IDictionary<(Of <(TKey, TValue>)>).Keys Property

[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]

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

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

Syntax

ReadOnly Property Keys As ICollection(Of TKey)
ICollection<TKey> Keys { get; }

Property Value

Type: System.Collections.Generic..::.ICollection<(Of <(TKey>)>)
An ICollection<(Of <(T>)>) containing the keys of the object that implements IDictionary<(Of <(TKey, TValue>)>).

Remarks

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

Examples

The following code example shows how to enumerate keys alone using the Keys property.

This code is part of a larger example that can be compiled and executed. See System.Collections.Generic..::.IDictionary<(Of <(TKey, TValue>)>).

' To get the keys alone, use the Keys property.
icoll = openWith.Keys

' The elements of the ValueCollection are strongly typed
' with the type that was specified for dictionary values.
outputBlock.Text &= vbCrLf
For Each s As String In icoll
   outputBlock.Text &= String.Format("Key = {0}", s) & vbCrLf
Next s
// To get the keys alone, use the Keys property.
icoll = openWith.Keys;

// The elements of the ValueCollection are strongly typed
// with the type that was specified for dictionary values.
outputBlock.Text += "\n";
foreach (string s in icoll)
{
   outputBlock.Text += String.Format("Key = {0}", s) + "\n";
}

Version Information

Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Platforms

Windows Phone

See Also

Reference

IDictionary<(Of <(TKey, TValue>)>) Interface

System.Collections.Generic Namespace

ICollection<(Of <(T>)>)