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. NET development-scan code registration and logon on the PC side,. netpc I. Preface The focus of this article is the implementation idea. The code and database design mainly aims to demonstrate the idea. If there are strict code efficiency requirements, do not copy them. I believe that developers have never done this much, but we generally do more authorization for mobile websites. Specifically, it is an authorization for terminals. One problem encou

Requirements:Page:Database SettingsMain programusingSystem;usingSystem.Data.SqlClient;usingSystem.Windows.Forms;namespacetest01{ Public Partial classForm1:form { PublicForm1 () {InitializeComponent (); } Private voidBtok_click (Objectsender, EventArgs e) {SqlConnection conn=NewSqlConnection ("server=pc201609230944\\sql2005;database=heimablog;user=sa;pwd=123456"); SqlCommand cmd=NewSqlCommand ("Select *,datediff (Minute,lasterrtime,getdate ()) from UserInfo where [

. The Web Site Administration tool is a set of predefined ASP. NET pages, users who do not have programming skills can use them to configure WEB applications. Using the membership API, programmers can easily use the drag control method, and then a small number of code, you can fully implement the user, role permissions, and so on, can also be customized to expand. Among them, the membership framework contains two default user validators: The default A