如何在Crystal报表中创建参数 [英] how to create parameters in Crystal report

问题描述

你好，
如何在运行时将参数值传递给Crystal报表，以便根据指定的参数获取数据.
谢谢

hello,
how do i pass parameter value to a crystal report at runtime in order to fetch data based on the parameter specified.
thank you

推荐答案

尝试类似的方法:

Try something like:

Dim cryRpt As New ReportDocument
cryRpt.Load("PUT CRYSTAL REPORT PATH HERE\CrystalReport1.rpt")

Dim crParameterFieldDefinitions As ParameterFieldDefinitions
Dim crParameterFieldDefinition As ParameterFieldDefinition
Dim crParameterValues As New ParameterValues
Dim crParameterDiscreteValue As New ParameterDiscreteValue

crParameterDiscreteValue.Value = TextBox1.Text
crParameterFieldDefinitions = cryRpt.DataDefinition.ParameterFields
crParameterFieldDefinition = crParameterFieldDefinitions.Item("Customername")
crParameterValues = crParameterFieldDefinition.CurrentValues

crParameterValues.Clear()
crParameterValues.Add(crParameterDiscreteValue)
crParameterFieldDefinition.ApplyCurrentValues(crParameterValues)

CrystalReportViewer1.ReportSource = cryRpt
CrystalReportViewer1.Refresh()

在这里，看看这些:
VB.NET Crystal Reports字符串参数 [使用vb.Net将参数从TextBox传递到Crystal报表 [ ^ ]

Here, have a look at these:
VB.NET Crystal Reports String parameter [^]
For passing parameter from TextBox to Crystal report Using vb.Net[^]

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