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ReportViewer error in MVC Project

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Ranjit asked on 01 Oct 2012, 08:39 PM

Hello,

Currently we are attempting to use the Web Report Viewer in our MVC4 project, and have run into some issues running on the IE9 Browser. When using Chrome or another browser, the viewer renders the report with no issues. Currently the aspx partial view that holds the viewer is being served up by a regular MVC controller.

Here is the error I receive when running the viewer in IE:

Unhandled exception at line 561, column 13 in script block
0x800a138f - Microsoft JScript runtime error: Unable to get value of the property 'ErrorMessage': object is null or undefined

I've searched extensively for a solution to this issue with no luck... someone from the Telerik team please help!

I've also put my code snippets below:

this is coming from the ReportViewer javascript code, where it makes the function call and contentWindow is null:

ReportViewer.prototype.GetError = function

()

{

var paramsArea = document.getElementById(this

.paramsFrameID);

var msg = ""

if

(paramsArea){ msg = paramsArea.contentWindow.ErrorMessage; }

if (!msg) { var reportFrame = document.getElementById(this

.reportFrameID);

if

(reportFrame) { msg = reportFrame.contentWindow.ErrorMessage; }

return this

.LocalizeMessage(msg);

}

Here is the code for my ReportViewer.aspx:

<%@ Page Language="C#" Inherits="System.Web.Mvc.ViewPage<dynamic>"

%>

<%@ Register Assembly=

"Telerik.ReportViewer.WebForms, Version=6.1.12.820, Culture=neutral, PublicKeyToken=a9d7983dfcc261be" Namespace="Telerik.ReportViewer.WebForms" TagPrefix="telerik"

%>

<%@ Register Assembly=

"Telerik.Reporting, Version=6.1.12.820, Culture=neutral, PublicKeyToken=a9d7983dfcc261be" Namespace="Telerik.Reporting" TagPrefix="telerik" %><br><%@ Import Namespace="System.Web.Mvc"

%>

<%@ Import Namespace=

"System.Data"

%>

<head runat=

"server"

>

   <title></title>

</head>  



<form id=

"main" runat="server" method="post" action="#"

>

   <telerik:ReportViewer ID=

"ReportViewer1" runat="server" style="width: 790px; height: 800px;"

>

   </telerik:ReportViewer>

</form>

<script runat="server">

 public override void VerifyRenderingInServerForm(Control control)

 {

   //base.VerifyRenderingInServerForm(control);

   // to avoid the server form (<form id="Form2" runat="server">) requirement

 } 



 protected override void OnLoad(EventArgs e)

 {

    base.OnLoad(e);

    ReportViewer1.ReportSource = new QuoteRpt();

    var name = "QuoteReport"

    ReportViewer1.ReportSource.Parameters.Add(new Telerik.Reporting.Parameter("QuoteId", ViewBag.QuoteID));

 }

</script>

2 Answers, 1 is accepted

answered on 04 Oct 2012, 04:38 PM

Hello Ranjit,

It will be best if you are able to send us a runnable sample that exhibits the issue so that we are able to reproduce it at our end - that way we will be able to identify the culprit faster and advise you more accordingly. In general there is nothing wrong with the code snippet you have sent us, but other parts of your application may cause the issue as we are not able to reproduce it locally.

You can also check with a tool like Fiddler to see if all the resources needed for the proper work of the Report Viewer get to the client.

Regards,
IvanY
the Telerik team

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