I have Telerik Reporting version 10.2.16.1025 installed, and when I try to open the designer for this example, I get an error: "Value cannot be null. Parameter name: instance". I realize that the example references its own Reporting dll, version 184.108.40.206. I'm guessing the problem is some discrepancy in the different versions of the VS plugin.
I'm still in the early stages of learning Telerik Reporting, so I am not yet able to just look at the code and figure it out. I wanted to at least see what's going on in the designer to get that view on it. I suppose I will download and install the older version of Reporting just so I can view this example, but I would rather not have to. Would you consider updating this example to work with the latest version of TR?
Also, since I've been searching for this, I've noticed several threads just like this one, and the sample code doesn't run with my installed version. Please consider adding this sample to your built-in Examples project, that way it is always kept up-to-date (I assume someone tests all the example projects with each release, and fixes them if there are problems), and then also people will stop making threads asking for this, since it is included.