WebHeaderCollection Class
Assembly: System (in system.dll)
'Declaration <SerializableAttribute> _ <ComVisibleAttribute(True)> _ Public Class WebHeaderCollection Inherits NameValueCollection Implements ISerializable 'Usage Dim instance As WebHeaderCollection
/** @attribute SerializableAttribute() */ /** @attribute ComVisibleAttribute(true) */ public class WebHeaderCollection extends NameValueCollection implements ISerializable
SerializableAttribute ComVisibleAttribute(true) public class WebHeaderCollection extends NameValueCollection implements ISerializable
The WebHeaderCollection class is generally accessed through WebRequest.Headers or WebResponse.Headers. Some common headers are considered restricted and are either exposed directly by the API (such as Content-Type) or protected by the system and cannot be changed.
The restricted headers are:
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Accept
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Connection
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Content-Length
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Content-Type
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Date
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Expect
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Host
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If-Modified-Since
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Range
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Referer
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Transfer-Encoding
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User-Agent
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Proxy-Connection
System.Collections.Specialized.NameObjectCollectionBase
System.Collections.Specialized.NameValueCollection
System.Net.WebHeaderCollection
Windows 98, Windows 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 .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.