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Style.Font Property

Gets the font properties associated with the Web server control.

Namespace:  System.Web.UI.WebControls
Assembly:  System.Web (in System.Web.dll)

public FontInfo Font { get; }

Property Value

Type: System.Web.UI.WebControls.FontInfo
A FontInfo that represents the font properties of the Web server control.

Use the Font property to specify the font properties of the Web server control. This property includes subproperties that can be accessed declaratively in the form of Property-Subproperty (for example Font-Bold) or programmatically in the form of Property.Subproperty (for example Font.Bold).

All but one subproperty will render in browsers prior to Microsoft Internet Explorer version 4 for all controls. They are: Bold, Italic, Name, Names, Strikeout, Underline, and Size (but only named font sizes, such as Small, Smaller, and so on, will work).

NoteNote

Although these subproperties render in browsers prior to Microsoft Internet Explorer version 4, the HTML that is rendered is different than in later browsers. Instead of rendering as style attributes, these subproperties are rendered as HTML elements, such as <b> and <font>.

One subproperty that will not render on some browsers is Overline.

This example demonstrates how to use a Style object to change the style properties of multiple controls at once. Each time one of the Style property values changes, each control must call its ApplyStyle method. Note that not all the controls included support all the properties demonstrated. If a control does not support a particular property, the appearance of the control will not change when the property value is changed.

NoteNote

The following code sample uses the single-file code model and may not work correctly if copied directly into a code-behind file. This code sample must be copied into an empty text file that has an .aspx extension. For more information on the Web Forms code model, see ASP.NET Web Forms Page Code Model.

<!--  -->


...


<%@ Page Language="C#" %>
<%@ Import Namespace="System.Drawing" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" 
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
    private Style primaryStyle = new Style();

    void Page_Load(object sender, System.EventArgs e)
    {
        if (!Page.IsPostBack)
        {
            // Add data to the borderColorList, 
            // backColorList, and foreColorList controls.
            ListItemCollection colors = new ListItemCollection();
            colors.Add(Color.Black.Name);
            colors.Add(Color.Blue.Name);
            colors.Add(Color.Green.Name);
            colors.Add(Color.Orange.Name);
            colors.Add(Color.Purple.Name);
            colors.Add(Color.Red.Name);
            colors.Add(Color.White.Name);
            colors.Add(Color.Yellow.Name);
            borderColorList.DataSource = colors;
            borderColorList.DataBind();
            backColorList.DataSource = colors;
            backColorList.DataBind();
            foreColorList.DataSource = colors;
            foreColorList.DataBind();

            // Add data to the borderStyleList control.
            ListItemCollection styles = new ListItemCollection();
            Type styleType = typeof(BorderStyle);
            foreach (string s in Enum.GetNames(styleType))
            {
                styles.Add(s);
            }
            borderStyleList.DataSource = styles;
            borderStyleList.DataBind();

            // Add data to the borderWidthList control.
            ListItemCollection widths = new ListItemCollection();
            for (int i = 0; i < 11; i++)
            {
                widths.Add(i.ToString() + "px");
            }
            borderWidthList.DataSource = widths;
            borderWidthList.DataBind();

            // Add data to the fontNameList control.
            ListItemCollection names = new ListItemCollection();
            names.Add("Arial");
            names.Add("Courier");
            names.Add("Garamond");
            names.Add("Times New Roman");
            names.Add("Verdana");
            fontNameList.DataSource = names;
            fontNameList.DataBind();

            // Add data to the fontSizeList control.
            ListItemCollection fontSizes = new ListItemCollection();
            fontSizes.Add("Small");
            fontSizes.Add("Medium");
            fontSizes.Add("Large");
            fontSizes.Add("10pt");
            fontSizes.Add("14pt");
            fontSizes.Add("20pt");
            fontSizeList.DataSource = fontSizes;
            fontSizeList.DataBind();

            //Set primaryStyle as the style for each control.
            Label1.ApplyStyle(primaryStyle);
            ListBox1.ApplyStyle(primaryStyle);
            Button1.ApplyStyle(primaryStyle);
            Table1.ApplyStyle(primaryStyle);
            TextBox1.ApplyStyle(primaryStyle);
        }
    }
    void ChangeBorderColor(object sender, System.EventArgs e)
    {
        primaryStyle.BorderColor =
            Color.FromName(borderColorList.SelectedItem.Text);
        Label1.ApplyStyle(primaryStyle);
        ListBox1.ApplyStyle(primaryStyle);
        Button1.ApplyStyle(primaryStyle);
        Table1.ApplyStyle(primaryStyle);
        TextBox1.ApplyStyle(primaryStyle);
    }

    void ChangeBackColor(object sender, System.EventArgs e)
    {
        primaryStyle.BackColor =
            Color.FromName(backColorList.SelectedItem.Text);
        Label1.ApplyStyle(primaryStyle);
        ListBox1.ApplyStyle(primaryStyle);
        Button1.ApplyStyle(primaryStyle);
        Table1.ApplyStyle(primaryStyle);
        TextBox1.ApplyStyle(primaryStyle);
    }

