Gets or sets the name of the page theme.
Assembly: System.Web (in System.Web.dll)
The property sets the name of the theme used for the page. If you want the settings on the page to take precedence over the settings in the theme, use the StyleSheetTheme property. For more information, see ASP.NET Themes and Skins.
The specified theme must exist as either an application or a global theme. If the theme does not exist, an HttpException exception is thrown.
The following code example sets the property to a name passed in the query string.