Mega Code Archive
The ASP NET Framework gives you the most commonly used namespaces
<![CDATA[
System
System.Collections
System.Collections.Specialized
System.Configuration
System.Text
System.Text.RegularExpressions
System.Web
System.Web.Caching
System.Web.SessionState
System.Web.Security
System.Web.Profile
System.Web.UI
System.Web.UI.WebControls
System.Web.UI.WebControls.WebParts
System.Web.UI.HTMLControls
System.Web.Extensions
System.Xml.Linq
System.Data.DataSetExtensions
The default namespaces are listed inside the pages element in the root web configuration file
located at the following path:
\WINDOWS\Microsoft.NET\Framework\v2.0.50727\CONFIG\Web.Config
Before you can use a class contained in an assembly in your application,
you must add a reference to the assembly.
By default, an ASP.NET application references the most common assemblies contained in the Global Assembly Cache:
mscorlib.dll
System.dll
System.Configuration.dll
System.Web.dll
System.Data.dll
System.Web.Services.dll
System.Xml.dll
System.Drawing.dll
System.EnterpriseServices.dll
System.Web.Mobile.dll
]]>