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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.SqlClient;public
2、 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(strconn); con
3、n.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 ; Sessionuserpwd = txtpassw
4、ord.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 Label3.Text = 对不起
5、，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;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;us
6、ing 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; conn = new SqlConnection
7、(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( + courseid.Text + , + coursename.Text + , + coursetime.Text + , + fen
8、.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(javascript:alert(添加失败!);); finally conn.Close(); sqlstr = ; protected void Butt
9、on2_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 System;using System.Data;using System.Configuration;using System.Collect
10、ions;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; SqlConnection conn; protected
11、 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 string sqlstr = ; sqlstr = insert int
12、o 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.Dispose(); try mycmd.ExecuteNonQu
13、ery(); 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.Text = ; protected void Button3_Click
14、(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(sqlstr, conn); mycmd.Dispose(); Sql
15、DataReader 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.SelectedValue + ; conn.Open(); mycmd =
16、 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;using System.Collections;using System.Web;us
17、ing 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; protected void Page_Load(object sender, EventArgs e
18、) 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; string strconn = ConfigurationManager.AppSettingsc
19、onnStr; 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,zhengzmm,zhiw,huoj,weij)values( + userid.Text + , + txtusername.Text + , + txtsex.SelectedItem.Value +
20、, + txtminzu.Text + , + txtbirthday.Text + , + txtclass.Text + , + txtcomefrom.Text + , + txtbeizhu.Text + , + txtxuey.SelectedValue + , + txtzhuany.SelectedValue + , + txttel.Text + , + txtidc.Text + , + txtzzmm.SelectedValue + , + txtzhiw.Text + , + txthuoj.Text + , + txtweij.Text + ); conn.Open()
21、; mycmd = new SqlCommand(sqlstr, conn); mycmd.Dispose(); string name = this.FileUpload1.FileName;/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 = images + DateTime.Now.ToSt
22、ring(yyyyMMddhhmmss) + name; 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.Parameters.Add(path, SqlDbType.VarChar, 50); cm.Parameterspath.Value = wpath; cm.ExecuteNo
23、nQuery(); / 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(java
24、script: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 = ; txtusername.Text = ; txtm
25、inzu.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.Collections;using System.Web;usi
26、ng 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 sender, EventArgs e) Response.Expir
27、es = 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 DBHelper; DBHelper = new SqlCommand(sql, conn); conn.Open(
28、); 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.Web.Security;using System.Web.UI;using
29、 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; string strconn = ConfigurationManager.AppSet
30、tingsconnStr; 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(); SqlDataReader dr = DBHelper.ExecuteReader(); if (dr
31、.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 System.Web.UI.WebControls;using System.Web.UI.WebControls.
32、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 = ConfigurationManager.AppSettingsconnStr; conn = new SqlConnection(st
33、rconn); 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 = getdata; grdMain.DataBind(); mycmd.Connection.Close(); conn.
34、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 + coursename.Text + ; cmd = new SqlCommand(strsql, conn);
35、 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 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 images_editstudent : System.Web.UI.Page