InvokeMemberBinder.FallbackInvoke 方法

定义

命名空间:
System.Dynamic
程序集:
System.Core.dll, System.Dynamic.Runtime.dll
程序集:
netstandard.dll, System.Linq.Expressions.dll
程序集:
System.Dynamic.Runtime.dll
程序集:
System.Linq.Expressions.dll
程序集:
System.Core.dll
程序集:
netstandard.dll
Source:
InvokeMemberBinder.cs
Source:
InvokeMemberBinder.cs
Source:
InvokeMemberBinder.cs
Source:
InvokeMemberBinder.cs
Source:
InvokeMemberBinder.cs

在派生类中重写时，如果目标动态对象无法绑定，则执行动态调用操作的绑定。

public:
 abstract System::Dynamic::DynamicMetaObject ^ FallbackInvoke(System::Dynamic::DynamicMetaObject ^ target, cli::array <System::Dynamic::DynamicMetaObject ^> ^ args, System::Dynamic::DynamicMetaObject ^ errorSuggestion);
public abstract System.Dynamic.DynamicMetaObject FallbackInvoke(System.Dynamic.DynamicMetaObject target, System.Dynamic.DynamicMetaObject[] args, System.Dynamic.DynamicMetaObject errorSuggestion);
public abstract System.Dynamic.DynamicMetaObject FallbackInvoke(System.Dynamic.DynamicMetaObject target, System.Dynamic.DynamicMetaObject[] args, System.Dynamic.DynamicMetaObject? errorSuggestion);
abstract member FallbackInvoke : System.Dynamic.DynamicMetaObject * System.Dynamic.DynamicMetaObject[] * System.Dynamic.DynamicMetaObject -> System.Dynamic.DynamicMetaObject
Public MustOverride Function FallbackInvoke (target As DynamicMetaObject, args As DynamicMetaObject(), errorSuggestion As DynamicMetaObject) As DynamicMetaObject

参数

target
DynamicMetaObject

动态调用操作的目标。

args
DynamicMetaObject[]

动态调用操作的参数。

errorSuggestion
DynamicMetaObject

绑定失败或为 null 时要使用的绑定结果。

返回

DynamicMetaObject

DynamicMetaObject表示绑定的结果。

注解

当目标将调用成员操作实现为获取成员序列并调用时，目标将调用此方法，以仅允许 DynamicMetaObject 请求调用操作的绑定。

适用于