Question

Is appdomain unloads at time when I call AppDomain.Unload(name) method. Or it flags for the next garbage collection.
I have following situation
Collection of AppDomains. ListApp
Unload the particular domain say d1 from ListApp
Immediately after unloading d1 again create domain d1 and add it in ListApp
When I use d1.CreateInstanceAndUnwrap() method it throws exception “attempted to access an unloaded appdomain”

public static IDictionary<object, AppDomain> LoadedDomains { get; internal set; }

private static void Load(object key)
{
    if (!LoadedDomains.Contains(key))
    {
        AppDomain domain = AppDomain.CreateDomain("t");
        LoadedDomains.Add(key, domain);
    }
}

private static void UnLoad(object key)
{
    if (LoadedDomains.Contains(key))
    {
        AppDomain.Unload(LoadedDomains(key));
        LoadedDomains.Remove(key);
    }
}

private static void Execute()
{
    object key = new object();
    Load(key);
    Unload(key);
    Load(key);
    MyObject myobj= LoadedDomains[key].CreateInstance("asName", "type");
}

Answer 1

I found the problem its in my code.
Unloading the domain and not refreshing the dictionary.