I will answer your questions in the following order:
- Please note that the Content property of the RadDiagramShape is of type object and you can easily add a RadGridView control. Keep in mind that (if you are not using an MVVM approach) we recommend defining all elements of the RadDiagram in XAML (rather than in code behind).
- Regarding your second question you can find detailed description about styling the RadGridView control. Please refer to this article.
- Also, in our documentation you can read this article - setting the RowIndicatorVisibility property to Collapsed should do the job.
Please take a look at the attached project and let me know if it works for you.
Pavel R. Pavlov
the Telerik team