Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Theme Property
Collapse the table of content
Expand the table of content

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 Value

Type: System.String
The name of the page theme.


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. 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 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 is 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;

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0
© 2015 Microsoft