Session: How to check if entity has changed?
To check if specific entity differs from the one downloaded from server HasChanged method from Advanced session operations has been introduced.
Syntax
bool HasChanged(object entity);
| Parameters | ||
|---|---|---|
| entity | object | Instance of entity for which changes will be checked. |
| Return Value | |
|---|---|
| bool | Indicated if given entity has changed. |
Example
Employee employee = session.Load<Employee>("employees/1-A");
bool hasChanged = session.Advanced.HasChanged(employee); // false
employee.LastName = "Shmoe";
hasChanged = session.Advanced.HasChanged(employee); // true