrsReportInfo
{
    /// <summary>
    /// Initializes a new instance of the <see cref="SsrsReportInfo"/> class.
    /// </summary>
    /// <param name="reportName">Name of the report.</param>
    /// <param name="reportServerUrl">The report server URL.</param>
    /// <param name="reportPath">The report path.</param>
    public SsrsReportInfo(string reportName, string reportServerUrl, string reportPath)
        : this(reportName, reportServerUrl, reportPath, null)
    {            
    }

    /// <summary>
    /// Initializes a new instance of the <see cref="SsrsReportInfo"/> class.
    /// </summary>
    /// <param name="reportName">Name of the report.</param>
    /// <param name="reportServerUrl">The report server URL.</param>
    /// <param name="reportPath">The report path.</param>
    /// <param name="reportParameters">The report parameters.</param>
    public SsrsReportInfo(string reportName, string reportServerUrl, string reportPath, params ReportParameter[] reportParameters)
    {
        this.ReportName = reportName;
        this.ReportServerUrl = reportServerUrl;
        this.ReportPath = reportPath;
        this.Parameters = reportParameters;
    }

    /// <summary>
    /// Gets or sets the name of the report.
    /// </summary>
    /// <value>The name of the report.</value>
    public string ReportName
    {
        get;
        set;
    }

    /// <summary>
    /// Gets or sets the report server URL.
    /// </summary>
    /// <value>The report server URL.</value>
    public string ReportServerUrl
    {
        get;
        set;
    }

    /// <summary>
    /// Gets or sets the report path.
    /// </summary>
    /// <value>The report path.</value>
    public string ReportPath
    {
        get;
        set;
    }

    /// <summary>
    /// Gets or sets the parameters.
    /// </summary>
    /// <value>The parameters.</value>
    public ReportParameter[] Parameters
    {
        get;
        set;
    }
}

谢谢，

标记

4

1 回答 1

3

我已经弄清楚了这里的问题。我在 Form 构造函数中设置了路径、url、参数和刷新报告的代码。我将它移到 Form.Load 事件中，现在它工作正常。报告仍然可以正常运行，但现在参数也在 ReportViewer 顶部的标准部分中正确设置。

我在这里显示了相同的用法：http ://technet.microsoft.com/es-es/library/aa337089(SQL.90).aspx ，但是注意到他们在 Form.Load 事件中做到了，我试过了，并且成功了。我也可以在 ReportViewer.Load 事件中执行此操作，原因可能是在设置值之前尚未在屏幕上绘制控件。

于 2011-09-09T14:21:23.927 回答