SPControl Class

[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
[AspNetHostingPermissionAttribute(SecurityAction.InheritanceDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public class SPControl : Control, IDesignTimeHtmlProvider, 
	IDesignerEventAccessor

[Visual Basic .NET]
Dim siteCollection As SPSite = SPControl.GetContextSite(Context)
Dim site As SPWeb = SPControl.GetContextWeb(Context)
[C#]
SPSite siteCollection = SPControl.GetContextSite(Context); 
SPWeb site = SPControl.GetContextWeb(Context);