DataContext Class
The data context is an object representing the database, a proxy, containing Table objects that represent the tables in the database.
Namespace: System.Data.Linq
Assembly: System.Data.Linq (in System.Data.Linq.dll)
The DataContext type exposes the following members.
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DataContext(String) | Initializes a new instance of the DataContext class by referencing a file source. |
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DataContext(String, MappingSource) | Initializes a new instance of the DataContext class by referencing a file source and a mapping source. |
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ChangeConflicts | Returns a collection of objects that caused concurrency conflicts when SubmitChanges was called. |
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DeferredLoadingEnabled | Specifies whether to delay-load one-to-many or one-to-one relationships. |
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LoadOptions | Gets or sets the DataLoadOptions associated with this DataContext. |
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Log | Specifies the destination to write the SQL query or command. |
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Mapping | Returns the MetaModel on which the mapping is based. |
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ObjectTrackingEnabled | Instructs the framework to track the original value and object identity for this DataContext. |
| Name | Description | |
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CreateDatabase | Creates a database. |
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DatabaseExists | Determines whether the associated database can be opened. |
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DeleteDatabase | Deletes the associated database. |
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Dispose() | Releases all resources used by the DataContext. |
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Dispose(Boolean) | Releases resources used by the DataContext. |
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Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
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ExecuteDynamicDelete | Called inside delete override methods to redelegate to LINQ to SQL the task of generating and executing dynamic SQL for delete operations. |
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ExecuteDynamicInsert | Called inside insert override methods to redelegate to LINQ to SQL the task of generating and executing dynamic SQL for insert operations. |
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ExecuteDynamicUpdate | Called inside update override methods to redelegate to LINQ to SQL the task of generating and executing dynamic SQL for update operations. |
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Finalize | Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
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GetChangeSet | Provides access to the modified objects tracked by DataContext. |
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GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
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GetTable(Type) | Returns a collection of objects of a particular type, where the type is defined by the type parameter. |
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GetTable<TEntity>() | Returns a collection of objects of a particular type, where the type is defined by the TEntity parameter. |
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GetType | Gets the Type of the current instance. (Inherited from Object.) |
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MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
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Refresh(RefreshMode, IEnumerable) | Refreshes a collection of entity objects according to the specified mode. |
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Refresh(RefreshMode, Object) | Refreshes an entity object according to the specified mode. |
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Refresh(RefreshMode, Object[]) | Refreshes an array of entity objects according to the specified mode. |
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SubmitChanges() | Computes the set of modified objects to be inserted, updated, or deleted, and executes the appropriate commands to implement the changes to the database. |
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SubmitChanges(ConflictMode) | Sends changes that were made to retrieved objects to the underlying database, and specifies the action to be taken if the submission fails. |
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ToString | Returns a string that represents the current object. (Inherited from Object.) |
| Name | Description | |
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CreateDatabaseSchemaUpdater | Creates a DatabaseSchemaUpdater object based on the specified data context. (Defined by Extensions.) |
For information about using a local database in your Windows Phone application, see Local Database Overview for Windows Phone.
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
