Assembly.GetType(“[...]”,true);抛出TypeLoadException

时间:2016-09-24 15:16:50

标签: c#

我的代码:

//App, Core.cs
using System;
using System.IO;
using System.Reflection;

namespace Game
{
    public static void Main(string[] args)
    {
        Assembly a = Assembly.LoadFile(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "mods\\ExampleMod.dll"));
        var x1 = a.GetType("PTF_Mod.Mod_Main");
        var x2 = x1.GetMethod("OnStart");
        var x3 = x2.Invoke(null, new object[] { });

        while(true);
    }
}


//App, ModCrew.cs
using System;
using System.Reflection;

namespace Engine
{
    public static class ModCrew
    {
        public class Mod
        {
            public void ItWorks()
            {
                Console.WriteLine("It works!");
            }
        }
    }
}

//DLL, Mod_Main.cs
using System;
using System.Reflection;

namespace PTF_Mod
{
    public static class Mod_Main
    {
        public static void OnStart()
        {
            var exe = Assembly.GetCallingAssembly();
            Console.WriteLine(exe.Location); //Location is valid
            var x = exe.GetType("Engine.ModCrew.Mod", true); //But here I get exception
            var y = Activator.CreateInstance(x);

            x.GetMethod("ItWorks", BindingFlags.Instance).Invoke(null, object[] { });
        }
    }
}

例外: mscorlib.dll中出现“System.TypeLoadException”类型的异常,但未在用户代码中处理

其他信息:Niemożnazaładowaćtyxu'Engine.ModCrew.Mod'zzestawu'Game,Version = 0.0.0.0,Culture = neutral,PublicKeyToken = null'。

1 个答案:

答案 0 :(得分:1)

通过反射获取方法时,应始终使用BindingFlags

使用MethodInfo.Invoke调用实例需要将实例作为第一个参数MethodInfo.Invoke(MyInstance,...)

根据评论进行更改:

public static void Main(string[] args)
{
    Assembly a = Assembly.LoadFile(Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "mods\\ExampleMod.dll"));
    var x1 = a.GetType("PTF_Mod.Mod_Main");
    var x2 = x1.GetMethod("OnStart", BindingFlags.Static | BindingFlags.Public);
    var x3 = x2.Invoke(null, null);

    while(true);
}

Mod_Main:

public static void OnStart()
{
    var exe = Assembly.GetCallingAssembly();
    Console.WriteLine(exe.Location); //Location is valid
    var x = exe.GetType("Engine.ModCrew+Mod", true); //But here I get exception
    var y = Activator.CreateInstance(x);

    x.GetMethod("ItWorks", BindingFlags.Instance | BindingFlags.Public).Invoke(y, null);
}

另外,考虑是否需要反射,它可能使程序过于复杂。如果有必要,你应该调查Dynamic以避免使用反射调用方法的许多麻烦