WebForm Registration Interface

usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Text.RegularExpressions;usingsystem.web;usingSystem.Web.UI;usingSystem.Web.UI.WebControls; Public Partial classzhuce:system.web.ui.page{protected voidPage_Load (Objectsender, EventArgs e) {        if(! IsPostBack)//determine if a postback is in response{Insert ("0001"); }           }    //linkage    protected voidDropdownlistsheng_selectedindexchanged (Objectsender, EventArgs e) {        stringCode =DropDownListSheng.SelectedItem.Value; List<ChinaStates> Listshi =NewCHINASTATESDA ().        Selectbyparentareacode (Code); Dropdownlistshi.datasource=Listshi; Dropdownlistshi.datatextfield="AreaName"; Dropdownlistshi.datavaluefield="AreaCode";        Dropdownlistshi.databind ();    Updatepanel1.update (); }    //the area of the initial load page is displayed     Public voidInsert (stringParentcode) {List<ChinaStates> Listsheng =NewCHINASTATESDA ().        Selectbyparentareacode (Parentcode); Dropdownlistsheng.datasource=Listsheng; Dropdownlistsheng.datatextfield="AreaName"; Dropdownlistsheng.datavaluefield="AreaCode";        Dropdownlistsheng.databind (); List<ChinaStates> Listshi =NewCHINASTATESDA (). Selectbyparentareacode (" One"); Dropdownlistshi.datasource=Listshi; Dropdownlistshi.datatextfield="AreaName"; Dropdownlistshi.datavaluefield="AreaCode";        Dropdownlistshi.databind (); List<ChinaStates> Listdiqu =NewCHINASTATESDA (). Selectbyparentareacode ("1101"); Dropdownlistddiqu.datasource=Listdiqu; Dropdownlistddiqu.datatextfield="AreaName"; Dropdownlistddiqu.datavaluefield="AreaCode";    Dropdownlistddiqu.databind (); }    //Regional Linkage    protected voidDropdownlistshi_selectedindexchanged (Objectsender, EventArgs e) {        stringCode =DropDownListShi.SelectedItem.Value; List<ChinaStates> Listdiqu =NewCHINASTATESDA ().        Selectbyparentareacode (Code); Dropdownlistddiqu.datasource=Listdiqu; Dropdownlistddiqu.datatextfield="AreaName"; Dropdownlistddiqu.datavaluefield="AreaCode";        Dropdownlistddiqu.databind ();    Updatepanel1.update (); }    //trigger when user name text changes    protected voidTxtuser_textchanged (Objectsender, EventArgs e) {        if(Txtuser. text.length<4) {Labeluser.text="User name length cannot be less than 4"; }        Else        {            BOOLisOK =NewUSERSDA (). Checkusersname (Txtuser.            Text); if(isOK) {Labeluser.text="√"; }            Else{Labeluser.text="X"; }        }    }    //trigger when name text changes    protected voidTxtname_textchanged (Objectsender, EventArgs e) {        if(txtname. text.length<4) {labelName.Text="User name length cannot be less than 4"; }        Else{labelName.Text="√"; }    }    //trigger when password text changes    protected voidTxtpwd_textchanged (Objectsender, EventArgs e) {        if(Txtpwd. text.length<6) {Labelpwd.text="password length cannot be less than 6 bits"; }        Else{Labelpwd.text="√"; }    }    //Determine if the password is consistent    protected voidTxtpwd2_textchanged (Objectsender, EventArgs e) {        if(TXTPWD2. text==txtpwd. Text) {Labelpwd2.text="√"; }        Else{Labelpwd2.text="two times password inconsistency"; }    }    //Register button    protected voidButton1_Click (Objectsender, EventArgs e) {        Try{Users P=NewUsers (); P.usersname=Txtuser.            Text; P.name=txtname.            Text; P.pwd=txtpwd.            Text; P.account=Txtpwd2.            Text; P.sex= Radiobutton1.checked = =true?"male":"female"; P.home= DropDownListSheng.SelectedItem.Text + DropDownListShi.SelectedItem.Text +DropDownListDdiqu.SelectedItem.Text; P.brithday=DateTime.Parse (Txtbir.            Text); P.tel=Txttel.            Text; P.QQ=txtqq.            Text; P.email=Txtemail.            Text; NewUSERSDA ().            Insert (P); varRe =Base.            Response; Re. Redirect ("loginss.aspx"); }        Catch(Exception) {Response.Write ("<script>alert (' Wrong fill in information ') </script>"); }        finally        {            varRe =Base.            Response; Re. Redirect ("zhuce.aspx"); }    }    //determine mailbox input format    protected voidTxtemail_textchanged (Objectsender, EventArgs e) {MatchCollection MC= Regex.Matches (txtemail. Text.tostring (). Trim (),@"[a-za-z0-9_\-\.] [Email protected]\w+ (\.\w+) +"); if(mc!=NULL)        {                    }        Else{Labelemail.text="The mailbox format is not correct"; }    }}

WebForm Registration Interface