学生信息管理系统-系统源代码

1、系统源代码 一、登录界面代码 using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlCl

2、ient; public partial class login : System.Web.UI.Page protected void txtid_Click(object sender, EventArgs e) txtid.Text = ; txtpassword.Text = ; protected void Button1_Click(object sender, EventArgs e) string strconn = ConfigurationManager.AppSettingsconnStr; SqlConnection conn = new SqlConnection(s

3、trconn); conn.Open(); DataSet ds=new DataSet () ; SqlDataAdapter da = new SqlDataAdapter(select * from users where userid= + txtid.Text + and userpwd= + txtpassword.Text + , conn); da.Fill(ds); if (ds.Tables0.Rows.Count=0) Label3 .Text = 账号或密码错误，请重新输入！ else Session userid=txtid .Text ; Sessionuserpw

4、d = txtpassword.Text; Sessionusername = ds.Tables0.Rows0username.ToString(); Sessionuserpower = ds.Tables0.Rows0userpower.ToString(); if (Sessionuserpower.ToString () = 0) Response.Redirect(admin/index.aspx); else if (Sessionuserpower.ToString() = 1) Response.Redirect(student/index.aspx); else Label

5、3.Text = 对不起，权限验证失败 ; conn.Close(); ds.Clear (); 、添加课程页面代码 using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.

6、Web.UI.HtmlControls; using System.Data.SqlClient; public partial class addcourse : System.Web.UI.Page SqlCommand mycmd; SqlConnection conn; protected void Page_Load(object sender, EventArgs e) courseid.Attributes.Add(onblur, checkcourseid(); string strconn = ConfigurationManager.AppSettingsconnStr;

7、conn = new SqlConnection(strconn); protected void Button1_Click(object sender, EventArgs e) if (courseid.Text.ToString() = ) Label7.Text = 课程号不能为空 ; else string sqlstr = sqlstr = insert into course(courseid,coursename,coursetime,fen,type,teacher)values( coursename.Text + , + coursetime.Text + , + fe

8、n.Text + , + teacher.Text + ); conn.Open(); mycmd = new SqlCommand(sqlstr, conn); mycmd.Dispose(); try mycmd.ExecuteNonQuery(); Response.Write(javascript:alert( catch (SqlException) Response.Write(javascript:alert( finally conn.Close(); sqlstr = ; protected void Button2_Click(object sender, EventArg

9、s e) courseid.Text = ; + courseid.Text + , + type.Text + , + 添加成功 !);); 添加失败 !);); coursename.Text = coursetime.Text = fen.Text = type.Text = protected void Button3_Click(object sender, EventArgs e) Response.Redirect(course.aspx); 三、添加成绩程序代码 using System; using System.Data; using System.Configuratio

10、n; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; public partial class addscore : System.Web.UI.Page SqlCommand mycmd

11、; SqlConnection conn; protected void Page_Load(object sender, EventArgs e) string strconn = ConfigurationManager.AppSettingsconnStr; conn = new SqlConnection(strconn); protected void Button1_Click(object sender, EventArgs e) if (userid.SelectedValue .ToString ()= ) Label11.Text = 学号不能为空 ; else strin

12、g sqlstr = ; sqlstr = insert into score(userid,username,courseid,coursename,score,year)values( + userid.SelectedValue + , + username.Text + , + txtcourseid.SelectedValue + , + coursename.Text + , + score.Text + , + txtyear.SelectedValue + ); conn.Open(); mycmd = new SqlCommand(sqlstr, conn); mycmd.D

13、ispose(); try mycmd.ExecuteNonQuery(); Response.Write(javascript:alert( 添加成功 !);); catch (SqlException) Response.Write(javascript:alert( 添加失败 !);); finally conn.Close(); sqlstr = ; protected void Button2_Click(object sender, EventArgs e) username.Text = ; coursename.Text = ; score.Text = ; txtyear.T

