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HttpRequest.AppRelativeCurrentExecutionFilePath Property

Gets the virtual path of the application root and makes it relative by using the tilde (~) notation for the application root (as in "~/page.aspx").

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

public string AppRelativeCurrentExecutionFilePath { get; }

Property Value

Type: System.String
The virtual path of the application root for the current request.

Use this property to provide URL information that will stay the same even if the application changes location. This allows the same URL-mapping code to be used in a test environment and in the final deployment environment, or to be used by copies of Web applications in different domains.

The following example uses the AppRelativeCurrentExecutionFilePath property to set the URL of an Image control to an image in the same directory as the page. Run this page at different levels of a directory structure to see the resulting AppRelativeCurrentExecutionFilePath property values.

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

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">

<script runat="server">

    protected void Page_Load(object sender, EventArgs e)
    {
        // Get an image that is in the same directory as the currently executing control.
        Image1.ImageUrl = 
            VirtualPathUtility.GetDirectory(Request.AppRelativeCurrentExecutionFilePath) 
            + "image1.jpg";
        Label1.Text = "App-relative Image URL = " + Image1.ImageUrl;
    }
</script>

<head id="Head1" runat="server">
    <title>HttpRequest AppRelativeCurrentExecutionFilePath</title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
          <asp:Image ID="Image1" runat="server" /><br />
            <asp:Label ID="Label1" runat="server" />
        </div>
    </form>
</body>
</html>

The following example uses the AppRelativeCurrentExecutionFilePath property to programmatically set the path to a resource, based on the current path of the page.

<%@ Page Language="C#" %>
<!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)
    {
        Label1.Text = Request.ApplicationPath;
        Image1.ImageUrl = Request.ApplicationPath + "/images/Image1.gif";
        Label2.Text = Image1.ImageUrl;

        Label3.Text = Request.AppRelativeCurrentExecutionFilePath;
        if (VirtualPathUtility.GetDirectory(
            Request.AppRelativeCurrentExecutionFilePath).Equals("~/Members/"))
        {
            Image2.ImageUrl = Request.ApplicationPath +
                "/memberimages/Image1.gif";
        }
        else
        {
            Image2.ImageUrl = Request.ApplicationPath +
            "/guestimages/Image1.gif";
        }
        Label4.Text = Image2.ImageUrl;
    }
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>HttpRequest.ApplicationPath Example</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        This is the ApplicationPath from the current page:<br />
        <asp:Label ID="Label1" runat="server" ForeColor="Brown" /><br />
        Use it to link to resources at fixed locations in the application.<br />
        <asp:Image ID="Image1" runat="server" />
        <asp:Label ID="Label2" runat="server" ForeColor="Brown" />
        <br /><br />
        This is the AppRelativeCurrentExecutionFilePath to the current page:<br />
        <asp:Label ID="Label3" runat="server" ForeColor="Brown" /><br />
        Use it to help programatically construct links to resources based on the location of the current page.<br />
        <asp:Image ID="Image2" runat="server" />
        <asp:Label ID="Label4" runat="server" ForeColor="Brown" />
        </div>
    </form>
</body>
</html>

.NET Framework

Supported in: 4.6, 4, 3.5, 3.0, 2.0

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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