c# - Unloading the Assembly loaded with Assembly.LoadFrom()

Question

I need to check the time amount to run GetTypes() after loading the dll. The code is as follows.

Assembly assem = Assembly.LoadFrom(file);
sw = Stopwatch.StartNew();
var types1 = assem.GetTypes();
sw.Stop();
double time1 = sw.Elapsed.TotalMilliseconds;

I'd like to unload and reload the dll to check the time to spend in running GetTypes() again.

• How can I unload it? assem = null is good enough?
• Is there an explicit way to call garbage collector to reclaim the resource allocated to assem?

Answer 1

Can you use another AppDomain?

AppDomain dom = AppDomain.CreateDomain("some");     
AssemblyName assemblyName = new AssemblyName();
assemblyName.CodeBase = pathToAssembly;
Assembly assembly = dom.Load(assemblyName);
Type [] types = assembly.GetTypes();
AppDomain.Unload(dom);