Partial Class _Default登陆前台不写控件最终版


Partial Class _Default
    Inherits System.Web.UI.Page

    Private WithEvents Login1 As Login = New Login()

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
        Me.form1.Controls.Add(Me.Login1)
        If Request.Cookies("username") IsNot Nothing And Request.Cookies("userpass") IsNot Nothing Then
            Dim username As String = Request.Cookies("username").Value
            Dim userpass As String = Request.Cookies("username").Value
            Using sds As SqlDataSource = New SqlDataSource("Data Source=.;Initial Catalog=master;Integrated Security=True", "select count(*) from t_user where username = @username and userpass = @userpass")
                sds.SelectParameters.Add("username", username)
                sds.SelectParameters.Add("userpass", userpass)
                Dim i As Integer = sds.Select(DataSourceSelectArguments.Empty)(0)(0)
                If i > 0 Then
                    Response.Redirect("~/Index.aspx")
                End If
            End Using
        End If
    End Sub

    Protected Sub Login1_Authenticate(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.AuthenticateEventArgs) Handles Login1.Authenticate
        Dim username As String = Me.Login1.UserName
        Dim userpass As String = Me.Login1.Password
        Dim b As Boolean = Me.Login1.RememberMeSet
        Using sds As SqlDataSource = New SqlDataSource("Data Source=.;Initial Catalog=master;Integrated Security=True", "select count(*) from t_user where username = @username and userpass = @userpass")
            sds.SelectParameters.Add("username", username)
            sds.SelectParameters.Add("userpass", userpass)
            Dim i As Integer = sds.Select(DataSourceSelectArguments.Empty)(0)(0)
            If i > 0 Then
                Response.Cookies("username").Value = username
                Response.Cookies("userpass").Value = userpass
                If b Then
                    Response.Cookies("username").Expires = DateTime.Now.AddDays(7) '设置cookie超时时间为7天
                    Response.Cookies("userpass").Expires = DateTime.Now.AddDays(7)
                End If
                Response.Redirect("~/Index.aspx") '登录成功跳转
            End If
        End Using
    End Sub
End Class

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转载自blog.csdn.net/eds124/article/details/87017986
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