Question

如何在 asp. net C# 中将文本框值作为晶体报告参数通过?

I want example which shows steps to passparamter I have tried many examples but no output.. I want as in below link http://csharp.net-informations.com/crystal-reports/csharp-crystal-reports-string-parameter.htm But no data is displaying

Pls 帮助

Answer 1

我希望这将有助于:

ReportDocument cryReportDocument = .......;
cryReportDocument.SetDatabaseLogon("userName", "password");
cryReportDocument.SetParameterValue("parameterName", yourTextBoxName.Text);
CrystalReportViewer1.ReportSource = cryReportDocument;

Answer 2

尝试此代码

  ReportDocument reportDocument = new ReportDocument();

    ParameterFields paramFields = new ParameterFields();


    ParameterField paramField = new ParameterField();
    ParameterDiscreteValue paramDiscreteValue = new ParameterDiscreteValue();
    paramField.Name = "@CustomerName";
    paramDiscreteValue.Value = TextBox1.Text.ToString();
    paramField.CurrentValues.Add(paramDiscreteValue);
    paramFields.Add(paramField);


    CrystalReportViewer1.ParameterFieldInfo = paramFields;
    reportDocument.Load(Server.MapPath("CrystalReport.rpt"));
    CrystalReportViewer1.ReportSource = reportDocument;

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