Add Method (String)

WebHeaderCollection.Add Method (String)


Inserts the specified header into the collection.

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

member Add : 
        header:string -> unit


Type: System.String

The header to add, with the name and value separated by a colon.

Exception Condition

header is null or Empty.


header does not contain a colon (:) character.

The length of value is greater than 65535.


The name part of header is Empty or contains invalid characters.


header is a restricted header that should be set with a property.


The value part of header contains invalid characters.


The length the string after the colon (:) is greater than 65535.

The header parameter must be specified in the format "name:value". If the specified header does not exist in the collection, a new header is added to the collection.

If the header specified in header is already present in the collection, the value part of the header is concatenated with the existing value.

The following example adds a name/value pair to a WebHeaderCollection using the Add Method.

No code example is currently available or this language may not be supported.

.NET Framework
Available since 1.1
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