c# - 获取扩展方法的 MethodInfo

Question

我无法像我怀疑的那样获取扩展方法的方法信息。怎么了？

_toStringMethod = typeof(ObjectExtensions).GetMethod("TryToString",
    BindingFlags.Public | BindingFlags.Static);

Answer 1

对我有用:

using System;
using System.Reflection;

public static class ObjectExtensions
{
    public static string TryToString(this object x)
    {
        // Just guessing...
        return x == null ? "" : x.ToString();
    }
}

class Test
{
    static void Main()
    {
        var method = typeof(ObjectExtensions).GetMethod(
            nameof(ObjectExtensions.TryToString),
            BindingFlags.Public | BindingFlags.Static);
        // Prints System.String TryToString(System.Object)
        Console.WriteLine(method);
    }
}

你能给出一个类似的简短但完整的失败示例吗？