[Mono-list] Downcasting using generics in Mono-2.8.2

Sean Hubbell Sean.Hubbell at gdc4s.com
Tue Feb 15 12:52:27 EST 2011


  I have cross compiled mono and mod_mono to run on an arm processor. I am
running into the following issue:

I create a generic object and add it to a collection like so:

   collection.Add(new ConfigurableItem<string, int>("MyKey", 10));

When I retrieve the item out of the collection, I access it via an interface
called IConfigurableItem.
I then try to downcast this like so:

  IConfigurableItem item = collection.Retrieve("MyKey");
  ConfigurableItem<string, int> myItem = item as ConfigurableItem<string,

myItem is null so I looked into more detail at the type info which is


Does anyone else see this issue? Is there a patch for this?

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