【正文】 =宋體/FONT /div/TD/TRTRTD colSpan=2 bgcolor=0099ff align=middleFONT face=宋體asp:Button id=Btn_exit runat=server Text=退出 onclick=Btn_exit_Click/asp:Button/FONT/TD/TR/TABLE/form/body/HTML（3）頁面的初始化代碼如下：protected void Page_Load(object sender, e){ teacherinfo Tinfo =new teacherinfo()。 string teacher_id = Session[User_id].ToString()。 DataTable DT = (teacher_id)。=DT。()。}19 成績錄入頁面（1）成績錄入頁面 的設計窗體如圖 117 所示，用來錄入學生的成績。圖 117 成績錄入頁面 （2）頁面的 HTML 代碼如下：%@ Page language=c Inherits= CodeFile= %!DOCTYPE HTML PUBLIC //W3C//DTD HTML Transitional//EN HTMLHEADtitleaddgrade/titlemeta content=Microsoft Visual Studio name=GENERATORmeta content=C name=CODE_LANGUAGEmeta content=JavaScript name=vs_defaultClientScriptmeta content= name=vs_targetSchema/HEADbodyform action= method=post runat=serverTABLE id=Table1 cellSpacing=1 cellPadding=1 width=80% align=center border=1TRTD bgColor=6699ffP align=centerFONT face=宋體 size=6STRONG 成績錄入/STRONG/FONT/P/TD/TRTRTD style=HEIGHT: 220px20TABLE id=Table2 cellSpacing=1 cellPadding=1 width=80% align=center bgColor=f5f5f5 border=1TRTD style=WIDTH: 130px align=rightFONT face=宋體EM學號：/EM/FONT/TDTDasp:textbox id=Tbx_studentid runat=server Width=133px AutoPostBack=True ontextchanged=Tbx_studentid_TextChanged/asp:textboxasp:customvalidator id=Cv_id runat=server ControlToValidate=Tbx_studentid ErrorMessage=無此學生！/asp:customvalidator/TD/TRTRTD style=WIDTH: 130px align=rightFONT face=宋體EM課程：/EM/FONT/TDTDasp:dropdownlist id=Ddl_course runat=server Width=108px OnSelectedIndexChanged=Ddl_course_SelectedIndexChanged/asp:dropdownlist/TD/TRTRTD style=WIDTH: 130px align=rightFONT face=宋體EM年度：/EM/FONT/TDTDasp:textbox id=Tbx_term runat=server Width=134px/asp:textboxFONT face=宋體 color=ff0000 size=2例：2022－2022/FONT/TD/TRTRTD style=WIDTH: 130px align=rightFONT face=宋體EM成績：/EM/FONT/TDTDasp:textbox id=Tbx_grade runat=server Width=135px/asp:textbox/TD/TRTRTD style=WIDTH: 130px/TDTDasp:button id=Btn_add runat=server Text=錄入 onclick=Btn_add_Click/asp:buttonFONT face=宋體 /FONTasp:label id=Lbl_note runat=server/asp:label/TD/TR/TABLEdiv align=centerFONT face=宋體/FONT /div/TD21/TRTR bgColor=ccccccTD align=middle bgcolor=6699ffasp:button id=Btn_exit runat=server Text=退出 onclick=Btn_exit_Click/asp:button/TD/TR/TABLE/form/body/HTML（3）事件的實現源代碼如下：using System。using 。using 。using 。using 。using 。using 。using 。using 。using 。using 。using 。namespace sms{public partial class addgrade : {protected void Page_Load(object sender, e)region Web Form Designer generated codeoverride protected void OnInit(EventArgs e){InitializeComponent()。(e)。}private void InitializeComponent(){ += new ()。}endregionprotected void Btn_add_Click(object sender, e){ string strsql = update student_course set 22Student_grade=39。++39。 where Student_id=39。++39。 and Course_id=39。+ + 39。and Course_year=39。 + +39。 DataAccess DataAs = new DataAccess()。 bool Result = (strsql)。 if (!Result){=添加失敗。[color]=red。}}protected void Btn_exit_Click(object sender, e)private void Cv_id_ServerValidate(object source, args){string strsql=select * from student where Student_id=39。++39。 DataAccess DataAs = new DataAccess()。 DataTable DT = (strsql)。if(0){=true。}else{=false。}}protected void Tbx_studentid_TextChanged(object sender, e){string mysql1=select course.* from student_course,course where =39。++39。and =。 DataAccess DataAs = new DataAccess()。 DataTable DT = (mysql1)。 for (int i = 0。 i 。i++ ) { (new ListItem([i][1].ToString(),[i][0].ToString()))。 }} protected void Ddl_course_SelectedIndexChanged(object sender, EventArgs e)}}