StyleSheet Class

Organizes styles that will be applied to other controls.

Namespace: System.Web.UI.MobileControls
Assembly: System.Web.Mobile (in

public class StyleSheet : MobileControl
public class StyleSheet extends MobileControl
public class StyleSheet extends MobileControl

A StyleSheet control can contain any number of style objects, or more specialized style objects that inherit from the Style class. These should have unique name properties. You can then refer to other controls on the same page by their Name property. This class has no visual representation.

A page can also use an external style sheet, and several pages can share the same external style sheet. For more information about styles, refer to the <Style> Element element and the Styles topic.


The StyleSheet control ignores its own style attributes; setting a style attribute on the StyleSheet itself has no effect on the styles contained as children within the StyleSheet control.

The following example shows how you can add Style properties to a StyleSheet control during the Page_Load event.

<%@ Page Language="C#" 
    Inherits="System.Web.UI.MobileControls.MobilePage" %>
<%@ Register TagPrefix="mobile" 
    Assembly="System.Web.Mobile" %>
<%@ Import Namespace="System.Web.UI.MobileControls" %>
<%@ Import Namespace="System.Drawing" %>

<script runat="server">
    protected void Page_Load(Object sender, EventArgs e)
        if (!IsPostBack)
            StyleSheet1["Style1"].ForeColor = Color.Red;
            StyleSheet1["Style1"].Font.Size = 
            StyleSheet1["Style1"].Font.Bold = BooleanOption.True;
            StyleSheet1["Style1"].Font.Italic = BooleanOption.True;
            StyleSheet1["Style2"].ForeColor = Color.Blue;
            StyleSheet1["Style2"].Font.Size = 
            StyleSheet1["Style2"].Font.Bold = BooleanOption.False;
            StyleSheet1["Style2"].Font.Italic = BooleanOption.True;
            StyleSheet1["Style3"].ForeColor = Color.Green;
            StyleSheet1["Style3"].Font.Size = 
            StyleSheet1["Style3"].Font.Bold = BooleanOption.False;
            StyleSheet1["Style3"].Font.Italic = BooleanOption.False;

    void SelectStyle(object sender, EventArgs e)
        // Retrieve the style name as a string.
        String myStyle = SelectionList1.Selection.ToString();

        // Match the style name and apply the style to TextView1.
        switch (myStyle)
            case "hot":
                TextView1.StyleReference = "Style1";
            case "medium":
                TextView1.StyleReference = "Style2";
            case "mild":
                TextView1.StyleReference = "Style3";

<html xmlns="" >
    <mobile:StyleSheet id="StyleSheet1" runat="server">
        <mobile:Style Name="Style1" Font-Name="Arial"
            BackColor="#E0E0E0" Wrapping="Wrap">
        <mobile:Style Name="Style2" Font-Name="Arial"
            BackColor="blue" Wrapping="NoWrap">
        <mobile:Style Name="Style3" Font-Name="Arial Narrow"
            BackColor="Green" Wrapping="NoWrap">

    <mobile:Form id="Form1" runat="server">
        <mobile:Label id="Label1" runat="server" 
            Text="Today's Special" StyleReference="title" />
        <mobile:TextView id="TextView1" runat="server" 
        <mobile:SelectionList runat="server" id="SelectionList1">
           <item Text="hot" Value="hot"/>
           <item Text="medium" Value="medium"/>
           <item Text="mild" Value="mild"/>
        <mobile:Command ID="Command1" runat="server" 
           Text="Select Style" OnClick="SelectStyle" />

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Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0, 1.1

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