IDictionary<TKey, TValue>.Keys Property
Microsoft Silverlight will reach end of support after October 2021. Learn more.
Gets an ICollection<T> containing the keys of the IDictionary<TKey, TValue>.
Namespace: System.Collections.Generic
Assembly: mscorlib (in mscorlib.dll)
Syntax
'Declaration
ReadOnly Property Keys As ICollection(Of TKey)
ICollection<TKey> Keys { get; }
Property Value
Type: System.Collections.Generic.ICollection<TKey>
An ICollection<T> containing the keys of the object that implements IDictionary<TKey, TValue>.
Remarks
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.
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<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
Silverlight
Supported in: 5, 4, 3
Silverlight for Windows Phone
Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0
XNA Framework
Supported in: Xbox 360, Windows Phone OS 7.0
Platforms
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.