แก้ไข

แชร์ผ่าน

Login.UserName Property

  • Reference

Definition

Namespace:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Gets the user name entered by the user.

public:
 virtual property System::String ^ UserName { System::String ^ get(); void set(System::String ^ value); };
public virtual string UserName { get; set; }
member this.UserName : string with get, set
Public Overridable Property UserName As String

Property Value

String

The user name entered by the user. The default is Empty.

Examples

The following code example passes the UserName property to a custom authentication method.

<%@ 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">
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;
}

private void OnAuthenticate(object sender, AuthenticateEventArgs e)
{
    bool Authenticated = false;
    Authenticated = SiteSpecificAuthenticationMethod(Login1.UserName, Login1.Password);

    e.Authenticated = Authenticated;
}

</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:Login id="Login1" runat="server"
                OnAuthenticate="OnAuthenticate">
            </asp:Login>
        </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">
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

Sub OnAuthenticate(ByVal sender As Object, ByVal e As AuthenticateEventArgs)
    Dim Authenticated As Boolean
    Authenticated = SiteSpecificAuthenticationMethod(Login1.UserName, Login1.Password)

    e.Authenticated = Authenticated
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:Login id="Login1" runat="server"
                OnAuthenticate="OnAuthenticate">
            </asp:Login>

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

Remarks

The UserName property contains the user name entered by the user. Login control properties represented by text boxes, such as UserName and Password, are accessible during all phases of the page life cycle. The control will pick up any changes made by the end user by means of the TextChanged event triggered by the textboxes.

Applies to

See also