Dictionary<TKey, TValue>.KeyCollection.Count Property

 

Gets the number of elements contained in the Dictionary<TKey, TValue>.KeyCollection.

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

public int Count { get; }

Property Value

Type: System.Int32

The number of elements contained in the Dictionary<TKey, TValue>.KeyCollection.

Retrieving the value of this property is an O(1) operation.

Universal Windows Platform
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 2.0
Windows Phone Silverlight
Available since 7.0
Windows Phone
Available since 8.1
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