Expression.Call Method (MethodInfo, Expression[])

 

Creates a MethodCallExpression that represents a call to a static (Shared in Visual Basic) method that has arguments.

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

static member Call : 
        method:MethodInfo *
        [<ParamArrayAttribute>] arguments:Expression[] -> MethodCallExpression

Parameters

method
Type: System.Reflection.MethodInfo

A MethodInfo that represents a static (Shared in Visual Basic) method to set the Method property equal to.

arguments
Type: System.Linq.Expressions.Expression[]

An array of Expression objects to use to populate the Arguments collection.

Return Value

Type: System.Linq.Expressions.MethodCallExpression

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

Exception Condition
ArgumentNullException

method is null.

ArgumentException

The number of elements in arguments does not equal the number of parameters for the method represented by method.

-or-

One or more of the elements of arguments is not assignable to the corresponding parameter for the method represented by method.

If arguments is not null, it must have the same number of elements as the number of parameters for the method represented by method. Each element in arguments must not be null and must be assignable to the corresponding parameter of method, possibly after quoting.

System_CAPS_noteNote

An element will be quoted only if the corresponding method parameter is of type Expression. Quoting means the element is wrapped in a Quote node. The resulting node is a UnaryExpression whose Operand property is the element of arguments.

The Arguments property of the resulting MethodCallExpression is empty if arguments is null. Otherwise, it contains the same elements as arguments, some of which may be quoted.

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

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
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