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我有一个表单，允许用户选择他们想要生成的报告。他们还可以选择条件，选择打印、预览、导出等。在用户做出选择并单击“生成”按钮后，我有一个类可以创建报表对象、加载报表、数据集，然后打印或导出那个报告。我创建了一个单独的表单来预览报告。当我将报表对象传递给预览表单时，我收到“无效的报表源”。报告打印和导出都很好，我只是无法预览报告。我不想在预览表单中复制代码，我希望我可以只传递报告对象。我的代码片段如下。有什么建议么？

public static class CrystalReportUtilities
{
    private static ReportDocument goReport {get; set;}
    private static string gsReportName { get; set; }
    private static string gsSqlString { get; set; }
    private static object[,] goParameters { get; set; }

    public static void generateReport(parameters...)
    {
      goReport = loadReport();
...
      goReport.SetDataSource(DataTable);
...
      previewReport();


    private static void previewReport()
    {
        CrystalReportPrintPreviewForm loReportPreview = new CrystalReportPrintPreviewForm(goReport);
        loReportPreview.ShowDialog();
    }


public partial class CrystalReportPrintPreviewForm : Form
{
    private ReportDocument goReport;

    public CrystalReportPrintPreviewForm(ReportDocument poReport)
    {
        InitializeComponent();

        goReport = poReport;
    }

    private void crystalReportViewer1_Load(object sender, EventArgs e)
    {
        try
        {
            if (goReport != null)
            {
                crystalReportViewer1.ReportSource = goReport;  // Receive "Invalid Report Source"
            }
        }
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1 回答 1

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Problem resolved. I am running on a Windows 7, 64 bit OS. I originally installed Crystal Reports for 64 bit Visual Studio 2010. It appears that you need both, the 64 bit and 32 bit version of the runtimes, with SP4.

于 2012-10-17T14:54:38.663 回答