14、ext = ; protected void Button3_Click(object sender, EventArgs e) Response.Redirect(score.aspx); protected void userid_SelectedIndexChanged(object sender, EventArgs e) string sqlstr = ; sqlstr = select username from students where userid= + userid.SelectedValue + conn.Open(); mycmd = new SqlCommand(s

15、qlstr, conn); mycmd.Dispose(); SqlDataReader da; da = mycmd.ExecuteReader(); while (da.Read() username.Text = dausername.ToString(); protected void txtcourseid_SelectedIndexChanged(object sender, EventArgs e) string sqlstr = ; sqlstr = select coursename from course where courseid= + txtcourseid.Sele

16、ctedValue + ; conn.Open(); mycmd = new SqlCommand(sqlstr, conn); mycmd.Dispose(); SqlDataReader da; da = mycmd.ExecuteReader(); while (da.Read() coursename.Text = dacoursename.ToString(); 四、添加学生程序代码 using System; using System.IO; using System.Text; using System.Data; using System.Configuration; usin

17、g System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; public partial class addstudent : System.Web.UI.Page SqlCommand mycmd; pro

18、tected void Page_Load(object sender, EventArgs e) userid.Attributes.Add(onblur, checkuserid(); string strconn = ConfigurationManager.AppSettingsconnStr; SqlConnection conn = new SqlConnection(strconn); protected void Button1_Click(object sender, EventArgs e) if (userid.Text.ToString() = ) return; st

19、ring strconn = ConfigurationManager.AppSettingsconnStr; SqlConnection conn = new SqlConnection(strconn); string sqlstr = ; string sql = ; sqlstr = insert into students(userid,username,sex,minzu,birthday,class,comefrom,beizhu,xuey,zhuany,tel,idc,zh engzmm,zhiw,huoj,weij)values( + userid.Text + , + tx

20、tusername.Text + , + txtsex.SelectedItem.Value + , + txtminzu.Text + , + txtbirthday.Text + , + txtclass.Text + , + txtcomefrom.Text + , + txtbeizhu.Text + , + txtxuey.SelectedValue + , + txtzhuany.SelectedValue + , + txttel.Text + , + txtidc.Text + , + txtzzmm.SelectedValue + , + txtzhiw.Text + , +

21、 txthuoj.Text + , + txtweij.Text + ); conn.Open(); mycmd = new SqlCommand(sqlstr, conn); mycmd.Dispose(); string name = this. 获取上传文件的名称 string type = name.Substring(name.LastIndexOf() + 1);/获取上传文件的后 缀 string ipath = Server.MapPath(images/) + DateTime.Now.ToString(yyyyMMddhhmmss) + name; string wpath

22、 = images + DateTime.Now.ToString(yyyyMMddhhmmss) + name; string query1 = insert into images(userid,path) values( + userid.Text + ,path); (ipath);/ 服务器保存路径 SqlCommand cm = new SqlCommand(query1); cm.Connection = conn; cm.Parameters.Add(path, SqlDbType.VarChar, 50); cm.Parameterspath.Value = wpath; c

23、m.ExecuteNonQuery(); / this.lb_info.Text = 上传成功！ ; try mycmd.ExecuteNonQuery(); string sqlstr1 = ; sqlstr1 = insert into users(userid,username)values( + userid.Text + , + txtusername.Text + ) ; SqlCommand mycmd1 = new SqlCommand(sqlstr1, conn); mycmd1.Dispose(); try mycmd1.ExecuteNonQuery(); Respons

24、e.Write(javascript:alert( 添加成功 !);); catch (SqlException) Response.Write(javascript:alert( 添加失败 !);); finally sqlstr1 = ; catch (SqlException) Response.Write(javascript:alert( 添加失败 !);); finally conn.Close(); sqlstr = ; protected void Button2_Click(object sender, EventArgs e) userid.Text = ; txtuser

