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ObjectQuery<T>.OfType<TResultType> Method

Limits the query to only results of a specific type.

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

public ObjectQuery<TResultType> OfType<TResultType>()

Type Parameters

TResultType

The type of the ObjectResult<T> returned when the query is executed with the applied filter.

Return Value

Type: System.Data.Objects.ObjectQuery<TResultType>
A new ObjectQuery<T> instance that is equivalent to the original instance with OFTYPE applied.

ExceptionCondition
EntitySqlException

The type specified is not valid.

OfType<TResultType> is used to filter query results by a specific entity or complex type. This supports a conceptual model with object inheritance. For more information, see Entity Data Model Inheritance (Application Scenarios). The

OfType<TResultType> method can only be applied to an ObjectQuery<T> of an entity type or complex type that is defined in the EDM.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5 SP1

.NET Framework Client Profile

Supported in: 4
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