Persists the changes on a single persistent object, an
ObjectSet and
a class that implements the
ICustomPersister interface.
Syntax
| Visual Basic (Declaration) | |
|---|
Overloads Public Overridable Sub PersistChanges(Of T)( _
ByVal obj As T _
) |
| Visual Basic (Usage) |  Copy Code |
|---|
Dim instance As ObjectContext
Dim obj As T
instance.PersistChanges(Of T)(obj)
|
| C# | |
|---|
public virtual void PersistChanges<T>(
T obj
) |
| Managed Extensions for C++ | |
|---|
public: virtual void PersistChanges<T>(
T obj
) |
| C++/CLI | |
|---|
public:
virtual void PersistChangesgeneric<typename T>
(
T obj
) |
Parameters
- obj
- Persistent object, ObjectSet or class that implements
the ICustomPersister interface that is persisted.
Type Parameters
- T
Exceptions
| Exception | Description |
|---|
| ConstraintException | A mandatory property of one persistent object returned Null. |
| ConcurrencyException | Somebody else changed the object in the storage
while it has been in memory. |
| StorageException | Indicates a problem with the storage. All derived exception
may also be thrown. |
Example
The following example shows you how to persist a single persistent object.
| C# | Copy Code |
|---|
// Creates a new ObjectContext that uses an MsSql Server as storage.
ObjectContext context = new ObjectContext(new MsSqlStorage("sa", "",
"localhost", "application"));
// ... Other code.
// Get the first user matching the name.
User user = context.GetObject<User>("Name like {0}", "%mith%");
// Changes the name property.
user.Name = "new Name";
// Persists the user object.
context.PersistChanges(user);
|
Remarks
Requirements
Platforms: Windows 2000, Windows XP family, Windows Server 2003 family, Windows Vista family
See Also
