DbExpressionBuilder.IsEmpty(DbExpression) Method

Reference

Definition

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

Assembly:: System.Data.Entity.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Creates a new DbIsEmptyExpression that determines whether the specified set argument is an empty set.

public:
[System::Runtime::CompilerServices::Extension]
 static System::Data::Common::CommandTrees::DbIsEmptyExpression ^ IsEmpty(System::Data::Common::CommandTrees::DbExpression ^ argument);

public static System.Data.Common.CommandTrees.DbIsEmptyExpression IsEmpty(this System.Data.Common.CommandTrees.DbExpression argument);

static member IsEmpty : System.Data.Common.CommandTrees.DbExpression -> System.Data.Common.CommandTrees.DbIsEmptyExpression

<Extension()>
Public Function IsEmpty (argument As DbExpression) As DbIsEmptyExpression

Parameters

argument: DbExpression

An expression that specifies the input set.

Returns

DbIsEmptyExpression

A new DbIsEmptyExpression with the specified argument.

Exceptions

ArgumentNullException

argument is null.

ArgumentException

argument does not have a collection result type.

Applies to

Product	Versions
.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

Share via