如何获取 Array.IndexOf<string>(string[], string) MethodInfo? [英] How to Get Array.IndexOf&lt;string&gt;(string[], string) MethodInfo?

问题描述

如何获取Array.IndexOf(string[], string)的MethodInfo?

我尝试使用此代码，但不起作用.

I try using this code, but doesn't work.

typeof(Array).GetMethod("IndexOf", 
 BindingFlags.Public | BindingFlags.Static, null, 
  new Type[] { typeof(string[]), typeof(string) }, null);

推荐答案

使用 BindingFlags.Public |BindingFlags.Static

下面的评论是正确的，问题在于IndexOf方法是通用的——只有一个Array.IndexOf(T[], T).为了得到那个，这对我有用:

The comment below is correct, the problem is that the IndexOf method is generic - there is only a Array.IndexOf<T>(T[], T). To get that one this is what worked for me:

var indexOfGeneric = typeof(Array).GetMethods(BindingFlags.Public | BindingFlags.Static)
                                  .First(m => m.Name == "IndexOf" 
                                           && m.GetParameters().Length == 2
                                           && m.IsGenericMethod );

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