Expression.Lambda Method (Expression, array<ParameterExpression[])
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Creates a LambdaExpression by first constructing a delegate type.
Namespace: System.Linq.Expressions
Assembly: System.Core (in System.Core.dll)
Syntax
'Declaration
Public Shared Function Lambda ( _
body As Expression, _
ParamArray parameters As ParameterExpression() _
) As LambdaExpression
public static LambdaExpression Lambda(
Expression body,
params ParameterExpression[] parameters
)
Parameters
- body
Type: System.Linq.Expressions.Expression
An Expression to set the Body property equal to.
- parameters
Type: array<System.Linq.Expressions.ParameterExpression[]
An array of ParameterExpression objects to use to populate the Parameters collection.
Return Value
Type: System.Linq.Expressions.LambdaExpression
A LambdaExpression that has the NodeType property equal to Lambda and the Body and Parameters properties set to the specified values.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | body is nulla null reference (Nothing in Visual Basic). -or- One or more elements of parameters are nulla null reference (Nothing in Visual Basic). |
| ArgumentException | parameters contains more than sixteen elements. |
Remarks
The parameters parameter must not have more than sixteen elements.
The elements of parameters must be reference equal to the parameter expressions in body.
This method constructs an appropriate delegate type from one of the System.Func generic delegates. It then passes the delegate type to one of the Lambda factory methods to create a LambdaExpression.
Version Information
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.