我应该在按钮事件中写些什么以显示两个日期之间的报告?

问题描述

我知道如何通过一个参数显示记录.但是我应该在按钮事件中写些什么，以按两个参数显示记录?我创建了两个参数&我在公式工作室中将其写成{asst.dt} = {?fdt}和{asst.dt} = {?ldt}.现在我遇到了问题！我的表单中有一个带有两个文本框和一个报表查看器的按钮.在我写下面的代码之前.那我现在应该写什么?请帮帮我.

代码(我用它通过一个参数显示报表，其中表单有一个文本框，一个按钮和一个报表查看器).

I know how to show record by one parameter. But what should I write there in my button event to show record by two parameter? I have created two parameter & I have written it {asst.dt}= {?fdt} and {asst.dt} = {?ldt} there in formula workshop. Now I got a problem! I have a button there in my form with two text boxes with one report viewer. Before I had written following code. So what should I write now? Please help me.

Code(I have used it to show report by one parameter where form had one text box one button & one report viewer).

Code : Imports CrystalDecisions.CrystalReports.Engine
Imports CrystalDecisions.Shared
Public Class Form6
Inherits System.Windows.Forms.Form


Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

Dim cryRpt As New ReportDocument
cryRpt.Load(Application.StartupPath \CrystalReport5.rpt")
CrystalReportViewer1.ReportSource = cryRpt
CrystalReportViewer1.Refresh()

Dim cryRpt As New ReportDocument
cryRpt.Load(Application.StartupPath \CrystalReport5.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
crParameterValues = crParameterFieldDefinition.CurrentValues

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

CrystalReportViewer1.ReportSource = cryRpt
CrystalReportViewer1.Refresh()
cryRpt.RecordSelectionFormula = {Button1}= TextBox1.Text
End Sub

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