How to filter data in crystal report by manipulating user inputs from web app interface?

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I am taking the inputs by user in web application interface but I am not saving these values in db... I want to pass these values to parameters field of crystal report through controller or report generator get-report() method. for-example user inputs date-range and its manipulates all date inputs in controller method and displays filtered data on crystal report.

What I have tried:

i have formatted crystal report accordingly... filters or parameter fields are working fine for report viewer but i am not getting anyway to get user input and set-parameters in controller method accordingly...
any help ?????

Posted 18-Sep-17 4:38am

Sarah kevin

Updated 19-Sep-17 15:45pm

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an0ther1 · Answer 1 · 2017-09-19T15:45:00

Hi Sarah,

There is many examples available, but the method I use that works is;

C#

if(rptDoc.DataDefinition.ParameterFields.Count > 0)
{
    foreach(ParameterFieldDefinition crDef in rptDoc.DataDefinition.ParameterFields)
    {
    // Check for empty report name
    // Sub Reports will have a value, Main Report does not
    // Sub Report Parameters are passed by the Main Report
        if(crDef.ReportName == string.Empty)
        {
            object objValue = "What ever value I want to use";
            rptDoc.SetParameterValue(crDef.ParameterFieldName, objValue);
        }
    }
}

You can then run the report & show in a WebViewer or export to a stream and return as a PDF/Word/Excel etc

Kind Regards