Telerik Designer (x86) Opening a DLL

[Brad]

I am trying to open an old Telerik 4 report DLL created in C# some 10 years ago. I am guessing the dll is circa Visual Studio 2010 or earlier with the Visual Studio Telerik designer of it's time. The report runs fine, but I am trying to upgrade it to the latest Telerik version. I was hoping to open the DLL in Designer (x86) and save as a .trdx and then open in Telerik Designer (64 bit) and save out to dll or something. When I try to open the dll, is get this error. What can I do?

[Todor]

Hi Brad,

During the years our API may change, and when the versions are far apart, the newer version of our designer will not recognize the types/methods/properties that have been deprecated. Generally, we keep the obsolete types for at least one year after the breaking change, and a very old project/report can be upgraded as explained in How to Upgrade an old project to the latest Telerik Reporting version KB article.

In the 4th version, there wasn't a Standalone Designer and TRDP/X reports. For that reason, you have to use older versions to gradually upgrade the report library at least to a version that supports TRDP/X files, and then you may use the Standalone designer to convert the reports. The beta version of the designer was introduced with Telerik Reporting Q1 2012 (6.0.12.215).

Regards,
Todor
Progress Telerik