如何解决注册C＃COM对象而没有RegAsm的真实文件
| 我有一个奇怪的应用程序加载机制。我有一个Boostrapping exe文件，其中包含所有其他DLL和应用程序本身。这些文件（程序集）是从资源中提取并加载到emand上的，因为我要附加到当前AppDomain的Assemblyresolve事件。 [STAThread]
static void Main()
{
// if the command line contains extract then extract the dlls,next run will resolve assemblies from disk
bool saveDllsToDisk = new List<string>(Environment.GetCommandLineArgs()).Contains(\"extract\");
// if the command line contains bin then use the bin folder instead of temp to extract dlls
bool useBinFolder = new List<string>(Environment.GetCommandLineArgs()).Contains(\"bin\");
if (!Directory.Exists(tempFolder)) {
Directory.CreateDirectory(tempFolder);
}
// the assembly resolver will get here because it will not find the dlls in the bin folder
// we load assemblies in our specific way:
// - if exists in our temp/bin folder load from there
// - else load from resources
// - if specified extract DLLs to the temp/bin folder
AppDomain.CurrentDomain.AssemblyResolve += (sender,args2) =>
{
string name = new AssemblyName(args2.Name).Name;
Debug.WriteLine(\"START LOADING \" + name);
Assembly assembly = null;
string folder = useBinFolder ? binFolder : Path.Combine(tempFolder,APP_NAME);
string fileName = name.Replace(\".\",\"_\").Replace(\"#EXE#\",\"\"); // in resources we use _ instead of .
string extension = name.Contains(\"#EXE#\") ? \"exe\" : \"dll\"; // hack for our embedded exe files
name = name.Replace(\"#EXE#\",\"\"); // hack for our embedded exe files
if (File.Exists(Path.Combine(folder,String.Format(\"{0}.{1}\",name,extension))))
{
// load from file in app temp folder
assembly = Assembly.LoadFile(Path.Combine(folder,extension)));
}
else
{
// extract assembly from resources
byte[] assemblyBytes = (byte[])resMan.GetObject(fileName,CultureInfo.InvariantCulture);
assembly = Assembly.Load(assemblyBytes);
// if selected save to file so the next run JIT will resolve from disk
if (saveDllsToDisk)
{
string outDll = Path.Combine(folder,extension));
using (var fs = File.Create(outDll))
{
fs.Write(assemblyBytes,assemblyBytes.Length);
}
}
}
Debug.WriteLine(\"LOADED \" + name);
return assembly;
};
splashScreen = new frmSplash();
// as soon as splashscreen starts animating assembly preloading will be launched on this eventhandler
splashScreen.Started += new EventHandler(splash_Started);
// splashscreen has finished fadein we must now wait for all libraries to be preloaded and set CanContinue
splashScreen.Finishing += new EventHandler(splash_Finishing);
splashScreen.CanContinue = false;
// run splashscreen while preloading of DLLs is going on
Application.Run(splashScreen);
}
ObjectHandle instance;
string[,] assemblies = {
{\"WindowsBase,Version=3.0.0.0,Culture=neutral,PublicKeyToken=31bf3856ad364e35\",\"dummy\"},// will go from GAC,not our resolver
{\"PresentationCore,not our resolver
{\"PresentationFramework,not our resolver
{\"WindowsFormsIntegration,not our resolver
{\"PresentationFramework.Aero,not our resolver
{\"System.Core,Version=3.5.0.0,PublicKeyToken=b77a5c561934e089\",not our resolver
{\"AvalonDock,Version=1.3.3585.0,PublicKeyToken=85a1e0ada7ec13e4\",// out reference inside resources
{\"AvalonDock.Themes,Version=1.0.0.0,PublicKeyToken=null\",// out reference inside resources
{\"ICSharpCode.AvalonEdit,Version=4.0.0.5950,PublicKeyToken=9cc39be672370310\",// out reference inside resources
{\"WPG,Version=2.0.4120.37542,// out reference inside resources
{\"WPGBrushEditor,// out reference inside resources
{\"HLSLEditor,\"dummy\"} // preload even our main file that will launch after the splashscreen
};
for (int i = 0; i <= assemblies.GetUpperBound(0); i++)
{
try
{
instance = AppDomain.CurrentDomain.CreateInstance(assemblies[i,0],assemblies[i,1]);
}
catch (Exception ex) {
/* must not raise errors,it will fail because we are not actually asking for a
* valid type and we only need this assembly loaded right now*/
}
}
解决方法
我正在用Excel-DNA做类似的事情。您不必将COM类型反序列化到磁盘上，也不必事先注册。我要做的是定义一个实现IClassFactory的类，然后通过调用CoRegisterClassObject将其注册为特定CLSID（类型）的当前类工厂。当COM尝试创建对象时，您的类工厂将被调用，并且可以返回.NET类型的实例。
根据上下文，您可能需要即时处理ProgID / CLSID注册。
（如果您与我联系，我很乐意帮助您从Excel-DNA代码中获取正确的信息，以帮助您入门。）,我挖了一点，也许在主要可执行文件中实现了DllRegisterServer（），然后在所有嵌入式DLL中注册所有COM类型就可以了。
谁能确认？
编辑：是的，它可以完成，但是主要的可执行文件必须是内部DLL的COM代理。
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