C# 从字节运行

发布于 2024-09-29 12:19:49 字数 1002 浏览 3 评论 0原文

我正在努力让我的客户端通过下载字节并使用反射打开另一个程序来打开它。我目前已在 C# 控制台应用程序上完成此操作，但当我尝试在 Windows 窗体应用程序上执行此操作时，出现此错误。

“调用目标已引发异常。”

这是代码

using System;
using System.IO;
using System.Net;
using System.Reflection;
using System.Text;
    private void listBox1_DoubleClick(object sender, EventArgs e)
    {
        if (listBox1.SelectedItem.ToString() != null)
        {
            if (MessageBox.Show("Run " + listBox1.SelectedItem.ToString() + "?", "Run this program?", MessageBoxButtons.YesNo) == DialogResult.Yes)
            {
                byte[] bytes;
                using (WebClient client = new WebClient())
                {
                    bytes = client.DownloadData(new Uri("http://example.net/program.exe"));
                }
                RunFromBytes(bytes);
            }
        }
    }
    private static void RunFromBytes(byte[] bytes)
    {
        Assembly exeAssembly = Assembly.Load(bytes);
        exeAssembly.EntryPoint.Invoke(null, null);
    }

原文

I am working on making my client open another program by downloading the bytes and using reflection to open it. I have currently got this working on a C# Console Application, but when I try and do it on a Windows Form Application I get this error.

"Exception has been thrown by the target of an invocation."

Here is the code

using System;
using System.IO;
using System.Net;
using System.Reflection;
using System.Text;
    private void listBox1_DoubleClick(object sender, EventArgs e)
    {
        if (listBox1.SelectedItem.ToString() != null)
        {
            if (MessageBox.Show("Run " + listBox1.SelectedItem.ToString() + "?", "Run this program?", MessageBoxButtons.YesNo) == DialogResult.Yes)
            {
                byte[] bytes;
                using (WebClient client = new WebClient())
                {
                    bytes = client.DownloadData(new Uri("http://example.net/program.exe"));
                }
                RunFromBytes(bytes);
            }
        }
    }
    private static void RunFromBytes(byte[] bytes)
    {
        Assembly exeAssembly = Assembly.Load(bytes);
        exeAssembly.EntryPoint.Invoke(null, null);
    }

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习惯那些不曾习惯的习惯 2024-10-06 12:19:49

您必须执行以下操作：

创建新的应用程序域
写入字节数组到一个文件
通过 ExecuteAssembly 执行它

这是代码：

File.WriteAllBytes("yourApplication.exe", bytes);
AppDomain newDomain= AppDomain.CreateDomain("newDomain");
newDomain.ExecuteAssembly("file.exe");

祝你好运！

You must do the following:

Create a new application domain
Write the byte array to a file
Execute it by ExecuteAssembly

This is the code:

File.WriteAllBytes("yourApplication.exe", bytes);
AppDomain newDomain= AppDomain.CreateDomain("newDomain");
newDomain.ExecuteAssembly("file.exe");

Good luck!

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葬心 2024-10-06 12:19:49

那是因为您正在尝试从另一个线程访问表单控件。
请参阅此处： http://www.yoda.arachsys.com/csharp/threads/ winforms.shtml

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￡冰雨忧蓝° 2024-10-06 12:19:49

你可以这样做：

private static void RunFromBytes(byte[] bytes)
{

Assembly exeAssembly = Assembly.Load(bytes);
var entryPoint = exeAssembly.EntryPoint;
var parms = exeAssembly.CreateInstance(entryPoint.Name);
 entryPoint.Invoke(parms, null);
}

You can do like:

private static void RunFromBytes(byte[] bytes)
{

Assembly exeAssembly = Assembly.Load(bytes);
var entryPoint = exeAssembly.EntryPoint;
var parms = exeAssembly.CreateInstance(entryPoint.Name);
 entryPoint.Invoke(parms, null);
}

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