NameValueCollection.GetKey Method (System.Collections.Specialized)

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.NET Framework Class Library

NameValueCollection.GetKey Method

Gets the key at the specified index of the NameValueCollection.

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

Syntax

Visual Basic

Public Overridable Function GetKey ( _
	index As Integer _
) As String

public virtual string GetKey(
	int index
)

Visual C++

public:
virtual String^ GetKey(
	int index
)

abstract GetKey : 
        index:int -> string 
override GetKey : 
        index:int -> string

Parameters

index: Type: System.Int32
The zero-based index of the key to get from the collection.

Return Value

Type: System.String
A String that contains the key at the specified index of the NameValueCollection, if found; otherwise, null.

Exceptions

Exception	Condition
ArgumentOutOfRangeException	index is outside the valid range of indexes for the collection.

Remarks

This method is an O(1) operation.

Version Information

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

NameValueCollection Class

System.Collections.Specialized Namespace

AllKeys