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Login.OnAuthenticate(AuthenticateEventArgs) Metode

  • Referensi

Definisi

Ruang nama:
System.Web.UI.WebControls
Rakitan:
System.Web.dll

Menaikkan Authenticate peristiwa untuk mengautentikasi pengguna.

protected:
 virtual void OnAuthenticate(System::Web::UI::WebControls::AuthenticateEventArgs ^ e);
protected virtual void OnAuthenticate (System.Web.UI.WebControls.AuthenticateEventArgs e);
abstract member OnAuthenticate : System.Web.UI.WebControls.AuthenticateEventArgs -> unit
override this.OnAuthenticate : System.Web.UI.WebControls.AuthenticateEventArgs -> unit
Protected Overridable Sub OnAuthenticate (e As AuthenticateEventArgs)

Parameter

e
AuthenticateEventArgs

Yang AuthenticateEventArgs berisi data peristiwa.

Contoh

Contoh kode berikut menggunakan Authenticate peristiwa untuk memanggil kode autentikasi kustom khusus situs.

<%@ 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">
    // This custom login control overloads the OnAuthenticate method
    // to call a site-specific authentication method.    
    class CustomLogin : Login
    {
        private bool SiteSpecificAuthenticationMethod(string UserName, string Password)
        {
            // Insert code that implements a site-specific custom 
            // authentication method here.
            //
            // This example implementation always returns false.
            return false;
        }
        
        override protected void OnAuthenticate(AuthenticateEventArgs e)
        {
            bool Authenticated = false;
            Authenticated = SiteSpecificAuthenticationMethod(UserName, Password);

            e.Authenticated = Authenticated;
        }
    }
    
    // Add the custom login control to the page.
    void Page_Load(object sender, EventArgs e) 
    {
        CustomLogin loginControl = new CustomLogin();
        loginControl.ID = "loginControl";
        Placeholder1.Controls.Add(loginControl);
    }

</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
    <head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
        <form id="form1" runat="server">
            <asp:placeholder id="Placeholder1" runat="server"></asp:placeholder>
        </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">
    ' This custom login control overloads the OnAuthenticate method
    ' to call a site-specific authentication method.
    Class CustomLogin
        Inherits Login
        
        Private Function SiteSpecificAuthenticationMethod(ByVal UserName As String, ByVal Password As String) As Boolean
            ' Insert code that implements a site-specific custom 
            ' authentication method here.
            '
            ' This example implementation always returns false.
            Return False
        End Function
    
        Overloads Sub OnAuthenticate(ByVal e As AuthenticateEventArgs)
            Dim Authenticated As Boolean
            Authenticated = SiteSpecificAuthenticationMethod(UserName, Password)

            e.Authenticated = Authenticated
        End Sub
    End Class
    
    ' Add the custom login control to the page.
    Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
        Dim loginControl As New CustomLogin

        loginControl.ID = "loginControl"

        PlaceHolder1.Controls.Add(loginControl)
    End Sub

</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>ASP.NET Example</title>
</head>
<body>
<form id="form1" runat="server">
    <asp:placeholder id="PlaceHolder1" runat="server"></asp:placeholder>

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

Keterangan

Metode ini OnAuthenticate meningkatkan Authenticate peristiwa. Authenticate Gunakan peristiwa untuk menerapkan skema autentikasi kustom.

Menaikkan peristiwa memanggil penanganan aktivitas melalui delegasi. Untuk informasi selengkapnya, lihat Menangani dan Meningkatkan Peristiwa.

Metode ini OnAuthenticate juga memungkinkan kelas turunan untuk menangani peristiwa tanpa melampirkan delegasi. Ini adalah teknik yang disukai untuk menangani peristiwa di kelas turunan.

Catatan Bagi Inheritor

Saat mengambil alih di kelas turunan OnAuthenticate(AuthenticateEventArgs) , pastikan untuk memanggil metode kelas OnAuthenticate(AuthenticateEventArgs) dasar sehingga delegasi terdaftar menerima peristiwa tersebut.

Berlaku untuk

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