Unhandled exception was thrown by the sandboxed code wrapper's Execute method in the partial trust app domain

Hi All,

  I have created a custom web part in VS 2008 for Share point server 2010 with DevExpress v12.2.17, and deployed as Sandboxed solution. when i add that web parts in web part zone i am getting the error as "Web Part Error:Unhandled exception was thrown by the sandboxed code wrapper's Execute method in the partial trust app domain: An unexpected error has occurred. ".

If there is any way to get detailed error either log file or event viewer.

Kindly advice to find the cause of the problem.

Thanks,

Selvakumar.S