.NET API Browser

System.Net.Http.Headers

Namespace containing classes that represent HTTP header fields.

WarningHeaderValueParser Class

Represents a parser for the Warning HTTP header value. This class is responsible for deserializing the string representation of a Warning header into a structured object and vice-versa.

Remarks

The Warning header provides information about some potential problem or change in the status of the requested resource. It's often used by proxies to indicate issues encountered during request processing.

This class is part of the System.Net.Http.Headers namespace, which is fundamental for working with HTTP headers in .NET applications.

Public Constructors

• WarningHeaderValueParser()

  Initializes a new instance of the WarningHeaderValueParser class.

Public Methods

• object Parse(string value)

  Parses the specified string value into a WarningHeaderValue object.

• bool TryParse(string value, out WarningHeaderValue result)

  Attempts to parse the specified string value into a WarningHeaderValue object without throwing an exception.

• string ToString(object value)

  Converts the specified WarningHeaderValue object to its string representation.

See Also

Example

using System.Net.Http.Headers;

// Example of parsing a Warning header
string warningString = "199 example.com \"1999-01-31T23:59:59Z\" \"Some serverside process is being decommissioned.\"";
WarningHeaderValueParser parser = new WarningHeaderValueParser();
WarningHeaderValue warningValue = (WarningHeaderValue)parser.Parse(warningString);

Console.WriteLine($"Code: {warningValue.Code}");
Console.WriteLine($"Agent: {warningValue.Agent}");
Console.WriteLine($"Text: {warningValue.Text}");
Console.WriteLine($"Date: {warningValue.Date}");

// Example of formatting a Warning header
WarningHeaderValue newWarning = new WarningHeaderValue(299, "my.server.com", "\"My server process is going offline soon.\"");
string formattedWarning = parser.ToString(newWarning);
Console.WriteLine($"Formatted: {formattedWarning}");