DbExpressionBuilder.OfType(DbExpression, TypeUsage) Method

Reference

Definition

Namespace:: System.Data.Entity.Core.Common.CommandTrees.ExpressionBuilder

Assembly:: EntityFramework.dll

Important

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Creates a new DbOfTypeExpression that produces a set consisting of the elements of the given input set that are of the specified type.

public static System.Data.Entity.Core.Common.CommandTrees.DbOfTypeExpression OfType (this System.Data.Entity.Core.Common.CommandTrees.DbExpression argument, System.Data.Entity.Core.Metadata.Edm.TypeUsage type);

static member OfType : System.Data.Entity.Core.Common.CommandTrees.DbExpression * System.Data.Entity.Core.Metadata.Edm.TypeUsage -> System.Data.Entity.Core.Common.CommandTrees.DbOfTypeExpression

<Extension()>
Public Function OfType (argument As DbExpression, type As TypeUsage) As DbOfTypeExpression

Parameters

argument: DbExpression

A DbExpression that specifies the input set.

type: TypeUsage

Type metadata for the type that elements of the input set must have to be included in the resulting set.

Returns

DbOfTypeExpression

A new DbOfTypeExpression with the specified set argument and type, and an ExpressionKind of OfType .

Exceptions

ArgumentNullException

argument or type is null.

ArgumentException

argument does not have a collection result type, or type is not a type in the same type hierarchy as the element type of the collection result type of argument.

Applies to