Code behind

Hi this is my code for the login Button:
Protected Sub LoginButton_Click(ByVal sender As Object, ByVal e As System.EventArgs)
        Dim cls As New AppMaster
        Dim result As Boolean
        result = cls.btn(Login1.UserName, Login1.Password)
        If result = True Then
            If isadmin = 1 Then
                Response.Redirect("~/Admin/Default.aspx")
            Else
                Response.Redirect("~/user/user.aspx")
            End If
 &n ...