Hi, All:

I have a solution in Visual Studio 2012 (compiled for .NET 4.0) that requires the Telerik RadScheduler and a few other RadControls (AutoCompleteBox, RadTreeView, RadTimePicker, and a few others). Because we have custom event handlers for these components, we must add references within our project to Telerik.Web.UI and Telerik.Web.UI.Skins.

This solution also requires reports created using the Microsoft Report Viewer. If we try to run the Report Wizard to generate the report template, a dialog box titled Microsoft Report Designer displays the message "Object reference not set to an instance of an object". To get around this, we have tried adding an RDLC file and then creating a Dataset that points to a business object that returns the report's collection of data. Unfortunately, this also does not work in that the business objects available within the project do not display in the Dataset drop-down within the Dataset Properties dialog accessed via Report Data for the RDLC file.

When I remove the above two references, these issues disappear, but break the code associated with the RadScheduler and other controls arlready mentioned.

Has anyone else experienced this issue? If so, please provide information about how you resolved, if you did resolve. Thanks in advance for any information you can provide.

Hello,

 
Thank you for reporting this issue.It sound quite unusual indeed and we are not aware of it so far. We will need some more time to inspect it deeper at our side and will be back as soon as we have more information.

Regards,
Plamen
Telerik

Hello,

 
We have been inspecting the issue in all kind of scenarios but unfortunately  could not replicate the described behavior at our side.

Regards,
Plamen
Telerik

I also face almost the same problem I am working on the VS 2013 ASP.net , C# project .NET Framework 4.5 with SQL Server 2012 and I test when I add Telerik.web.ui dll in my project reference after that I can not add RDLC but I am using some Telerik controls like Radgrid, RadWindow,RadDatePicker I need to use Telerik.Web.UI dll but I couldn't add RDLC files in my project.

Hi Ahmer,

We have successfully replicated the issue and a possible solution is described in the last section in the bottom of this help article.

Hope this will explain the issue.

Regards,
Plamen
Telerik