HashSet<'T>.ExceptWith Method (IEnumerable<'T>)


Removes all elements in the specified collection from the current HashSet<'T> object.

Namespace:   System.Collections.Generic
Assembly:  System.Core (in System.Core.dll)

abstract ExceptWith : 
        other:IEnumerable<'T> -> unit
override ExceptWith : 
        other:IEnumerable<'T> -> unit


Type: System.Collections.Generic.IEnumerable<'T>

The collection of items to remove from the HashSet<'T> object.

Exception Condition

other is null.

The ExceptWith method is the equivalent of mathematical set subtraction.

This method is an O(n) operation, where n is the number of elements in the other parameter.

The following example creates two HashSet<'T> collections with overlapping sets of data. The lower range of values is then removed from the larger set using the ExceptWith method.

No code example is currently available or this language may not be supported.

Universal Windows Platform
Available since 8
.NET Framework
Available since 3.5
Portable Class Library
Supported in: portable .NET platforms
Available since 4.0
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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