The namespace contains classes that support interaction with relational databases in LINQ to SQL applications.
Represents an immutable block of binary data.
Returns a collection of objects involved in concurrency conflicts.
Thrown when an update fails because database values have been updated since the client last read them.
Provides a container to hold changes.
Provides for compilation and caching of queries for reuse.
Represents the main entry point for the LINQ to SQL framework.
Provides for immediate loading and filtering of related data.
此 API 支持 产品 基础结构，不应从代码直接使用。 Used internally to convert one type to another.
Thrown when an attempt is made to add an object to the identity cache by using a key that is already being used.
Provides for deferred loading and relationship maintenance for the collection side of one-to-many and one-to-one relationships in a LINQ to SQL applications.
Represents errors that occur when an attempt is made to change a foreign key when the entity is already loaded.
Represents a situation in which an attempted update fails because member values have been updated since the client last read them.
Represents an update attempt with one or more optimistic concurrency conflicts.
Represents a table for a particular type in the underlying database
Provides for deferred loading and relationship maintenance for the singleton side of a one-to-many relationship in a LINQ to SQL application.
Used to enable deferred loading of individual properties (similar to EntityRef<TEntity>).
Holds values of members that have been modified in LINQ to SQL applications.
Provides access to the return value or results of executing a query.
Provides access to the return value of a function.
Represents the results of mapped functions or queries with variable return sequences.
Represents the result of a mapped function that has a single return sequence.
Used for weakly typed query scenarios.
Represents a table for a particular type in the underlying database.
Describes the type of change the entity will undergo when changes are submitted to the database.
Specifies when concurrency conflicts should be reported.
Defines how the Refresh method handles optimistic concurrency conflicts.