Expression::AddChecked Method (Expression^, Expression^, MethodInfo^)
Creates a BinaryExpression that represents an arithmetic addition operation that has overflow checking. The implementing method can be specified.
Assembly: System.Core (in System.Core.dll)
public: static BinaryExpression^ AddChecked( Expression^ left, Expression^ right, MethodInfo^ method )
left or right is null.
method is not null and the method it represents returns void, is not static (Shared in Visual Basic), or does not take exactly two arguments.
method is null and the addition operator is not defined for left.Type and right.Type.
The resulting BinaryExpression has the Method property set to the implementing method. The Type property is set to the type of the node. If the node is lifted, the IsLifted and IsLiftedToNull properties are both true. Otherwise, they are false. The Conversion property is null.
The following information describes the implementing method, the node type, and whether a node is lifted.
The implementing method for the operation is chosen based on the following rules:
If method is not null and it represents a non-void, static (Shared in Visual Basic) method that takes two arguments, it is the implementing method for the node.
Otherwise, if left.Type and right.Type are numeric types, the implementing method is null.
If the implementing method is not null:
If left.Type and right.Type are assignable to the corresponding argument types of the implementing method, the node is not lifted. The type of the node is the return type of the implementing method.
If the following two conditions are satisfied, the node is lifted and the type of the node is the nullable type that corresponds to the return type of the implementing method:
left.Type and right.Type are both value types of which at least one is nullable and the corresponding non-nullable types are equal to the corresponding argument types of the implementing method.
The return type of the implementing method is a non-nullable value type.
If the implementing method is null:
If left.Type and right.Type are both non-nullable, the node is not lifted. The type of the node is the result type of the predefined addition operator.
If left.Type and right.Type are both nullable, the node is lifted. The type of the node is the nullable type that corresponds to the result type of the predefined addition operator.
Available since 8
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Available since 8.1