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Hashtable.Keys Property

Gets an ICollection containing the keys in the Hashtable.

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

public virtual ICollection Keys { get; }

Property Value

Type: System.Collections.ICollection
An ICollection containing the keys in the Hashtable.

Implements

IDictionary.Keys

The order of the keys in the ICollection is unspecified, but it is the same order as the associated values in the ICollection returned by the Values method.

The returned ICollection is not a static copy; instead, the ICollection refers back to the keys in the original Hashtable. Therefore, changes to the Hashtable continue to be reflected in the ICollection.

Retrieving 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, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0
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