PasswordRecovery.OnVerifyingAnswer(LoginCancelEventArgs) 方法
定义
引发 VerifyingAnswer 事件。Raises the VerifyingAnswer event.
protected:
virtual void OnVerifyingAnswer(System::Web::UI::WebControls::LoginCancelEventArgs ^ e);
protected virtual void OnVerifyingAnswer (System.Web.UI.WebControls.LoginCancelEventArgs e);
abstract member OnVerifyingAnswer : System.Web.UI.WebControls.LoginCancelEventArgs -> unit
override this.OnVerifyingAnswer : System.Web.UI.WebControls.LoginCancelEventArgs -> unit
Protected Overridable Sub OnVerifyingAnswer (e As LoginCancelEventArgs)
参数
包含事件数据的 CancelEventArgs。A CancelEventArgs that contains the event data.
示例
下面的代码示例创建一个实现方法的自定义 PasswordRecovery 控件 OnVerifyingAnswer 。The following code example creates a custom PasswordRecovery control that implements the OnVerifyingAnswer method. 自定义类只调用方法的基实现 OnVerifyingAnswer 。The custom class merely calls the base implementation of the OnVerifyingAnswer 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">
class CustomPasswordRecovery : PasswordRecovery
{
override protected void OnVerifyingAnswer(System.Web.UI.WebControls.LoginCancelEventArgs e)
{
base.OnVerifyingAnswer(e);
}
}
// Add the custom password recovery control to the page.
void Page_Init(object sender, EventArgs e)
{
CustomPasswordRecovery passwordRecoveryControl = new CustomPasswordRecovery();
passwordRecoveryControl.ID = "passwordRecoveryControl";
PlaceHolder1.Controls.Add(passwordRecoveryControl);
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>ASP.NET Example</title>
</head>
<body>
<form id="form1" runat="server">
<p>
<asp:placeholder id="PlaceHolder1"
runat="server">
</asp:placeholder>
</p>
</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">
Class CustomPasswordRecovery
Inherits PasswordRecovery
Overloads Sub OnVerifyingAnswer(ByVal e As System.Web.UI.WebControls.LoginCancelEventArgs)
MyBase.OnVerifyingAnswer(e)
End Sub
End Class
' Add the custom password recovery control to the page.
Sub Page_Init(ByVal sender As Object, ByVal e As EventArgs)
Dim passwordRecoveryControl As New CustomPasswordRecovery
passwordRecoveryControl.ID = "passwordRecoveryControl"
PlaceHolder1.Controls.Add(passwordRecoveryControl)
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">
<p>
<asp:placeholder id="PlaceHolder1"
runat="server">
</asp:placeholder>
</p>
</form>
</body>
</html>
注解
在 OnVerifyingAnswer 用户对密码恢复确认问题的答案发送到要验证的成员资格提供程序之前,将调用方法。The OnVerifyingAnswer method is called before the user's answer to the password recovery confirmation question is sent to the membership provider to be verified. 默认实现将引发 VerifyingAnswer 事件。The default implementation raises the VerifyingAnswer event.
引发事件时,将通过委托调用事件处理程序。Raising an event invokes the event handler through a delegate. 有关详细信息,请参阅 处理和引发事件。For more information, see Handling and Raising Events.
OnVerifyingAnswer 方法还允许派生类对事件进行处理而不必附加委托。The OnVerifyingAnswer method also allows derived classes to handle the event without attaching a delegate. 这是在派生类中处理事件的首选技术。This is the preferred technique for handling the event in a derived class.
继承者说明
在派生类中重写 OnVerifyingAnswer(LoginCancelEventArgs) 时,一定要调用基类的 OnVerifyingAnswer(LoginCancelEventArgs) 方法,以便已注册的委托对事件进行接收。When overriding OnVerifyingAnswer(LoginCancelEventArgs) in a derived class, be sure to call the base class's OnVerifyingAnswer(LoginCancelEventArgs) method so that registered delegates receive the event.