passing parameters to crystal report through vb.net 2010

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I have a bit of code for adding parameter values to a report as below

VB

Dim pFields As New ParameterFields()
 Dim pField As New ParameterField()
  Dim disVal As New ParameterDiscreteValue()
  Dim rptDoc As New ReportDocument()

   pField.ParameterFieldName ="ToDate"
       disVal.Value = frmReport.DTPTo.Value
       pField.CurrentValues.Add(disVal)
       pFields.Add(pField)

       pField.ParameterFieldName = "FromDate"
       disVal.Value = frmReport.DTPFrom.Value
       pField.CurrentValues.Add(disVal)
       pFields.Add(pField)

CrystalReportViewer1.ParameterFieldInfo = pFields

The problem is when I run the code report only gets last parameter "fromdate" only. It still ask me to enter "todate" manually. I defined "fromdate" and "todate" as date type in the report. Its only getting the last parameter I send

Anybody has got any ideas.

Posted 6-Sep-12 1:51am

Reji Ab

Updated 6-Sep-12 6:35am

Sandeep Mewara

v4

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dimpledevani 7-Sep-12 5:06am

Thats because you are over riding the Parameter field value.For each parameter you should have different ParameterField fields.e.g
pField1.ParameterFieldName = "FromDate"
disVal.Value = frmReport.DTPFrom.Value
pField1.CurrentValues.Add(disVal)
pFields.Add(pField1)

pField2.ParameterFieldName = "FromDate"
disVal.Value = frmReport.DTPFrom.Value
pField2.CurrentValues.Add(disVal)
pFields.Add(pField2)

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Savalia Manoj M · Answer 1 · 2012-09-06T23:00:00

Hi Reji Ab,

Please Try this.

ParameterDiscreteValue objDiscreteValue;
ParameterField objParameterField;
//Set value for first parameter
objDiscreteValue = new ParameterDiscreteValue();
objDiscreteValue.Value = frmReport.DTPTo.Value;
objParameterField = CrystalReportViewer1.ParameterFieldInfo["ToDate"];
objParameterField.CurrentValues.Add(objDiscreteValue);
CrystalReportViewer1.ParameterFieldInfo.Add(objParameterField);
//Set value for second parameter
objParameterField = CrystalReportViewer1.ParameterFieldInfo["FromDate"];
objDiscreteValue = new ParameterDiscreteValue();
objDiscreteValue.Value = frmReport.DTPFrom.Value;
objParameterField.CurrentValues.Add(objDiscreteValue);
CrystalReportViewer1.ParameterFieldInfo.Add(objParameterField);