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DbExpressionBuilder.IsEmpty(DbExpression) Method

Definition

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

A new DbIsEmptyExpression with the specified argument.

Exceptions

argument is null.

argument does not have a collection result type.

Applies to