Expression.Call Method (Type, String, Type[], Expression[])
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Creates a MethodCallExpression that represents a call to a static (Shared in Visual Basic) method by calling the appropriate factory method.
Assembly: System.Core (in System.Core.dll)
public static MethodCallExpression Call( Type type, string methodName, Type[] typeArguments, params Expression[] arguments )
Parameters
- type
- Type: System.Type
The Type that specifies the type that contains the specified static (Shared in Visual Basic) method.
- methodName
- Type: System.String
The name of the method.
- typeArguments
- Type:
System.Type
[]
An array of Type objects that specify the type parameters of the generic method. This argument should be null when methodName specifies a non-generic method.
- arguments
- Type:
System.Linq.Expressions.Expression
[]
An array of Expression objects that represent the arguments to the method.
Return Value
Type: System.Linq.Expressions.MethodCallExpressionA MethodCallExpression that has the NodeType property equal to Call, the Method property set to the MethodInfo that represents the specified static (Shared in Visual Basic) method, and the Arguments property set to the specified arguments.
| Exception | Condition |
|---|---|
| ArgumentNullException | type or methodName is null. |
| InvalidOperationException | No method whose name is methodName, whose type parameters match typeArguments, and whose parameter types match arguments is found in type or its base types. -or- More than one method whose name is methodName, whose type parameters match typeArguments, and whose parameter types match arguments is found in type or its base types. |
The Type property of the resulting MethodCallExpression is equal to the return type of the method denoted by methodName. The Object property is null.