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EntityReference<TEntity>.CreateSourceQuery Method

Creates an equivalent object query that returns the related object.

Namespace:  System.Data.Objects.DataClasses
Assembly:  System.Data.Entity (in System.Data.Entity.dll)

public ObjectQuery<TEntity> CreateSourceQuery()

Return Value

Type: System.Data.Objects.ObjectQuery<TEntity>
An ObjectQuery<T> that returns the related object.

ExceptionCondition
InvalidOperationException

When the object is in an Added state.

-or-

When the object is in a Detached state with a MergeOption other than NoTracking.

This method is used to obtain a new instance of ObjectQuery<T> that, when it is executed, returns the related object. This is useful as the starting point for a more complex join, union, or filtered query, or to return the referenced object in a detached state using the NoTracking option.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5 SP1

.NET Framework Client Profile

Supported in: 4

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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