如何加载程序集到内存中，并执行它 [英] How to load assembly into memory and execute it

问题描述

这是即时通讯做什么：

byte[] bytes = File.ReadAllBytes(@Application.StartupPath+"/UpdateMainProgaramApp.exe");
Assembly assembly = Assembly.Load(bytes);
// load the assemly

//Assembly assembly = Assembly.LoadFrom(AssemblyName);

// Walk through each type in the assembly looking for our class
MethodInfo method = assembly.EntryPoint;
if (method != null)
{
    // create an istance of the Startup form Main method
    object o = assembly.CreateInstance(method.Name);
    // invoke the application starting point
    try
    {
        method.Invoke(o, null);
    }
    catch (TargetInvocationException e)
    {
        Console.WriteLine(e.ToString());
    }
}

的问题是，它抛出了 TargetInvocationException - 它发现，该方法是主要的，但它引发此异常，因为在这条线：

The problem is that it throws that TargetInvocationException - it finds that the method is main, but it throws this exception since on this line:

object o = assembly.CreateInstance(method.Name);

0 的剩余空。所以我挖了一个有点成堆栈跟踪和实际的错误是这样的：

o is remaining null. So I dug a bit into that stacktrace and the actual error is this:

的InnerException = {SetCompatibleTextRenderingDefault应创建firstfirst IWin32Window对象之前调用在节目}（这是我的翻译，因为它给了我一半希伯来语一半英文的堆栈跟踪，因为我的窗户是希伯来文。）

InnerException = {"SetCompatibleTextRenderingDefault should be called before creating firstfirst IWin32Window object in the program"} (this is my translation since it gives me the stacktrace in half hebrew half english since my windows is in hebrew.)

我究竟做错了什么？

推荐答案

入口点方法是静态的，所以应该使用空值调用在实例参数。尝试用以下您的Assembly.Load行后更换的所有内容：

The entry point method is static, so it should be invoked using a null value for the "instance" parameter. Try replacing everything after your Assembly.Load line with the following:

assembly.EntryPoint.Invoke(null, new object[0]);

如果入口点方法是不公开的，你应该使用Invoke重载允许您指定的BindingFlags 。

If the entry point method is not public, you should use the Invoke overload that allows you to specify BindingFlags.

这篇关于如何加载程序集到内存中，并执行它的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！