Assembly.LoadFrom() & appDomains

[stokiemike]

I need to unload my loaded assembly. I have used LoadFrom to give me the flexability of loading the dll from any location.

However, to totally remove the assembly I need to unload the AppDomain, but I don't know how to initialy load the assembly into the AppDomain.

AppDomain newDomain = AppDomain.CreateDomain("newDomain", null, domainSetup);

assembly a = Assembly.LoadFrom(filename);

foreach (Type TypeAlgorithm in a.GetExportedTypes())
{
if (TypeAlgorithm.IsClass == true)
{
ObjAlgorithmInstance = Activator.CreateInstance(TypeAlgorithm);
methodInfo = ObjAlgorithmInstance.GetType().GetMethod("start");
methodInfo.Invoke(ObjAlgorithmInstance, new object[] { });
}
}

//NEED TO UNLOAD THE ASSEMBLY, BUT HOW???

[stokiemike]

Have found a metod to load assembly into new domain. However, the dll file is locked and I cannot change its contence with the method os executing. I thought the ShadowCopyFile allows adjustments to assembly while its executing. Any suggestions

public static void LoadAssembly(String filename)
{
// Create application domain setup information.
AppDomainSetup domainSetup = new AppDomainSetup();
domainSetup.ShadowCopyFiles = "true";

//Create domain with setup parameters
AppDomain myDomain = AppDomain.CreateDomain("Algorithm", null, domainSetup);


//Create instance of class
Object objAlgorithm = myDomain.CreateInstanceFromAndUnwrap(@"I:\temp\alg orithmCS.dll", "Algorithms.algorithmCS");

//Execute specific member of the class
object[] arguments = new object[0];
objAlgorithm.GetType().InvokeMember("start",
BindingFlags.Default | BindingFlags.InvokeMethod,
null,
objAlgorithm, arguments);
//Unload assembly
AppDomain.Unload(myDomain);
myDomain = null;
objAlgorithm = null;
}

[stokiemike]

Answer at:

https://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=1575003&SiteID=1