    void ChangeForeColor(object sender, System.EventArgs e)
    {
        primaryStyle.ForeColor =
            Color.FromName(foreColorList.SelectedItem.Text);
        Label1.ApplyStyle(primaryStyle);
        ListBox1.ApplyStyle(primaryStyle);
        Button1.ApplyStyle(primaryStyle);
        Table1.ApplyStyle(primaryStyle);
        TextBox1.ApplyStyle(primaryStyle);
    }

    void ChangeBorderStyle(object sender, System.EventArgs e)
    {
        primaryStyle.BorderStyle =
            (BorderStyle)Enum.Parse(typeof(BorderStyle),
            borderStyleList.SelectedItem.Text);
        Label1.ApplyStyle(primaryStyle);
        ListBox1.ApplyStyle(primaryStyle);
        Button1.ApplyStyle(primaryStyle);
        Table1.ApplyStyle(primaryStyle);
        TextBox1.ApplyStyle(primaryStyle);
    }

    void ChangeBorderWidth(object sender, System.EventArgs e)
    {
        primaryStyle.BorderWidth =
            Unit.Parse(borderWidthList.SelectedItem.Text);
        Label1.ApplyStyle(primaryStyle);
        ListBox1.ApplyStyle(primaryStyle);
        Button1.ApplyStyle(primaryStyle);
        Table1.ApplyStyle(primaryStyle);
        TextBox1.ApplyStyle(primaryStyle);
    }

    void ChangeFont(object sender, System.EventArgs e)
    {
        primaryStyle.Font.Name =
            fontNameList.SelectedItem.Text;
        Label1.ApplyStyle(primaryStyle);
        ListBox1.ApplyStyle(primaryStyle);
        Button1.ApplyStyle(primaryStyle);
        Table1.ApplyStyle(primaryStyle);
        TextBox1.ApplyStyle(primaryStyle);
    }

    void ChangeFontSize(object sender, System.EventArgs e)
    {
        primaryStyle.Font.Size =
            FontUnit.Parse(fontSizeList.SelectedItem.Text);
        Label1.ApplyStyle(primaryStyle);
        ListBox1.ApplyStyle(primaryStyle);
        Button1.ApplyStyle(primaryStyle);
        Table1.ApplyStyle(primaryStyle);
        TextBox1.ApplyStyle(primaryStyle);
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>

    <table cellpadding="6" border="0">
        <tr>
            <td rowspan="10" style="border:solid 1px Gray">
                <p>
                    <asp:label id="Label1" 
                        Text="Border Properties Example" Runat="server">
                        Label Styles
                    </asp:label>
                </p>
                <p>
                    <asp:button id="Button1" runat="server" 
                        Text="Button Styles">
                    </asp:button>
                </p>
                <p>
                    <asp:listbox id="ListBox1" Runat="server">
                        <asp:ListItem Value="0" Text="List Item 0">
                        </asp:ListItem>
                        <asp:ListItem Value="1" Text="List Item 1">
                        </asp:ListItem>
                        <asp:ListItem Value="2" Text="List Item 2">
                        </asp:ListItem>
                    </asp:listbox>
                </p>
                <p>
                    <asp:textbox id="TextBox1" 
                        Text="TextBox Styles" Runat="server">
                    </asp:textbox>
                </p>
                <p>
                    <asp:table id="Table1" Runat="server">
                        <asp:TableRow>
                            <asp:TableCell Text="(0,0)"></asp:TableCell>
                            <asp:TableCell Text="(0,1)"></asp:TableCell>
                        </asp:TableRow>
                        <asp:TableRow>
                            <asp:TableCell Text="(1,0)"></asp:TableCell>
                            <asp:TableCell Text="(1,1)"></asp:TableCell>
                        </asp:TableRow>
                    </asp:table>
                </p>
            </td>
            <td align="right">
                <asp:Label ID="Label2" runat="server" 
                    AssociatedControlID="borderColorList" 
                    Text="Border Color:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="borderColorList" 
                    Runat="server" AutoPostBack="True" 
                    OnSelectedIndexChanged="ChangeBorderColor">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label3" Runat="server" 
                    AssociatedControlID="borderStyleList"
                    Text="Border Style:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="borderStyleList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeBorderStyle">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label4" Runat="server" 
                    AssociatedControlID="borderWidthList"
                    Text="Border Width">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="borderWidthList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeBorderWidth">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label5" Runat="server" 
                    AssociatedControlID="backColorList"
                    Text="Back Color:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="backColorList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeBackColor">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label6" Runat="server" 
                    AssociatedControlID="foreColorList"
                    Text="Foreground Color:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="foreColorList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeForeColor">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label7" Runat="server" 
                    AssociatedControlID="fontNameList"
                    Text="Font Name:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="fontNameList" 
                    Runat="server" AutoPostBack="True"
                    OnSelectedIndexChanged="ChangeFont">
                </asp:dropdownlist>
            </td>
        </tr>
        <tr>
            <td align="right">
                <asp:Label ID="Label8" Runat="server" 
                    AssociatedControlID="fontSizeList"
                    Text="Font Size:">
                </asp:Label>
            </td>
            <td>
                <asp:dropdownlist id="fontSizeList" 
                    Runat="server" AutoPostBack="True" 
                    OnSelectedIndexChanged="ChangeFontSize">
                </asp:dropdownlist>
            </td>
        </tr>
    </table>

    </div>
    </form>
</body>
</html>

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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