Article
11/18/2011

KeyValuePair<TKey, TValue>.Key Property

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Gets the key in the key/value pair.

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

Syntax

'Declaration
Public ReadOnly Property Key As TKey

public TKey Key { get; }

Property Value

Type: TKey
A TKey that is the key of the KeyValuePair<TKey, TValue>.

Remarks

This property is read/only.

Examples

The following code example shows how to enumerate the keys and values in a dictionary, using the KeyValuePair<TKey, TValue> structure.

This code is part of a larger example provided for the Dictionary<TKey, TValue> class.

' When you use foreach to enumerate dictionary elements,
' the elements are retrieved as KeyValuePair objects.
outputBlock.Text &= vbCrLf
For Each kvp As KeyValuePair(Of String, String) In openWith
   outputBlock.Text &= String.Format("Key = {0}, Value = {1}", _
       kvp.Key, kvp.Value) & vbCrLf
Next kvp

// When you use foreach to enumerate dictionary elements,
// the elements are retrieved as KeyValuePair objects.
outputBlock.Text += "\n";
foreach (KeyValuePair<string, string> kvp in openWith)
{
   outputBlock.Text += String.Format("Key = {0}, Value = {1}",
       kvp.Key, kvp.Value) + "\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.

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