水晶报表 - 传递 DateRange 参数 [英] Crystal Report - Pass DateRange Parameter
问题描述
使用 CR 相对较新.最近一直在将许多以前通过 vbscripts 执行的旧报告转换为在 vb.net 上运行.
Relatively new to working with CR. Have lately been converting a lot of old reports that were previously executed via vbscripts to run with vb.net.
我有一份无法处理的特定报告.为了运行,它需要一个存储在名为DateRange"的参数字段中的日期范围
I have a particular report I can't get working. In order to run, it expects a date range that it stores in a parameter field called "DateRange"
在调用此报告并导出它的旧 vbscript 中,传递此日期范围参数的代码是:
In the old vbscript that called this report and exported it, the code to pass this daterange parameter was:
Set crParms = CrystalReport.ParameterFields
crParms.Item(1).AddCurrentRange CDate(StartDate), CDate(EndDate), 3
谁能帮我看看这段代码在 vb.net 中应该是什么样子?我有点困惑,因为报告中的DateRange"参数是一个变量.那么它是期待一个日期的集合还是什么?
Can anybody help me out with what this code should look like in vb.net? I'm a little confused as in the report the "DateRange" parameter is a single variable. So is it expecting a collection of dates or something?
我只是创建一个简单的控制台项目来调用报告、传递日期范围并导出报告.我已经能够找出导出报告的代码,而且效果很好.我只需要弄清楚如何将我的日期范围传递到报告中.
I'm just creating a simple console project to call the report, pass the date range, and export the report. I have been able to figure out the code to export the report, and it works great. I just need to figure out how to pass my date range into the report.
谢谢!
推荐答案
如果其他人需要帮助将两个日期从 VB.NET 传递到 Crystal 报表中的单个 DateRange 参数,这最终对我有用:
Should anyone else need help passing two dates from VB.NET to a single DateRange parameter in a Crystal report, this is what ended up working for me:
Const PARAMETER_FIELD_NAME As String = "DateRange"
Dim startDate as Date
Dim endDate as Date
<other code>
Dim crParameterFieldDefinitions As ParameterFieldDefinitions
Dim crParameterFieldDefinition As ParameterFieldDefinition
Dim crParameterValues As New ParameterValues
Dim crParameterRangeValue As New ParameterRangeValue
crParameterRangeValue.StartValue = startDate
crParameterRangeValue.EndValue = endDate
crParameterFieldDefinitions = cryReport.DataDefinition.ParameterFields
crParameterFieldDefinition = crParameterFieldDefinitions.Item(PARAMETER_FIELD_NAME)
crParameterValues = crParameterFieldDefinition.CurrentValues
crParameterValues.Clear()
crParameterValues.Add(crParameterRangeValue)
crParameterFieldDefinition.ApplyCurrentValues(crParameterValues)
<other code>
我确实发现 本教程在编写上面对我有用的代码.
I did find this tutorial to be extremely helpful in writing the code that worked for me above.
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