The base class includes the field 'ReportViewer1', but its type (Microsoft.Reporting.WebForms.ReportViewer) is not compatible with the type of control (Microsoft.Reporting.WebForms.ReportViewer).

Question

User607340303 posted

I've tried several ways, but I didn't succeed.Help me please.

I want to use reportviewer in .net 4.0. I use VS 2017 and my server 2012r2 .

Best Regards,

Nattiko

Answer 1

User839733648 posted

Hi nattikomatti,

You could try to remove the reference dll and any assemblies entry of ReportViewer from web.config.

Then add new reference of ReportViewer and rebuild the project.

Or you may try to compare between <%@ Register Assembly="Microsoft.ReportViewer.WebForms, Version=11.0.0.0 and the version that is written in the reference you added in the web.config file.

If there is a difference in version of the Microsoft.ReportViewer.WebForms then change as per the version installed in the server.

For more, you could refer to : https://stackoverflow.com/a/30173426/10487763

Best Regards,

Jenifer

Answer 2

User-1038772411 posted

Hello, nattikomatti

you can try below can hope you will get your solution from their.

https://docs.microsoft.com/en-us/sql/reporting-services/application-integration/integrating-reporting-services-using-reportviewer-controls-get-started?view=sql-server-2017

Thanks.

Answer 3

User607340303 posted

I try it. But it not work.

thank you sir.

Answer 4

User607340303 posted

if user version 15.0.0 it work.But use version 10 or 11 it not work.

thank you sir.

Now I do mind using version 15 and will use a new server that supports .netframework 4.6.1.

Answer 5

User-101155366 posted

I also tried to do an example based on this document but it didn't work.