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Dictionary<TKey, TValue>.IDictionary<TKey, TValue>.Keys Property

Gets an ICollection<T> containing the keys of the IDictionary<TKey, TValue>.

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

ICollection<TKey> IDictionary<TKey, TValue>.Keys { get; }

Property Value

Type: System.Collections.Generic.ICollection<TKey>
An ICollection<T> of type TKey containing the keys of the IDictionary<TKey, TValue>.

Implements

IDictionary<TKey, TValue>.Keys

The order of the keys in the returned ICollection<T> is unspecified, but it is guaranteed to be the same order as the corresponding values in the ICollection<T> returned by the Values property.

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

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8
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