LambdaExpression Class
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Describes a lambda expression. This captures a block of code that is similar to a .NET method body.
System.Linq.Expressions::Expression
System.Linq.Expressions::LambdaExpression
System.Linq.Expressions::Expression<TDelegate>
Assembly: System.Core (in System.Core.dll)
The LambdaExpression type exposes the following members.
| Name | Description | |
|---|---|---|
 | Body | Gets the body of the lambda expression. |
| CanReduce | Indicates that the node can be reduced to a simpler node. If this returns true, Reduce() can be called to produce the reduced form. (Inherited from Expression.) |
| Name | Gets the name of the lambda expression. |
| NodeType | Returns the node type of this Expression. (Overrides Expression::NodeType.) |
| Parameters | Gets the parameters of the lambda expression. |
| ReturnType | Gets the return type of the lambda expression. |
| TailCall | Gets the value that indicates if the lambda expression will be compiled with the tail call optimization. |
| Type | Gets the static type of the expression that this Expression represents. (Overrides Expression::Type.) |
| Name | Description | |
|---|---|---|
 | Accept | Dispatches to the specific visit method for this node type. For example, MethodCallExpression calls the VisitMethodCall. (Inherited from Expression.) |
 | Compile | Produces a delegate that represents the lambda expression. |
| Equals(Object) | Determines whether the specified Object is equal to the current Object. (Inherited from Object.) |
| Finalize | Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode | Serves as a hash function for a particular type. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| Reduce | Reduces this node to a simpler expression. If CanReduce returns true, this should return a valid expression. This method can return another node which itself must be reduced. (Inherited from Expression.) |
| ReduceAndCheck | Reduces this node to a simpler expression. If CanReduce returns true, this should return a valid expression. This method can return another node which itself must be reduced. (Inherited from Expression.) |
| ReduceExtensions | Reduces the expression to a known node type (that is not an Extension node) or just returns the expression if it is already a known type. (Inherited from Expression.) |
| ToString | Returns a textual representation of the Expression. (Inherited from Expression.) |
| VisitChildren | Reduces the node and then calls the visitor delegate on the reduced expression. The method throws an exception if the node is not reducible. (Inherited from Expression.) |
The LambdaExpression type represents a lambda expression in the form of an expression tree. The Expression<TDelegate> type, which derives from LambdaExpression and captures the type of the lambda expression more explicitly, can also be used to represent a lambda expression. At runtime, an expression tree node that represents a lambda expression is always of type Expression<TDelegate>.
The value of the NodeType property of a LambdaExpression is Lambda.
Use the Lambda factory methods to create a LambdaExpression object.