晶体报告按代码绑定 [英] crystal report binding by code

问题描述

如果已将xsd文件分配给rpt。现在我必须按代码设置数据源，但它也不起作用。它显示空白报告。我写了以下代码

if have assigned xsd file to rpt. now i have to set data source by code but its nor working. its showing blank report. i have written following code

<pre lang="vb">
Dim reportdocument As New ReportDocument

        Dim query As New StringBuilder
        Dim ds As New DataSet
.ToString, conn)
           da.Fill(ds)

           reportdocument.Load(Server.MapPath(&quot;~/Vehreport.rpt&quot;))


           reportdocument.SetDataSource(ds)


           CrystalReportViewer1.ReportSource = reportdocument
           CrystalReportViewer1.DataBind()


    CrystalReportViewer1.RefreshReport()</pre>

数据来自数据设置ds但报告显示为空白。是否有任何遗漏？

data is coming in dataset ds but report is coming blank.is any thing missing?

推荐答案

试试这个，我已将它用于rdlc&它工作正常：

Try this, i have used it for rdlc & it works fine:

ReportViewer1.Visible = true;
ReportViewer1.LocalReport.DataSources.Clear();
ReportViewer1.LocalReport.DataSources.Add(new ReportDataSource("dsRatingReport", dsRatingReport.Tables(0)));
ReportViewer1.LocalReport.Refresh();

使用Visual Studio 2010中的Crystal Reports生成报告 [ ^ ]

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