Gets the query string included in the request.
Assembly: System (in System.dll)
Public ReadOnly Property QueryString As NameValueCollectionpublic NameValueCollection QueryString { get; }public:
property NameValueCollection^ QueryString {
NameValueCollection^ get ();
}member QueryString : NameValueCollection
Property Value
Type: System.Collections.SpecializedA 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 |
|---|
Queries without an equal sign (example: http://www.contoso.com/query.htm?Name ) are added to the |
The following code example demonstrates using the QueryString property.
Public Shared Sub ShowRequestProperties1(ByVal request As HttpListenerRequest)
' Display the MIME types that can be used in the response.
Dim types() As String = request.AcceptTypes
If types IsNot Nothing Then
Console.WriteLine("Acceptable MIME types:")
For Each s As String In types
Console.WriteLine(s)
Next s
End If
' Display the language preferences for the response.
types = request.UserLanguages
If types IsNot Nothing Then
Console.WriteLine("Acceptable natural languages:")
For Each l As String In types
Console.WriteLine(l)
Next l
End If
' 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)
End Sub
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);
}
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.
Note