public static void InitializeAddOnTypes()
{
List <Type> types = new List <Type>();
foreach (Assembly assembly in AppDomain.CurrentDomain.GetAssemblies())
{
Type[] exportedTypes = new Type[0];
try { exportedTypes = assembly.GetExportedTypes(); }
catch { }
finally { types.AddRange(exportedTypes); }
}
AddOnTypes.Clear();
AddOnTypes.AddRange(types
.Where(t => t.GetCustomAttribute <AddOnAttribute>() != null && t.IsClass && !t.IsAbstract)
.Where(t => t.GetInterface(typeof(IAddOn).FullName) != null));
ProjectTypes.Clear();
ProjectTypes.AddRange(types
.Where(t => t.GetCustomAttribute <ProjectTypeAttribute>() != null && t.IsClass && !t.IsAbstract));
}