How do I pass paramters into a crystal Report in visual Studio 2012, windos Application

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I have a report which I want to pass a datetime parameter and display that parameter into the report. I have a code but then the field in the repost is still blank.

VB

Dim paramFields As New ParameterFields
               Dim paramField1 As New ParameterField
               Dim paramField2 As New ParameterField
               Dim discreteVal As New ParameterDiscreteValue


               discreteVal.Value = odDatumPicker.Value
               paramField1.ParameterFieldName = "@Datum"
               paramField1.CurrentValues.Add(discreteVal)
               paramFields.Add(paramField1)

    
               CrystalReportViewer1.ParameterFieldInfo = paramFields

Posted 29-Jul-14 22:13pm

Voley

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appoos · Answer 1 · 2014-07-30T00:10:00

You can use the below code to generate the report.

VB

Dim crReportDoc As New ReportDocument()
Dim crpConnectionInfo As New ConnectionInfo()
crReportDoc.Load(FilePath)
crpConnectionInfo.AllowCustomConnection = True
crpConnectionInfo.ServerName = [servername]
crpConnectionInfo.DatabaseName = [dbname]
crpConnectionInfo.UserID = [username]
crpConnectionInfo.Password = [password]

For Each tblCurrent In _crReportDoc.Database.Tables
    crpTableLogonInfo = tblCurrent.LogOnInfo
    crpTableLogonInfo.ConnectionInfo = crpConnectionInfo
    tblCurrent.ApplyLogOnInfo(crpTableLogonInfo)
Next
crReportDoc.VerifyDatabase()
crReportDoc.SetParameterValue("@Datum", odDatumPicker.Value)
CrystalReportViewer1.ReportSource = crReportDoc

Please change the ConnectionInfo