25、name.Text = ; txtminzu.Text = ; txtbirthday.Text = ; txtclass.Text = ; txtcomefrom.Text = ; txtbeizhu.Text = ; protected void Button3_Click(object sender, EventArgs e) Response.Redirect(student.aspx); 五、检查课程号唯一性程序代码 using System; using System.Data; using System.Configuration; using System.Collection

26、s; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; public partial class checkcourseid : System.Web.UI.Page protected void Page_Load(object sende

27、r, EventArgs e) Response.Expires = 0; string strconn = ConfigurationManager.AppSettingsconnStr; SqlConnectionconn = new SqlConnection(strconn); string nam = Request.QueryStringname.ToString(); string sql = select courseid from course where courseid= + nam + ; SqlCommand DBHelper; DBHelper = new SqlC

28、ommand(sql, conn); conn.Open(); SqlDataReader dr = DBHelper.ExecuteReader(); if (dr.Read() ); Response.Write( 该课程号已经存在，请换一个 else Response.Write( 该课程号可以使用 ); dr.Close(); 六、检查学号唯一性程序代码 using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System

29、.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; public partial class checkuser : System.Web.UI.Page protected void Page_Load(object sender, EventArgs e) Response.Expires = 0;

30、 string strconn = ConfigurationManager.AppSettingsconnStr; SqlConnection conn = new SqlConnection(strconn); string nam = Request.QueryStringname.ToString(); string sql = select userid from students where userid= + nam + SqlCommand DBHelper; DBHelper = new SqlCommand(sql, conn); conn.Open(); SqlDataR

31、eader dr = DBHelper.ExecuteReader(); if (dr.Read() Response.Write( 该学号已经存在，请换一个 ); else ); Response.Write(该学号可以使用 dr.Close(); 七、课程信息程序代码 using System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using Syst

32、em.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; public partial class course : System.Web.UI.Page SqlConnection conn; SqlDataReader getdata; protected void Page_Load(object sender, EventArgs e) string strconn = Configurat

33、ionManager.AppSettingsconnStr; conn = new SqlConnection(strconn); SqlDataReader getdata; SqlCommand mycmd; DataSet ds = new DataSet(); string sql = ; sql = select * from course order by courseid; mycmd = new SqlCommand(sql, conn); conn.Open(); getdata = mycmd.ExecuteReader(); grdMain.DataSource = ge

34、tdata; grdMain.DataBind(); mycmd.Connection.Close(); conn.Close(); mycmd.Dispose(); protected void Button1_Click(object sender, EventArgs e) DataSet ds; SqlDataReader da; string strsql = ; SqlCommand cmd; conn.Open(); strsql = select * from course where courseid= + courseid.Text + or coursename like

35、 + coursename.Text + ; cmd = new SqlCommand(strsql, conn); da = cmd.ExecuteReader(); Datagrid1.DataSource = da; Datagrid1.DataBind(); conn.Close(); cmd.Dispose(); cmd.Connection.Close(); 八、编辑、删除学生信息程序代码 using System; using System.Data; using System.Configuration; using System.Collections; using Syst

36、em.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; public partial class images_editstudent : System.Web.UI.Page SqlCommand cmd; SqlCommand cmd2; protected vo

37、id Page_Load(object sender, EventArgs e) if (!this.IsPostBack) string sql = ; SqlDataReader reader; string uid = ; uid = Page.Requestid; string strconn = ConfigurationManager.AppSettingsconnStr; SqlConnection conn = new SqlConnection(strconn); sql = select * from students where userid= + uid + ; Sql

38、Command cmd; cmd = new SqlCommand(sql, conn); conn.Open(); reader = cmd.ExecuteReader(); while (reader.Read() userid.Text = readeruserId.ToString(); txtusername.Text = readerusername.ToString(); txtsex.SelectedValue = readersex.ToString(); txtminzu.Text = readerminzu.ToString(); txtbirthday.Text = r

