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DbExpressionBuilder.Exists(DbExpression) Method

Definition

Creates a new DbExpression that determines whether the specified set argument is non-empty.

public static System.Data.Entity.Core.Common.CommandTrees.DbExpression Exists (this System.Data.Entity.Core.Common.CommandTrees.DbExpression argument);
static member Exists : System.Data.Entity.Core.Common.CommandTrees.DbExpression -> System.Data.Entity.Core.Common.CommandTrees.DbExpression
<Extension()>
Public Function Exists (argument As DbExpression) As DbExpression

Parameters

argument
DbExpression

An expression that specifies the input set.

Returns

A new DbNotExpression applied to a new DbIsEmptyExpression with the specified argument.

Exceptions

argument is null.

argument does not have a collection result type.

Applies to