Entity framework c# error on updating a record

Guest User

I am getting the error "The relationship between the two objects cannot be defined because they are attached to different ObjectContext objects." when updating the Permission record with UserRoles navigation.

var permission = _permissionService.GetPermissionRecordBySystemName(permissionSystemName);

if (permission != null)

{

var userRole = _userService.GetUserRoleById(roleId);

if (permission.UserRoles.Contains(userRole))

{

permission.UserRoles.Remove(userRole);

}

else

{

permission.UserRoles.Add(userRole);

}

_permissionService.Update(permission); // Error at this line

}

I have used UnityContainer and repository pattern.

2 Replies

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Guest User6y ago
@Salman Beg, Thank you. I have already referred the link which you have shared. The issue which I got is because of using "Unity", I just removed and used Autofac and now its working as expected.
Salman Beg6y ago
Check this link, https://stackoverflow.com/questions/15274539/the-relationship-between-the-two-objects-cannot-be-defined-because-they-are-atta