Page.Theme Property

Gets or sets the name of the page theme.

Namespace: System.Web.UI
Assembly: System.Web (in system.web.dll)

public virtual string Theme { get; set; }
/** @property */
public String get_Theme ()

/** @property */
public void set_Theme (String value)

public function get Theme () : String

public function set Theme (value : String)

Not applicable.

Property Value

The name of the page theme.

Exception typeCondition


An attempt was made to set Theme after the PreInit event has occurred.


Theme is set to an invalid theme name.

The Theme property sets the name of the theme used for the page.

The Theme property must be set prior to the PreInit event; setting the Theme property after the PreInit event will cause an InvalidOperationException exception.

The specified theme must exist as either an application or a global theme. If the theme does not exist, an HttpException exception s thrown.

How to: Apply ASP.NET Themes ProgrammaticallyBuilding ASP .NET Web Applications
How to: Apply ASP.NET Themes ProgrammaticallyBuilding ASP .NET Web Applications

The following code example sets the Theme property to a name passed in the query string.

void Page_PreInit(object sender, EventArgs e)
  // Get the theme name from a QueryString variable
  string ThemeName;
  ThemeName = Request.QueryString["thename"];
  if (ThemeName != null)
    Page.Theme = ThemeName;

Windows 98, Windows Server 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0