HashSet<T>.Add Method
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Adds the specified element to a set.
Assembly: System.Core (in System.Core.dll)
Parameters
- item
- Type: T
The element to add to the set.
Return Value
Type: System.Booleantrue if the element is added to the HashSet<T> object; false if the element is already present.
Implements
ISet<T>.Add(T)If Count already equals the capacity of the HashSet<T> object, the capacity is automatically adjusted to accommodate the new item.
If Count is less than the capacity of the internal array, this method is an O(1) operation. If the HashSet<T> object must be resized, this method becomes an O(n) operation, where n is Count.
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