How can I convert anonymous type to strong type in LINQ?

Question

I have an array of ListViewItems ( ListViewItem[] ), where I store a SalesOrderMaster object in each ListViewItem.Tag for later reference.

I ha

Answer 1

Like Marc Gravell said, you shouldn't access the Tag property from different threads, and the cast is quite cheap, so you have:

var items = (e.Argument as ListViewItem[]).Select(x=>x.Tag)
         .OfType().ToList();

but then, you want to find distinct items - here you can try using AsParallel:

var orders = items.AsParallel().Distinct();