Unloading the Assembly loaded with Assembly.LoadFrom()

c# garbage-collection load gettype
prosseek picture prosseek · Jun 6, 2011 · Viewed 49.5k times · Source

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

Rene de la garza picture Rene de la garza · Jun 7, 2011

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);

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