DbExpressionBuilder.Where Method
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Creates a new DbFilterExpression that filters the elements in the given input set using the specified predicate.
public:
[System::Runtime::CompilerServices::Extension]
static System::Data::Common::CommandTrees::DbFilterExpression ^ Where(System::Data::Common::CommandTrees::DbExpression ^ source, Func<System::Data::Common::CommandTrees::DbExpression ^, System::Data::Common::CommandTrees::DbExpression ^> ^ predicate);public static System.Data.Common.CommandTrees.DbFilterExpression Where(this System.Data.Common.CommandTrees.DbExpression source, Func<System.Data.Common.CommandTrees.DbExpression,System.Data.Common.CommandTrees.DbExpression> predicate);static member Where : System.Data.Common.CommandTrees.DbExpression * Func<System.Data.Common.CommandTrees.DbExpression, System.Data.Common.CommandTrees.DbExpression> -> System.Data.Common.CommandTrees.DbFilterExpression<Extension()>
Public Function Where (source As DbExpression, predicate As Func(Of DbExpression, DbExpression)) As DbFilterExpression- source
- DbExpression
An expression that specifies the input set.
- predicate
- Func<DbExpression,DbExpression>
A method representing the predicate to evaluate for each member of the input set. This method must produce an expression with a Boolean result type that provides the predicate logic.
A new DbQuantifierExpression that represents the Any operation.
source or predicate is null.
-or-
The expression produced by predicate is null.
The expression produced by predicate does not have a Boolean result type.
| Продукт | Версии |
|---|---|
| .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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