How do I pass a parameter value to Crystal report in vb.net 2008.

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VB

Dim paramFields As New ParameterFields
Dim paramField As New ParameterField
Dim discreteVal As New ParameterDiscreteValue
Dim cno As String

'PASSING A SECOND PARAMETER (DISCRETE VALUE) ***
paramField = New ParameterField
paramField.ParameterFieldName = "@LocationID"
discreteVal = New ParameterDiscreteValue
discreteVal.Value = "CASUALTY"
paramField.CurrentValues.Add(discreteVal)
paramFields.Add(paramField)

CrystalReportViewer1.ParameterFieldInfo = paramFields

When l run above code, its giving me following error:

"The parameter is incorrect"

Posted 21-Apr-15 0:27am

Member 11622577

Updated 21-Apr-15 0:52am

Tomas Takac

v2

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Member 11622577 · Answer 1 · 2015-04-23T22:45:00

Funny indeed. The above code is correct. The problem is with Access database. If the query parameter has [] then it gives this error, however if the MS Access parameter has no [], then it does not give this error message. e.g.

SELECT * FROM users WHERE username = [@username] ---Gives this error, but
SELECT * FROM users WHERE username = @username ---Prints results in report