Gets a collection of all attribute name and value pairs declared in the user control tag within the .aspx file.
Assembly: System.Web (in System.Web.dll)
The following code example uses the user control's property to access the Message attribute declared in the custom control tag that instantiated the user control on the page that contains it.
Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.