学生信息管理系统系统源代码.docx

1、学生信息管理系统系统源代码系统源代码一、登录界面代码using System;using System.Data;using System.Configuration;using System.Collections;using System.Web; protected void txtid_Click(object sender, EventArgs e) txtid.Text = ; txtpassword.Text = ; protected void Button1_Click(object sender, EventArgs e) string strconn = Configur

2、ationManager.AppSettingsconnStr; SqlConnection conn = new SqlConnection(strconn); 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) Labe

3、l3 .Text =账号或密码错误，请重新输入！; else Session userid=txtid .Text ; Sessionuserpwd = txtpassword.Text; Sessionusername = ds.Tables0.Rows0username.ToString(); Sessionuserpower = ds.Tables0.Rows0userpower.ToString(); if (Sessionuserpower.ToString () = 0) Response.Redirect(admin/index.aspx); else if (Sessionus

4、erpower.ToString() = 1) Response.Redirect(student/index.aspx); else Label3.Text = 对不起，权限验证失败; conn.Close(); ds.Clear (); 二、添加课程页面代码using System;using System.Data;using System.Configuration;using System.Collections;using System.Web; SqlCommand mycmd; SqlConnection conn; protected void Page_Load(objec

5、t sender, EventArgs e) string strconn = ConfigurationManager.AppSettingsconnStr; conn = new SqlConnection(strconn); protected void Button1_Click(object sender, EventArgs e) Label7.Text = 课程号不能为空; else string sqlstr = ; sqlstr = insert into course(courseid,coursename,coursetime,fen,type,teacher)value

6、s( + courseid.Text + , + coursename.Text + , + coursetime.Text + , + fen.Text + , + type.Text + , + teacher.Text + ); conn.Open(); mycmd = new SqlCommand(sqlstr, conn); mycmd.Dispose(); try mycmd.ExecuteNonQuery(); Response.Write(javascript:alert(添加成功!);); catch (SqlException) Response.Write(javascr

7、ipt:alert(添加失败!);); finally conn.Close(); sqlstr = ; protected void Button2_Click(object sender, EventArgs e) courseid.Text = ; 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

8、System;using System.Data;using System.Configuration;using System.Collections;using System.Web; SqlCommand mycmd; SqlConnection conn; protected void Page_Load(object sender, EventArgs e) string strconn = ConfigurationManager.AppSettingsconnStr; conn = new SqlConnection(strconn); protected void Button

9、1_Click(object sender, EventArgs e) if (userid.SelectedValue .ToString ()= ) Label11.Text = 学号不能为空; else string sqlstr = ; sqlstr = insert into score(userid,username,courseid,coursename,score,year)values( + userid.SelectedValue + , + username.Text + , + txtcourseid.SelectedValue + , + coursename.Tex

10、t + , + score.Text + , + txtyear.SelectedValue + ); conn.Open(); mycmd = new SqlCommand(sqlstr, conn); mycmd.Dispose(); 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 voi

11、d Button2_Click(object sender, EventArgs e) username.Text = ; coursename.Text = ; score.Text = ; txtyear.Text = ; protected void Button3_Click(object sender, EventArgs e) Response.Redirect(score.aspx); protected void userid_SelectedIndexChanged(object sender, EventArgs e) string sqlstr = ; sqlstr =

12、select username from students where userid= + userid.SelectedValue + ; conn.Open(); mycmd = new SqlCommand(sqlstr, conn); mycmd.Dispose(); SqlDataReader da; da = mycmd.ExecuteReader(); while (da.Read() username.Text = dausername.ToString(); protected void txtcourseid_SelectedIndexChanged(object send

13、er, EventArgs e) string sqlstr = ; sqlstr = select coursename from course where courseid= + txtcourseid.SelectedValue + ; conn.Open(); mycmd = new SqlCommand(sqlstr, conn); mycmd.Dispose(); SqlDataReader da; da = mycmd.ExecuteReader(); while (da.Read() coursename.Text = dacoursename.ToString(); 四、添加

