dynamic loaded dll question

hi all,

each time I'm loading a new dll (containing a winform) dynamically to my main app, the previously loaded one (if there was one) isn't unloaded. the dlls are loaded dynamically when I select a button and their winforms are automatically shown. when I select another button, there is another dll loaded and another winform shown, the last should be closed. when I do this several times, the application freezes.

why is this? should I somehow unload the dll before loading a new one?

hope I was clear enough :)
thanks

d.

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Yes a dictionary is a collection of things.

Each thing in the dictionary consists of 2 objects. One object would be something you use to lookup the thing - eg a dll name and the other object would be an instance of your dll.

Remember the very first code I showed you for this topic - that did it this way - see attached code again.

Noe that the Dictionary needs you to specify what type of objects you will use. String fro your first one and use the common interface for the second one as all of your dlls will be of that interface type.

Also see:

http://www.vcskicks.com/dictionary.php

        private void LoadInfoHandlers()
        {
            infoCardFactories = new Dictionary<string, IInfoCardFactory>();
 
            // Get list of all dll files in same folder as main executable and
            // iterate through them seeing if any of them contain classes that
            // implement IInfoCardFactory.  
            string[] dllFiles = System.IO.Directory.GetFiles(".", "*.dll");
            foreach (string file in dllFiles)
            {
                Assembly assembly = Assembly.LoadFrom(file);
 
                foreach (Type type in assembly.GetTypes())
                {
                    if (type.IsClass && type.GetInterface("IInfoCardFactory") != null)
                    {
                        // IInfoCardFactory is implemented. Create a new instance of the object
                        // and determine what categories are supported. Build the list of categories
                        // and the IInfoCardFactory that creates objects of that category type
                        
                        IInfoCardFactory infoCardFactory = (IInfoCardFactory)Activator.CreateInstance(type);
                        //IInfoCardFactory infoCardFactory = (type)Activator.CreateInstance(type);
 
 
                        string[] categoriesSupported = infoCardFactory.CategoriesSupported;
                        foreach (string category in categoriesSupported)
                        {
                            infoCardFactories.Add(category, infoCardFactory);
                        }
                    }
                }
            }
        }

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