asp.net - Crystal Report Asking parameter again -

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dear working on asp .net application in using crystal report showing reports.

in application works fine including reports. real problem comes when start clicking on crystal report toolbar. if click on buttons on crystal report tool bar (export, next page ...etc.) asking parameters again. there way that crystal report viewer not ask parameter have given ?

i have given true property reuseparametervaluesonrefresh. passing parameters report document. 

reportdocument rd = new reportdocument();  rd.setparametervalue("@date", request["date"]);  crystalreportviewer1.reportsource = rd;

try change crystal report parameter type date string.


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