vb.net如何向水晶报表传递参数？
我设计了一个窗口，有两个datetimepicker，现想点击button1把这两时间分别传递给水晶报表的两个时间参数
我用CrystalReport1.Parameter_date1.CurrentValues=datetimerpicker1.value.date
出错说CrystalReport1.Parameter_date1.CurrentValues是ReadOnly
怎样把参数传过去
[解决办法]
Imports CrystalDecisions.CrystalReports.Engine
Imports CrystalDecisions.Shared
Public Sub ConfigureDiscreteParameter(ByVal Report As ReportDocument, ByVal Field As String, ByVal Value As Object)
Dim myParameterFields As ParameterFields = Report.ParameterFields
Dim myParameterField As ParameterField = myParameterFields(Field)
Dim myParameterDiscreteValue As ParameterDiscreteValue = New ParameterDiscreteValue()
myParameterDiscreteValue.Value = Value
myParameterField.CurrentValues.Add(myParameterDiscreteValue)
End Sub
Public Sub ConfigureRangeParameter(ByVal Report As ReportDocument, ByVal Field As String, ByVal ValueStart As Object, ByVal ValueEnd As Object)
Dim myParameterFields As ParameterFields = Report.ParameterFields
Dim myParameterField As ParameterField = myParameterFields(Field)
Dim myParameterRangeValue As ParameterRangeValue = New ParameterRangeValue()
myParameterRangeValue.StartValue = ValueStart
myParameterRangeValue.EndValue = ValueEnd
myParameterField.CurrentValues.Add(myParameterRangeValue)
End Sub
给你两个以前写好的函数吧，第一个是离散参数，第二个是范围参数。
