Question

我想获得方法，但有一个超载。例如在对象中，我试图获得“等于”。使用时

    public virtual bool Equals(object obj);
    public static bool Equals(object objA, object objB);

写typeof(Object).GetMethod("Equals")给我一个例外，写typeof(Object).GetMethod("public virtual bool Equals(object obj)")让我无效。在这种情况下，如何指定我想要的方法？

Answer 1

使用one of the overloads可以指定参数类型。

例如：

var staticMethod = typeof(Object).GetMethod("Equals",
      BindingFlags.Static | BindingFlags.Public,
      null,
      new Type[] { typeof(object), typeof(object) },
      null);

var instanceMethod = typeof(Object).GetMethod("Equals",
      BindingFlags.Instance | BindingFlags.Public,
      null,
      new Type[] { typeof(object) },
      null);

或者：

var staticMethod = typeof(Object).GetMethod("Equals",
      new Type[] { typeof(object), typeof(object) });

var instanceMethod = typeof(Object).GetMethod("Equals",
      new Type[] { typeof(object) });

Answer 2

MethodInfo methodInfo = typeof(object).GetMethod("Equals", new Type[] { typeof(object), typeof(object) });

Answer 3

您可以尝试此代码..

public override void OnResultExecuted（ResultExecutedContext filterContext） { var actionName = filterContext.RouteData.Values [“action”]。ToString（）;

var ctlr = filterContext.Controller as Controller;
if (ctlr == null) return;
var invoker = ctlr.ActionInvoker as ControllerActionInvoker;
if (invoker == null) return;

var invokerType = invoker.GetType();
var getCtlrDescMethod = invokerType.GetMethod("GetControllerDescriptor", BindingFlags.NonPublic | BindingFlags.Instance);
var ctlrDesc = getCtlrDescMethod.Invoke(invoker, new object[] {ctlr.ControllerContext}) as ControllerDescriptor;

var findActionMethod = invokerType.GetMethod("FindAction", BindingFlags.NonPublic | BindingFlags.Instance);
var actionDesc = findActionMethod.Invoke(invoker, new object[] { ctlr.ControllerContext, ctlrDesc, actionName }) as ReflectedActionDescriptor;
if (actionDesc == null) return;

if (actionDesc.MethodInfo.ReturnType == typeof (ActionResult))
{
    // you're in
}

}

反思GetMethod。选择一个更具体的方法

3 个答案: