Loading a class from DLL at run-time

[hhrafn]

Hi, I'm trying to build a kind of a plugin-factory and I'd like to load these 'plug-ins' at run-time all using the same interface ect.. What I'm missing is a way to load the Class from a dll file into my program at run-time. Using .NET 2.0 would be preffered but I'm kinda easy as long as I get a viable solution :-D thanks, HHG

[Stefan Troschuetz]

Looking for something like this:

// Get paths of all available libraries in Plugin directory.
string[] filePaths = Directory.GetFiles(FormMain.PluginsDirectoryPath, "*.dll");

for (int i = 0; i < filePaths.Length; i++)
{
try
{
// Load the assembly and get the defined types.
Assembly assembly = Assembly.LoadFrom(filePaths[i]);
Type[] types = assembly.GetTypes();

IPlugin plugin;
for (int j = 0; j < types.Length; j++)
{
  if (types\[j\].GetInterface(typeof(IPlugin).FullName) != null)
  {// The type implements IPlugin interface.
    //Create an instance of the IPlugin implementation and store it.
    plugin = (IPlugin) Activator.CreateInstance(types\[j\]);
    this.plugins.Add(plugin);
  }
}

}
}

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www.troschuetz.de

[hhrafn]

Thanks alot, this seems promising :cool: