HostingEnvironment Class

Provides application-management functions and application services to a managed application within its application domain. This class cannot be inherited.

Namespace:  System.Web.Hosting
Assembly:  System.Web (in System.Web.dll)

[AspNetHostingPermissionAttribute(SecurityAction.LinkDemand, Level = AspNetHostingPermissionLevel.Minimal)]
public sealed class HostingEnvironment : MarshalByRefObject

Each managed application domain contains a static instance of the HostingEnvironment class, which provides access to application-management functions and application services.

The following code example is a Web page that displays the application information available from the HostingEnvironment object.

<%@ Page Language="C#" %>

<%@ Import Namespace="System.Web.Hosting" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">
  protected void Page_Load(object sender, EventArgs e)
  {
    appID.Text = HostingEnvironment.ApplicationID;
    appPPath.Text = HostingEnvironment.ApplicationPhysicalPath;
    appVPath.Text = HostingEnvironment.ApplicationVirtualPath;
    siteName.Text = HostingEnvironment.SiteName;
  }
</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
  <title>Hosting Environment Sample</title>
</head>
<body>
  <form id="form1" runat="server">
    <div>
      <table>
        <tr>
          <td colspan="2">
            <b>HostingEnvironment Properties</b></td>
        </tr>
        <tr>
          <td>
            Application ID:
          </td>
          <td>
            <asp:Label ID="appID" runat="server" />
          </td>
        </tr>
        <tr>
          <td>
            Application Physical Path:
          </td>
          <td>
            <asp:Label ID="appPPath" runat="server" />
          </td>
        </tr>
        <tr>
          <td>
            Application Virtual Path:
          </td>
          <td>
            <asp:Label ID="appVPath" runat="server" />
          </td>
        </tr>
        <tr>
          <td>
            Site Name:
          </td>
          <td>
            <asp:Label ID="siteName" runat="server" />
          </td>
        </tr>
      </table>
    </div>
  </form>
</body>
</html>

System.Object
  System.MarshalByRefObject
    System.Web.Hosting.HostingEnvironment

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 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

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

.NET Framework

Supported in: 3.5, 3.0, 2.0
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