学生信息管理系统 系统源代码(35页).doc
-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 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.AppSettings"connStr" 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) Label3 .Text ="账号或密码错误，请重新输入！" else Session "userid"=txtid .Text ; Session"userpwd" = txtpassword.Text; Session"username" = ds.Tables0.Rows0"username".ToString(); Session"userpower" = ds.Tables0.Rows0"userpower".ToString(); if (Session"userpower".ToString () = "0") Response.Redirect("admin/index.aspx"); else if (Session"userpower".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;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 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.AppSettings"connStr" 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('" + 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("<script>javascript:alert('添加成功!');</script>"); catch (SqlException) Response.Write("<script>javascript:alert('添加失败!');</script>"); 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 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 addscore : System.Web.UI.Page SqlCommand mycmd; SqlConnection conn; protected void Page_Load(object sender, EventArgs e) string strconn = ConfigurationManager.AppSettings"connStr" 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 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.Dispose(); try mycmd.ExecuteNonQuery(); Response.Write("<script>javascript:alert('添加成功!');</script>"); catch (SqlException) Response.Write("<script>javascript:alert('添加失败!');</script>"); finally conn.Close(); sqlstr = "" protected void 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 = "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 = da"username".ToString(); protected void txtcourseid_SelectedIndexChanged(object sender, 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 = da"coursename".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;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; protected void Page_Load(object sender, EventArgs e) userid.Attributes.Add("onblur", "checkuserid()"); string strconn = ConfigurationManager.AppSettings"connStr" SqlConnection conn = new SqlConnection(strconn); protected void Button1_Click(object sender, EventArgs e) if (userid.Text.ToString() = "") return; string strconn = ConfigurationManager.AppSettings"connStr" 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 + "','" + 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(); 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.ToString("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.Parameters"path".Value = wpath; cm.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(); Response.Write("<script>javascript:alert('添加成功!');</script>"); catch (SqlException) Response.Write("<script>javascript:alert('添加失败!');</script>"); finally sqlstr1 = "" catch (SqlException) Response.Write("<script>javascript:alert('添加失败!');</script>"); finally conn.Close(); sqlstr = "" protected void Button2_Click(object sender, EventArgs e) userid.Text = "" txtusername.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.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 checkcourseid : System.Web.UI.Page protected void Page_Load(object sender, EventArgs e) Response.Expires = 0; string strconn = ConfigurationManager.AppSettings"connStr" SqlConnection conn = new SqlConnection(strconn); string nam = Request.QueryString"name".ToString(); string sql = "select courseid from course where courseid='" + nam + "'" SqlCommand DBHelper; DBHelper = new SqlCommand(sql, conn); conn.Open(); SqlDataReader dr = DBHelper.ExecuteReader(); if (dr.Read() Response.Write("<b class='Error'>该课程号已经存在，请换一个</b>"); else Response.Write("<b class='Right'>该课程号可以使用</b>"); 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 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.AppSettings"connStr" SqlConnection conn = new SqlConnection(strconn); string nam = Request.QueryString"name".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.Read() Response.Write("<b class='Error'>该学号已经存在，请换一个</b>"); else Response.Write("<b class='Right'>该学号可以使用</b>"); 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.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.AppSettings"connStr" 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 = getdata; 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 '" + 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 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
