Add Method (HttpResponseHeader, String)

WebHeaderCollection.Add Method (HttpResponseHeader, String)

Inserts the specified header with the specified value into the collection.

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

public void Add(
	HttpResponseHeader header,
	string value


Type: System.Net.HttpResponseHeader
The header to add to the collection.
Type: System.String
The content of the header.


The length of value is greater than 65535.


This WebHeaderCollection instance does not allow instances of HttpResponseHeader.

If the specified header does not exist, the Add method inserts a new header into the list of header name/value pairs.

If the specified header is already present, value is added to the comma-separated list of values associated with the header.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

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.

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