Why we get an exception that is Entry point was not found when a data table is bind to grid control.
While binding GridControl with datatable we get exception “Entry point is not found”. This issue will occur when your application does not have the correct entry point. The common language runtime is unable to locate an application entry point (typically a Main method) in an executable assembly. The application entry point must be a global or static method that has either no parameters or a string array as its only parameter. The entry point can return void, or it can return an or exit code. An application assembly cannot define more than one entry point.
Please refer to the following MSDN link for more details about this kind of exception (and how to overcome it).