HttpUtility::ParseQueryString Method (String)
Parses a query string into a NameValueCollection using UTF8 encoding.
Assembly: System.Web (in System.Web.dll)
Parameters
- query
- Type: System::String
The query string to parse.
Return Value
Type: System.Collections.Specialized::NameValueCollectionA NameValueCollection of query parameters and values.
| Exception | Condition |
|---|---|
| ArgumentNullException | query is nullptr. |
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 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.
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.
Security Note