Let me know how can I see the "Open Property Builder" in the RadGrid's Smart Tag.
Although I configure the DataSource, I always see the "Open Editor" instead of the "Open Property Builder" .
Can anyone help me?
I am using the VS 2010 and asp.net 4.0.
I am assuming, here, that you're trying to follow steps in the ASP.NET AJAX RadGrid Tutorial: Building a Hierarchical Grid.
The "Open Editor" link has actually replaced the older "Open Property Builder" one in previous builds. The Wizard Form Designer was revamped earlier in 2011 and the newer layout and functionality is different than in screen shots shown in some of Telerik existing documentation pages which are not yet updated with new screenshots.
All required data design functionality exists in the newer designer.