Expression::Call Method (Expression^, MethodInfo^)

.NET Framework (current version)

Creates a MethodCallExpression that represents a call to a method that takes no arguments.

Namespace: System.Linq.Expressions
Assembly: System.Core (in System.Core.dll)

Syntax

public:
static MethodCallExpression^ Call(
	Expression^ instance,
	MethodInfo^ method
)

Parameters

instance: Type: System.Linq.Expressions::Expression^
An Expression that specifies the instance for an instance method call (pass null for a static (Shared in Visual Basic) method).

method: Type: System.Reflection::MethodInfo^
A MethodInfo to set the Method property equal to.

Return Value

Type: System.Linq.Expressions::MethodCallExpression^

A MethodCallExpression that has the NodeType property equal to Call and the Object and Method properties set to the specified values.

Exceptions

Exception	Condition
ArgumentNullException	method is null. -or- instance is null and method represents an instance method.
ArgumentException	instance.Type is not assignable to the declaring type of the method represented by method.

Remarks

To represent a call to a static (Shared in Visual Basic) method, pass in null for the instance parameter when you call this method.

If method represents an instance method, the Type property of instance must be assignable to the declaring type of the method represented by method.

The Arguments property of the resulting MethodCallExpression is empty. The Type property is equal to the return type of the method represented by method.

Examples

The following code example shows how to create an expression that calls a method without arguments.

C++

No code example is currently available or this language may not be supported.

Universal Windows Platform
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1