Using the custom configuration section to modify the page style and background color. : New Section « Configuration « ASP.NET Tutorial






<%@ Page Language="C#" %>
<%@ Import Namespace="MyNamespace" %>
<%@ Import Namespace="System.Web.Configuration" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">

    void Page_Load()
    {
        DesignSection section = (DesignSection)WebConfigurationManager. GetWebApplicationSection("system.web/design");

        htmlBody.Attributes["bgcolor"] = System.Drawing.ColorTranslator.ToHtml (section.BackColor);

        HtmlLink link = new HtmlLink();
        link.Href = section.StyleSheetUrl;
        link.Attributes.Add("rel", "stylesheet");
        link.Attributes.Add("type", "text/css");
        Page.Header.Controls.Add(link);
    }
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
    <title>Show Design Section</title>
</head>
<body id="htmlBody" runat="server">
    <form id="form1" runat="server">
    <div>

    <h1>Custom Configuration Section Sample</h1>

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

File: Web.config

<configuration>
  <configSections>
    <sectionGroup name="system.web">
    <section
        name="design"
        type="MyNamespace.DesignSection"
        allowLocation="true"
        allowDefinition="Everywhere"/>
    </sectionGroup>
  </configSections>
  <system.web>
    <design
      backcolor="red"
      styleSheetUrl="~/styles/style.css"/>
  </system.web>
</configuration>








16.25.New Section
16.25.1.Creating Custom Configuration Sections by inheriting a new class from ConfigurationSection class
16.25.2.Using the custom configuration section to modify the page style and background color.
16.25.3.Creating a Configuration Element Collection