This documentation is archived and is not being maintained.

NameValueCollection.NameValueCollection(IHashCodeProvider, IComparer) Constructor

NOTE: This constructor is now obsolete.

Initializes a new instance of the NameValueCollection class that is empty, has the default initial capacity and uses the specified hash code provider and the specified comparer.

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

<ObsoleteAttribute("Please use NameValueCollection(IEqualityComparer) instead.")> _
Public Sub New ( _
	hashProvider As IHashCodeProvider, _
	comparer As IComparer _
Dim hashProvider As IHashCodeProvider
Dim comparer As IComparer

Dim instance As New NameValueCollection(hashProvider, comparer)
/** @attribute ObsoleteAttribute("Please use NameValueCollection(IEqualityComparer) instead.") */ 
public NameValueCollection (
	IHashCodeProvider hashProvider, 
	IComparer comparer
ObsoleteAttribute("Please use NameValueCollection(IEqualityComparer) instead.") 
public function NameValueCollection (
	hashProvider : IHashCodeProvider, 
	comparer : IComparer
Not applicable.



The IHashCodeProvider that will supply the hash codes for all keys in the NameValueCollection.


The IComparer to use to determine whether two keys are equal.

The capacity of a NameValueCollection is the number of elements that the NameValueCollection can hold. As elements are added to a NameValueCollection, the capacity is automatically increased as required by reallocating the internal array.

If the size of the collection can be estimated, specifying the initial capacity eliminates the need to perform a number of resizing operations while adding elements to the NameValueCollection.

The hash code provider dispenses hash codes for keys in the NameValueCollection. The default hash code provider is the CaseInsensitiveHashCodeProvider.

The comparer determines whether two keys are equal. The default comparer is the CaseInsensitiveComparer.

This constructor 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: 1.0, 1.1, 2.0
Obsolete (compiler warning) in 3.0

.NET Compact Framework

Supported in: 1.0
Obsolete (compiler warning) in 2.0

XNA Framework

Supported in: 1.0