14、学生程序代码using System;using System.IO;using System.Text;using System.Data;using System.Configuration;using System.Collections;using System.Web; SqlCommand mycmd; protected void Page_Load(object sender, EventArgs e) string strconn = ConfigurationManager.AppSettingsconnStr; SqlConnection conn = new SqlCo

15、nnection(strconn); protected void Button1_Click(object sender, EventArgs e) return; string strconn = ConfigurationManager.AppSettingsconnStr; SqlConnection conn = new SqlConnection(strconn); string sqlstr = ; string sql = ; conn.Open(); mycmd = new SqlCommand(sqlstr, conn); mycmd.Dispose();获取上传文件的名称

16、 string type = name.Substring(name.LastIndexOf() + 1);/获取上传文件的后缀 string query1 = insert into images(userid,path) values( + userid.Text + ,path); FileUpload1.SaveAs(ipath); /服务器保存路径 SqlCommand cm = new SqlCommand(query1); cm.Connection = conn; cm.Parameterspath.Value = wpath; cm.ExecuteNonQuery(); /

17、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(); Response.Write(javascript:alert

18、(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 = ; txtusername.Text = ; txtminzu.Text =

19、; 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.Collections;using System.Web; protected void

20、 Page_Load(object sender, EventArgs e) Response.Expires = 0; string strconn = ConfigurationManager.AppSettingsconnStr; SqlConnection conn = new SqlConnection(strconn); string nam = Request.QueryStringname.ToString(); string sql = select courseid from course where courseid= + nam + ; SqlCommand DBHel

21、per; DBHelper = new SqlCommand(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.We

22、b; protected void Page_Load(object sender, EventArgs e) Response.Expires = 0; string strconn = ConfigurationManager.AppSettingsconnStr; SqlConnection conn = new SqlConnection(strconn); string nam = Request.QueryStringname.ToString(); string sql = select userid from students where userid= + nam + ; S

23、qlCommand DBHelper; DBHelper = new SqlCommand(sql, conn); conn.Open(); SqlDataReader 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

24、 System.Web; SqlConnection conn; SqlDataReader getdata; protected void Page_Load(object sender, EventArgs e) string strconn = ConfigurationManager.AppSettingsconnStr; conn = new SqlConnection(strconn); SqlDataReader getdata; SqlCommand mycmd; DataSet ds = new DataSet(); string sql = ; sql = select *

25、 from course order by courseid; mycmd = new SqlCommand(sql, conn); conn.Open(); getdata = mycmd.ExecuteReader(); grdMain.DataSource = getdata; grdMain.DataBind(); conn.Close(); mycmd.Dispose(); protected void Button1_Click(object sender, EventArgs e) DataSet ds; SqlDataReader da; string strsql = ; S

26、qlCommand cmd; conn.Open(); strsql = select * from course where courseid= + courseid.Text + or coursename like + coursename.Text + ; cmd = new SqlCommand(strsql, conn); da = cmd.ExecuteReader(); Datagrid1.DataSource = da; Datagrid1.DataBind(); conn.Close(); cmd.Dispose(); 八、编辑、删除学生信息程序代码using System

27、;using System.Data;using System.Configuration;using System.Collections;using System.Web; SqlCommand cmd; SqlCommand cmd2; protected void Page_Load(object sender, EventArgs e) if (!this.IsPostBack) string sql = ; SqlDataReader reader; string uid = ; uid = Page.Requestid; string strconn = Configuratio

28、nManager.AppSettingsconnStr; SqlConnection conn = new SqlConnection(strconn); sql = select * from students where userid= + uid + ; SqlCommand cmd; cmd = new SqlCommand(sql, conn); conn.Open(); reader = cmd.ExecuteReader(); while (reader.Read() userid.Text = readeruserId.ToString(); txtusername.Text = readerus