39、eaderbirthday.ToString(); txtclass.Text = readerclass.ToString(); txtcomefrom.Text = readercomefrom.ToString(); txtxuey.Text = readerxuey.ToString(); txtzhuany.Text = readerzhuany.ToString(); txttel.Text = readertel.ToString(); txtidc.Text = readeridc.ToString(); cmd.Dispose(); sql = ; conn.Close();

40、 protected void Button1_Click(object sender, EventArgs e) string uid=; uid=Page .Request id; string strconn = ConfigurationManager.AppSettingsconnStr; SqlConnection conn = new SqlConnection(strconn); string sql=; sql = update students set userid= + userid.Text + ,username= + txtusername.Text + ,minz

41、u= + txtminzu.Text + ,sex= + txtsex.SelectedItem.Value + ,birthday= + txtbirthday.Text + ,class= + txtclass.Text + ,comefrom= + txtcomefrom.Text + ,beizhu= + txtbeizhu.Text + ,xuey= + txtxuey.Text + ,zhuany= + txtzhuany.Text + ,tel= + txttel.Text + ,idc= + txtidc.Text + ,zhengzmm= + txtzzmm.Selected

42、Value + where userid= + uid + ; cmd=new SqlCommand (sql,conn ); conn.Open(); try cmd.ExecuteNonQuery(); Label11.Stylecolor = blue; Label11.Text = 编辑成功 ; Response.Write(javascript:alert( 编辑成功 !);); catch(SqlException ) Label11.Text = 编辑失败 ; Label11.Stylecolor = red; cmd.Dispose(); conn.Close(); prote

43、cted void Button2_Click(object sender, EventArgs e) string sql = ; string uid = ; string sqlall = ; uid = Page.Requestid; string strconn = ConfigurationManager.AppSettingsconnStr; SqlConnection conn = new SqlConnection(strconn); sql = delete from students where userid= + uid + ; sqlall = delete from

44、 images where userid= + uid + ; cmd = new SqlCommand(sql, conn); cmd2 = new SqlCommand(sqlall,conn); conn.Open(); try cmd.ExecuteNonQuery(); string sql1 = ; sql1 = delete from users where userid= + uid + ; SqlCommand cmd1 = new SqlCommand(sql1, conn); cmd1.Dispose(); try cmd1.ExecuteNonQuery(); Labe

45、l11.Stylecolor = blue; Label11.Text = 删除成功 ; !);); !);); Response.Write(javascript:alert( 删除成功 catch (SqlException) Label11.Text = 删除失败 ; Response.Write(javascript:alert( 删除失败 finally sql1 = ; catch(SqlException ) Label11.Text = 删除失败 Label11.Stylecolor = red; cmd.Dispose(); conn.Close(); userid.Text

46、 = ; txtusername.Text = ; txtminzu.Text = ; txtbirthday.Text = ; txtclass.Text = ; txtcomefrom.Text = ; txtbeizhu.Text = ; txtxuey.Text = ; txtzhuany.Text = ; txttel.Text = ; txtidc.Text = ; protected void Button3_Click(object sender, EventArgs e) Response.Redirect(student.aspx); 九、编辑、删除课程信息程序代码 usi

47、ng System; using System.Data; using System.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; public parti

48、al class editcourse : System.Web.UI.Page SqlCommand cmd; protected void Page_Load(object sender, EventArgs e) if (!this.IsPostBack) string sql = ; SqlDataReader reader; string uid = ; uid = Page.Requestid; string strconn = ConfigurationManager.AppSettingsconnStr; SqlConnection conn = new SqlConnecti

49、on(strconn); sql = select * from course where courseid= + uid + SqlCommand cmd; cmd = new SqlCommand(sql, conn); conn.Open(); reader = cmd.ExecuteReader(); while (reader.Read() courseid.Text = readercourseid.ToString(); coursename.Text = readercoursename.ToString(); coursetime.Text = readercoursetim

