DbExpressionBuilder.Null(TypeUsage) Method

Reference

Definition

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

Assembly:: System.Data.Entity.dll

Important

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Creates a new DbNullExpression, which represents a typed null value.

public:
[System::Runtime::CompilerServices::Extension]
 static System::Data::Common::CommandTrees::DbNullExpression ^ Null(System::Data::Metadata::Edm::TypeUsage ^ nullType);

public static System.Data.Common.CommandTrees.DbNullExpression Null(this System.Data.Metadata.Edm.TypeUsage nullType);

static member Null : System.Data.Metadata.Edm.TypeUsage -> System.Data.Common.CommandTrees.DbNullExpression

<Extension()>
Public Function Null (nullType As TypeUsage) As DbNullExpression

Parameters

nullType: TypeUsage

The type of the null value.

Returns

DbNullExpression

An instance of DbNullExpression.

Exceptions

ArgumentNullException

nullType is null.

Applies to

ผลิตภัณฑ์	เวอร์ชัน
.NET Framework	4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1

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