HttpRequest.AppRelativeCurrentExecutionFilePath Özellik

  • Başvuru

Tanım

Ad Alanı:
System.Web
Bütünleştirilmiş Kod:
System.Web.dll

Uygulama kökünün sanal yolunu alır ve uygulama kökü için tilde (~) gösterimini ("~/page.aspx" içinde olduğu gibi) kullanarak göreli hale getirir.

public:
 property System::String ^ AppRelativeCurrentExecutionFilePath { System::String ^ get(); };
public string AppRelativeCurrentExecutionFilePath { get; }
member this.AppRelativeCurrentExecutionFilePath : string
Public ReadOnly Property AppRelativeCurrentExecutionFilePath As String

Özellik Değeri

String

Geçerli istek için uygulama kökünün sanal yolu.

Örnekler

Aşağıdaki örnek, bir denetimin AppRelativeCurrentExecutionFilePath URL'sini Image sayfayla aynı dizindeki bir görüntüye ayarlamak için özelliğini kullanır. Sonuçta elde AppRelativeCurrentExecutionFilePath edilen özellik değerlerini görmek için bu sayfayı dizin yapısının farklı düzeylerinde çalıştırın.

<%@ 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>

<%@ Page Language="VB"%>

<!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 Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
        ' 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
    End Sub
    
</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>

Aşağıdaki örnek, program aracılığıyla sayfanın geçerli yoluna göre yolu bir kaynağa ayarlamak için özelliğini kullanır AppRelativeCurrentExecutionFilePath .

<%@ 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>

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

<script runat="server">

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)
        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/")) _
        Then
            Image2.ImageUrl = Request.ApplicationPath & _
                "/memberimages/Image1.gif"
        Else
            Image2.ImageUrl = Request.ApplicationPath & _
                "/guestimages/Image1.gif"
        End If
        Label4.Text = Image2.ImageUrl
    End Sub
</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>

Açıklamalar

Uygulama konumu değiştirse bile aynı kalacak URL bilgilerini sağlamak için bu özelliği kullanın. Bu, aynı URL eşleme kodunun bir test ortamında ve son dağıtım ortamında kullanılmasını veya farklı etki alanlarındaki Web uygulamalarının kopyaları tarafından kullanılmasını sağlar.

Şunlara uygulanır