NameValueCollection.GetKey Method

Gets the key at the specified index of the NameValueCollection.

Namespace: System.Collections.Specialized
Assembly: System (in system.dll)

public virtual string GetKey (
	int index
public String GetKey (
	int index
public function GetKey (
	index : int
) : String
Not applicable.



The zero-based index of the key to get from the collection.

Return Value

A String that contains the key at the specified index of the NameValueCollection, if found; otherwise, a null reference (Nothing in Visual Basic).

Exception typeCondition


index is outside the valid range of indexes for the collection.

This method is an O(1) operation.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0, 1.0

XNA Framework

Supported in: 1.0