vb.net - Error Rendering report with multiple parameters -


i have project trying fix created person no longer works our company. can me figure out why getting this

localprocessingexception occurred

error? below code. dies on response.buffer = true. of parameters have data in them. seems though 1 of report generation variables doesn't have data in them. assuming 1 of these

  • warnings
  • streamids
  • mimetype
  • encoding
  • format
  • extension
  • devinfo

any great. have tried lot of other suggestions on site no avail. , said first code i've gotten into. stack trace @ end.

//report generation variables dim warnings warning() = nothing dim streamids string() = nothing dim mimetype string = "" dim encoding string = "" dim format string = "pdf" dim extension string = "" dim devinfo string = "<deviceinfo><toolbar>true</toolbar></deviceinfo>" dim bytes byte() = nothing dim lr new localreport  dim leadstable datatable = retrievepersons(casenum.text) dim suppltable datatable = ctype(session("persontable"), datatable) dim persontable datatable = combinepersons(leadstable, suppltable)  //if there data ... if persontable.rows.count > 0  //assume best .... ctlnotice.visible = false ctlnotice.text = ""  //retrieve charges dim chargestable datatable = retrievecharges(casenum.text) dim chargestable datatable = ctype(session("chargetable"), datatable) dim employeetable datatable = retrieveemployee() session("employeetable") = employeetable  //make sure there charges added if chargestable.rows.count = 0     ctlnotice.visible = true     ctlnotice.text = "there no charges.  please add them first." else     lr.reportembeddedresource = "crform.rdlc" lr.datasources.add(new reportdatasource("acrdataset_datatable1", persontable))  //charges charge subreport lr.datasources.add(new reportdatasource("charges02_chargestable", chargestable))  //employee specific information lr.datasources.add(new reportdatasource("employee2", employeetable))  //add datasource update subreport addhandler lr.subreportprocessing, addressof subreportprocessingeventhandler lr.setparameters(myparam) deviceinfo = "<deviceinfo><outputformat>pdf</outputformat></deviceinfo>"  try     bytes = lr.render(format, devinfo, extension, encoding, mimetype, streamids, warnings)     response.buffer = true     response.clear()     response.contenttype = mimetype     response.addheader("content-disposition", "attachment; filename=chargingrequest_" + cleancasenum(casenum.text) + ".pdf")     response.binarywrite(bytes)     response.flush()     session("localreport") = bytes     catch exn exception     ctlnotice.text = "call support!.  can't create report! " & exn.message     ctlnotice.visible = true end try

stack trace

at microsoft.reporting.webforms.localreport.internalrender(string format, boolean allowinternalrenderers, string deviceinfo, pagecountmode pagecountmode, createandregisterstream createstreamcallback, warning[]& warnings) @ microsoft.reporting.webforms.localreport.internalrender(string format, boolean allowinternalrenderers, string deviceinfo, pagecountmode pagecountmode, string& mimetype, string& encoding, string& filenameextension, string[]& streams, warning[]& warnings) @ microsoft.reporting.webforms.localreport.render(string format, string deviceinfo, pagecountmode pagecountmode, string& mimetype, string& encoding, string& filenameextension, string[]& streams, warning[]& warnings) @ microsoft.reporting.webforms.report.render(string format, string deviceinfo, string& mimetype, string& encoding, string& filenameextension, string[]& streams, warning[]& warnings) @ chargingrequest._default.btnprint_click(object sender, eventargs e) in h:\visual studio 2010\chargingrequest\chargingrequest\chargereq.aspx.vb:line 301`


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