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wpfgenericsreflectionlistcollectionviewtypeinfo

ListCollectionView, find the Type that AddNew() would create?

I'm having a custom control that 'can' have a ListCollectionView passed as ItemsSource, which I need the Child-Type of for Reflection Usage.

Now I could find the Type fromthe first element:

Type t = lcv.GetItemAt(0).GetType();

However that wouldn't work, when the Collection was empty.

It also works by calling AddNew()

Object o = lcv.AddNew()
Type t = o.GetType();

But I don't want to call AddNew just to create a dummy object as this causes bugs as site effect.

However if the Method "AddNew()" knows which type of an object to create, there must be a way to find out the actual Child-Type without having to create one.

I've used google, msdn as well as Try & Error and couldn't find how.

Some ideas? Thanks in advance :-)

Solution

  • You can use GetGenericArguments to find the type contained in the collection

    var type = lcv.SourceCollection.GetType().GetGenericArguments()[0]