While Binding my Arraylist with Datagrid i'm getting the following error.

"An invalid data source is being used for dgUserAccount. A valid data source must implement either IListSource or IEnumerable."

Thanks .

The error is self explanatory. Do you want to bind a list of entities? Why don't you use an EntityCollection with a BindingSource (Windows app) or LLBLGenProDataSource (Web app).