Method Contains
Contains(object)
Return true if the item belongs to this view. No assumptions are made about the item. This method will behave similarly to IList.Contains().
public virtual bool Contains(object item)
Parameters
item
object
Returns
Remarks
If the caller knows that the item belongs to the underlying collection, it is more efficient to call PassesFilter. If the underlying collection is only of type IEnumerable, this method is a O(N) operation