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HttpUtility.ParseQueryString Method (String)

Parses a query string into a NameValueCollection using UTF8 encoding.

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

public static function ParseQueryString(
	query : String
) : NameValueCollection

Parameters

query
Type: System.String

The query string to parse.

Return Value

Type: System.Collections.Specialized.NameValueCollection
A NameValueCollection of query parameters and values.

ExceptionCondition
ArgumentNullException

query is a null reference (Nothing in Visual Basic).

The ParseQueryString method uses UTF8 format to parse the query string In the returned NameValueCollection, URL-encoded characters are decoded and multiple occurrences of the same query string parameter are listed as a single entry with a comma separating each value.

Security noteSecurity Note:

The ParseQueryString method uses query strings that might contain user input, which is a potential security threat. By default, ASP.NET Web pages validate that user input does not include script or HTML elements. For more information, see Script Exploits Overview.

The following code example demonstrates how to use the ParseQueryString method. Multiple occurrences of the same query string variable are consolidated in one entry of the returned NameValueCollection.

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

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0

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