50、e.ToString(); fen.Text = readerfen.ToString(); type.Text = readertype.ToString(); type.Text = readerteacher.ToString(); cmd.Dispose(); sql = ; conn.Close(); protected void Button1_Click(object sender, EventArgs e) string uid = ; uid = Page.Requestid; string strconn = ConfigurationManager.AppSettings

51、connStr; SqlConnection conn = new SqlConnection(strconn); string sql = ; sql = update course set courseid= + courseid.Text + ,coursename= + coursename.Text + ,coursetime= + coursetime.Text + ,fen= + fen.Text + ,type= + type.Text + ,teacher= + teacher.Text + where courseid= + uid + ; cmd = new SqlCom

52、mand(sql, conn); conn.Open(); try cmd.ExecuteNonQuery(); Label7.Text = 编辑成功 ; Response.Write(javascript:alert( 编辑成功 !);); catch (SqlException) Label7.Text = 编辑失败 ; cmd.Dispose(); conn.Close(); protected void Button2_Click(object sender, EventArgs e) string sql = ; string uid = ; uid = Page.Requestid

53、; string strconn = ConfigurationManager.AppSettingsconnStr; SqlConnection conn = new SqlConnection(strconn); sql = delete from course where courseid= + uid + ; cmd = new SqlCommand(sql, conn); conn.Open(); try cmd.ExecuteNonQuery(); Label7.Text = 删除成功 ; !);); Response.Write(javascript:alert( 删除成功 ca

54、tch (SqlException) Label7.Text = 删除失败 ; cmd.Dispose(); conn.Close(); courseid.Text = ; coursename.Text = ; coursetime.Text = ; fen.Text = ; type.Text = ; protected void Button3_Click(object sender, EventArgs e) Response.Redirect(course.aspx); 十、编辑、删除成绩信息程序代码 using System; using System.Data; using Sy

55、stem.Configuration; using System.Collections; using System.Web; using System.Web.Security; using System.Web.UI; using System.Web.UI.WebControls; using System.Web.UI.WebControls.WebParts; using System.Web.UI.HtmlControls; using System.Data.SqlClient; public partial class editscore : System.Web.UI.Pag

56、e SqlCommand cmd; SqlConnection conn; protected void Page_Load(object sender, EventArgs e) if (!this.IsPostBack) string sql = ; SqlDataReader reader; string uid = ; uid = Page.Requestid; string strconn = ConfigurationManager.AppSettingsconnStr; conn = new SqlConnection(strconn); sql = select * from

57、score where id= + uid + SqlCommand cmd; cmd = new SqlCommand(sql, conn); conn.Open(); reader = cmd.ExecuteReader(); while (reader.Read() id.Text = readerid.ToString(); userid.Text = readeruserid.ToString(); username.Text = readerusername.ToString(); txtcourseid.Text = readercourseid.ToString(); cour

58、sename.Text = readercoursename.ToString(); score.Text = readerscore.ToString(); cmd.Dispose(); sql = ; conn.Close(); protected void Button1_Click(object sender, EventArgs e) string uid = ; uid = Page.Requestid; string sql = string strconn = ConfigurationManager.AppSettingsconnStr; conn = new SqlConn

59、ection(strconn); sql = update score set userid= + userid.SelectedValue + ,username= + username.Text + ,courseid= + txtcourseid.SelectedValue + ,coursename= + coursename.Text + ,score= + score.Text + ,year= + txtyear.SelectedValue + where id= + uid + ; cmd = new SqlCommand(sql,conn ); conn.Open(); tr

60、y cmd.ExecuteNonQuery(); Label11.Text = 编辑成功 ; Response.Write(javascript:alert( 编辑成功 catch (SqlException) Label11.Text = 编辑失败 ; cmd.Dispose(); conn.Close(); protected void Button2_Click(object sender, EventArgs e) string sql = ; string uid = ; uid = Page.Requestid; string strconn = ConfigurationMana