Exception : Object reference not set to an instance of an object. App Error Log : - Employee ID : 3761 Action Name : UpdateClassChanges Model : System.Web.Mvc.HandleErrorInfo Controller : UserDetails Web Error Log : at WORKTERRA.Shared.WORKTERRAControllerWebTier.Save(ObjectType I_objectType, Object objInputObject, Object I_context, Boolean I_mode) in c:\WT\branches\UiRefresh\Web\ControllerWebTier\ControllerWebTier\WORKTERRAControllerWebTier.cs:line 111 at WORKTERRA.Shared.Areas.UserDetails.Models.ChangeClasses.ChangeClassesModel.UpdateEmployeeClassInformation() in c:\WT\branches\UiRefresh\Web\Web Projects\WORKTERRA\Areas\UserDetails\Models\ChangeClasses\ChangeClassesModel.cs:line 98 at WORKTERRA.Shared.Areas.UserDetails.Controllers.UserDetailsController.UpdateClassChanges(ChangeClassesModel objChangeClasses) in c:\WT\branches\UiRefresh\Web\Web Projects\WORKTERRA\Areas\UserDetails\Controllers\ChangeClasses\ChangeClassesController.cs:line 34 at lambda_method(Closure , ControllerBase , Object[] ) at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters) at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.<InvokeActionMethodWithFilters>b__12() at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.<>c__DisplayClass17.<InvokeActionMethodWithFilters>b__14() at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodFilter(IActionFilter filter, ActionExecutingContext preContext, Func`1 continuation) at System.Web.Mvc.ControllerActionInvoker.<>c__DisplayClass15.<>c__DisplayClass17.<InvokeActionMethodWithFilters>b__14() at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethodWithFilters(ControllerContext controllerContext, IList`1 filters, ActionDescriptor actionDescriptor, IDictionary`2 parameters) at System.Web.Mvc.ControllerActionInvoker.InvokeAction(ControllerContext controllerContext, String actionName)