Error in using report viewer in visual studio 2012 in design mode

Question

I'm using visual studio 2012 to develop a MVC application. I have added an ascx page to my project to put the report viewer in. When I drag and drop the ReportViewer component from toolbox in the page, It doesn't show the ReportViewer correctly and shows this error on it:

Failed to create designer 'Microsoft.Reporting.WebForms.ReportViewer, Microsoft.Reporting.WebForms version 10.0.0.0, Culture=natural, PublicKeyToken=b03f5f7f11d50a3a'

I have also added Microsoft.ReportViewer.WebForms assembly to the project References. Is there anything wrong with reportviewer in Visual Studio 2012? Any help is appreciated in advance.

Solution 1

SOLVED!

1. I downloaded and installed Report Viewer 2010 version.
2. Then I added Microsoft.ReportViewer.WebForms.DLL assembly file from C:\Windows\assembly\GAC_MSIL\Microsoft.ReportViewer.WebForms\11.0.0.0__89845dcd8080cc91.
3. And finally I added the following line to the .ascx file. <%@ Register assembly="Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91" namespace="Microsoft.Reporting.WebForms" tagprefix="rsweb" %>

Solution 2

See in solution explore and explore the Reference link and remove ReportViewer Forms and WindowReportViewer then simple add the report viewer from toolbox, its works for me

Comments

[Asad Mukhtar]

I didn`t find any file with the extension of .ascx

[Beginner]

ASP.Net web forms have three types of files when your programming language is C#. .ascx, .ascx.cs and .ascx.designer.cs.