There are lots of clients who have implemented web parts based on RadControls.
Usually, the most difficult thing is to set the RadControlsDir property to valid location because it is a bit tricky in SharePoint environment. Most of the time we suggest copying the /RadControls folder in C:\Program Files\Common Files\Microsoft Shared\web server extensions\60\TEMPLATE\LAYOUTS and then referring to it as "~/_layouts/RadControls".
Another option is to copy that folder in the root folder of your site and then exclude it from the SharePoint managed paths using stsadm.exe.
Creating a webpart based should be quite simple - here is a short sample:
public class MyWebPart : WebPart
protected override void CreateChildControls()
RadGrid grid = new RadGrid();
grid.ID = "myGrid";
grid.RadControlsDir = "~/_layouts/RadControls";
/* populate your grid based on your requirements */
protected override void RenderWebPart(HtmlTextWriter output)
All features of our grid control should be available under SharePoint environment as well.
Also verify that you are using the latest grid version (5.0.1) and check whether you are using a custom Master Page and the asp:ContentPlaceHolder that contains the WebPartZone resides outside the <form> tag of the page. RadGrid needs to be inside a Form with runat=server to work properly.
If so, please modify your Master Page or change the PlaceHolder / WebPartZone so that RadGrid is inside the <form> tag. This should solve your problem.
the Telerik team