Question

How to get MethodInfo for Array.IndexOf<string>(string[], string) ?

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);

Answer 1

Use BindingFlags.Public | BindingFlags.Static

Edit:

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 );