HttpListenerRequest::QueryString Property
.NET Framework (current version)
Gets the query string included in the request.
Assembly: System (in System.dll)
Property Value
Type: System.Collections.Specialized::NameValueCollection^A NameValueCollection object that contains the query data included in the request Url.
In a URL, the query information is separated from the path information by a question mark (?). Name/value pairs are separated by an equals sign (=). To access the query data as a single string, get the Query property value from the Uri object returned by Url.
Note |
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Queries without an equal sign (example: http://www.contoso.com/query.htm?Name ) are added to the null key in the NameValueCollection. |
The following code example demonstrates using the QueryString property.
public static void ShowRequestProperties1 (HttpListenerRequest request) { // Display the MIME types that can be used in the response. string[] types = request.AcceptTypes; if (types != null) { Console.WriteLine("Acceptable MIME types:"); foreach (string s in types) { Console.WriteLine(s); } } // Display the language preferences for the response. types = request.UserLanguages; if (types != null) { Console.WriteLine("Acceptable natural languages:"); foreach (string l in types) { Console.WriteLine(l); } } // Display the URL used by the client. Console.WriteLine("URL: {0}", request.Url.OriginalString); Console.WriteLine("Raw URL: {0}", request.RawUrl); Console.WriteLine("Query: {0}", request.QueryString); // Display the referring URI. Console.WriteLine("Referred by: {0}", request.UrlReferrer); //Display the HTTP method. Console.WriteLine("HTTP Method: {0}", request.HttpMethod); //Display the host information specified by the client; Console.WriteLine("Host name: {0}", request.UserHostName); Console.WriteLine("Host address: {0}", request.UserHostAddress); Console.WriteLine("User agent: {0}", request.UserAgent); }
.NET Framework
Available since 2.0
Available since 2.0
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