How to get an object from a list based upon IEqualityComparer<T>
- by Greg
The Compare method in Linq lets you find by an IEqualityComparer, but I can't find a counterpart method that allows you retrieve an item by the same comparer.
Is this really the best way to do it?
MyItem myFinderItem = new MyItem(keyField1, keyField2);
if (myList.Contains(myFinderItem, new MyEqualityComparer()))
{
MyItem myRealItem = myList.Single(item => new MyEqualityComparer().Equals(item , myFinderItem));
}
(I'm sharing the usage of the IEqualityComaprer with a call to the Except Linq method and I'd like to maintain a single source for equality comparisons)
