BindingFlags

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转载最新推荐文章于 2025-08-13 08:33:39 发布 · 59 阅读

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原文链接：http://www.cnblogs.com/whyandinside/archive/2009/08/28/1555975.html

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#runtime

BindingFlags

These BindingFlags control binding for a great many classes in the System, System.Reflection, and System.Runtime namespaces that invoke, create, get, set, and find members and types.
The binding flags can be categorized by how they identify a type member, as listed in the following table.
Identified by Accessibility
Instance(实例成员), Static(静态成员)
NonPublic, Public

DeclaredOnly ：指定只应考虑在所提供类型的层次结构级别上声明的成员。不考虑继承成员。例如Object类有toString()等方法，但是，当你使用Dog(extends Object)获取Public的Method时，如果不指定DeclaredOnly，Object中定义的这些方法也会返回，否则就不返回；
FlattenHierarchy : 继承树上层的Public 或 Protected Static成员也会返回，如果不指定就不会返回；看代码的例子
IgnoreCase：指定当绑定时不应考虑成员名的大小写；
IgnoreReturn：在 COM interop 中用于指定可以忽略成员的返回值；

FlattenHierarchy
1     class A : B
2     {
3     }
4
5     class B
6     {
7         public static void Foo(int b)
8         {
9             Console.WriteLine("From B");
10
11         }
12     }
13
14 typeof(A).GetMethod("Foo",System.Reflection.BindingFlags.Static| System.Reflection.BindingFlags.Public)
15 null
16 typeof(A).GetMethod("Foo",System.Reflection.BindingFlags.Static| System.Reflection.BindingFlags.Public|System.Reflection.BindingFlags.FlattenHierarchy)
17 {Void Foo(Int32)}
18     [System.Reflection.RuntimeMethodInfo]: {Void Foo(Int32)}
19     base {System.Reflection.MethodBase}: {Void Foo(Int32)}
20     ContainsGenericParameters: false
21     IsGenericMethod: false
22     IsGenericMethodDefinition: false
23     MemberType: Method
24     ReturnParameter: {Void }
25     ReturnType: {Name = "Void" FullName = "System.Void"}
26     ReturnTypeCustomAttributes: {Void }
27

Identified by Binding Argument

ExactBinding ：Specifies that types of the supplied arguments must exactly match the types of the corresponding formal parameters.
OptionalParamBinding ：返回其参数计数与提供参数的数目匹配的成员集。此绑定标志用于所带参数具有默认值的方法和带变量参数 (varargs) 的方法。此标志应只与 Type.InvokeMember 一起使用；

Identified by Operation(这部分功能与)

CreateInstance :
GetField :
SetField :
GetProperty :
SetProperty :
InvokeMethod:
PutDispProperty :
PutRefDispProperty :

转载于:https://www.cnblogs.com/whyandinside/archive/2009/08/28/1555975.html