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HttpListenerResponse.AppendHeader Method

Appends a value to the specified HTTP header to be sent with this response.

Namespace:  System.Net
Assembly:  System (in System.dll)

public void AppendHeader(
	string name,
	string value
)

Parameters

name
Type: System.String

The name of the HTTP header to append value to.

value
Type: System.String

The value to append to the name header.

ExceptionCondition
ArgumentException

name is null or an empty string ("").

-or-

You are not allowed to specify a value for the specified header.

-or-

name or value contains invalid characters.

ArgumentOutOfRangeException

The length of value is greater than 65,535 characters.

Calling this method is equivalent to calling the Add method on the collection returned by the Headers property.

If the header specified in header does not exist, this method inserts a new header into the Headers property's collection. If header is present in the collection, this method adds value to the existing values. To replace the value of an existing header, use the AddHeader method.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0

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