.net 登錄注冊參考代碼

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1、登錄usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Web;usingSystem.Web.UI;usingSystem.Web.UI.WebControls;usingSystem.Xml.Linq;usingSystem.Data.SqlClient;usingSystem.Data;publicpartialclass_Default:System.Web.UI.Page{protectedvoidPage_Load(objectsender,EventArgse

2、){}protectedvoidButton1_Click(objectsender,EventArgse){stringconnectionString=@"DataSource=.SQLEXPRESS;AttachDbFilename=C:UserslenovoDesktop王a?曉t玲￠¨￠App_DataDatabase.mdf;IntegratedSecurity=True;UserInstance=True";//創(chuàng)???建?§獲?取¨?數(shù)oy據(jù)Y庫a連￠?接¨?字á?符¤?串??，ê?并?é創(chuàng)???建?§數(shù)oy據(jù)Y庫a連￠?接¨?對?象¨

3、?stringsql="selectusername,passwordfromT1whereusername='"+TextBox1.Text+"'andpassword='"+TextBox2.Text+"'";SqlConnectionconn=newSqlConnection(connectionString);//實o|ì例¤y化?￥連￠?接¨?對?象¨?SqlCommandcmd=newSqlCommand(sql,conn);//執(zhí)??行D命¨1令￠?conn.Open();//打?¨°開a數(shù)oy據(jù)Y庫aSqlDataReaderr=cmd.Execut

4、eReader();if(r.Read())//從?¨?數(shù)oy據(jù)Y庫a讀¨￠取¨?用??戶?ì信?息?é,判D斷?是o?否¤?有?D記?錄?{Response.Write("");//Response.Redirect("Text.aspx");}else{//if(username.Trim()!=TextBox1.Text

6、

7、password.Trim()!=TextBox2.Text)//判D斷?用??戶?ì名?密¨1碼?是o?否¤?一°?致?{Response.Write("

8、cript>alert('用??戶?ì名?或¨°密¨1碼?錯?¨a誤¨?！ê?！ê?！ê?');");//Label5.Text="用??戶?ì名?或¨°密¨1碼?錯?¨a誤¨?,請?重?新?輸o?入¨?";//Response.Redirect("login.aspx");}}//else//{//Response.Write("");//}}protectedvoidButton2_Click(objectsender,EventArgse){Respon

9、se.Redirect("Register.aspx");//轉(zhuǎn)áa到ì?注á?é冊¨￠頁°3}}注冊usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Web;usingSystem.Web.UI;usingSystem.Web.UI.WebControls;usingSystem.Xml.Linq;usingSystem.Data.SqlClient;usingSystem.Data;usingSystem.Collections;usingSystem.Configu

10、ration;usingSystem.Web.UI.HtmlControls;usingSystem.Web.UI.WebControls.WebParts;publicpartialclassDefault3:System.Web.UI.Page{protectedvoidPage_Load(objectsender,EventArgse){}protectedvoidButton1_Click(objectsender,EventArgse){if(TextBox4.Text==String.Empty){Label4.Text="請?輸o?入¨?內(nèi)¨2容¨