protected void BindKechengInfo()
{
string kechengid = Session["kechengid"].ToString();
TextBoxkcname.Text = KechengInfo.getKechengname(kechengid);
SqlConnection conn = new SqlConnection();
conn.ConnectionString = ConfigurationManager.ConnectionStrings["kecheng2012ConnectionString"].ConnectionString;
SqlCommand comm = conn.CreateCommand();
comm.CommandText = "select instruction,image,guanliyuan from tb_kecheng where kechengid=" + kechengid;
conn.Open();
SqlDataReader sdr = comm.ExecuteReader();
if (sdr.Read())
{
if (!sdr.IsDBNull(0))
{
TextBox1.Text = sdr.GetString(0);
}
if (!sdr.IsDBNull(1))
{
Image1.ImageUrl = sdr.GetString(1);
}
DropDownList2.SelectedValue = sdr.GetString(2);
}
sdr.Close();
conn.Close();
}
protected void BindKecheng()
{
DataSet ds = KechengInfo.GetKecheng();
ddl_kecheng.DataSource = ds.Tables[0].DefaultView;
ddl_kecheng.DataTextField = "kechengname";
ddl_kecheng.DataValueField = "kechengid";
ddl_kecheng.DataBind();
}
protected void Page_Load(object sender, EventArgs e)
{
string kechengid = Session["kechengid"].ToString();
string banjiid = Request.QueryString["banjiid"];
string stuun = Request.QueryString["studentusername"];
Labelkc.Text = KechengInfo.getKechengname(kechengid);
Labelbj.Text = BanjiInfo.GetBanjiName(int.Parse(banjiid));
Labelxm.Text = StudentInfo.GetStuXingming(stuun);
Labelun.Text = stuun;
BindDianMingStu();
}
protected void Page_Init(object sender, EventArgs e)
{
string username = ((FormsIdentity)HttpContext.Current.User.Identity).Ticket.Name;
if (Session["kechengid"] == null)
{
int minkechengid = TeacherInfo.GetTeacherRenke_min_kechengid(username);
if (minkechengid > 0)
{
Session["kechengid"] = minkechengid;
}
else if (KechengInfo.GetKechengCount() > 0)
{
Session["kechengid"] = KechengInfo.MinKechengid();
}
else
{
List <string> noneKechengPage = new List <string>();//不需要课程的页面
noneKechengPage.Add("createcourse.aspx");
noneKechengPage.Add("help.aspx");
noneKechengPage.Add("addbanji.aspx");
noneKechengPage.Add("default.aspx");
noneKechengPage.Add("studentdaoru.aspx");
noneKechengPage.Add("wanshanxinxi.aspx");
noneKechengPage.Add("addstudent.aspx");
noneKechengPage.Add("editstudent.aspx");
noneKechengPage.Add("editstudentinfo.aspx");
noneKechengPage.Add("gerenxinxi.aspx");
noneKechengPage.Add("kcxianyou.aspx");
string url = HttpContext.Current.Request.Url.AbsolutePath;
string pageurl = url.Substring(url.LastIndexOf("/") + 1).ToLower();
if (!noneKechengPage.Contains(pageurl))
{
Response.Redirect("createcourse.aspx");
}
}
}
if (!IsPostBack)
{
Literal2.Text = TeacherInfo.TeacherXingMing(username) + "老师.";
if (Session["kechengid"] != null)
{
lbl_kecheng.Text = KechengInfo.getKechengname(DropDownList1.SelectedValue = Session["kechengid"].ToString());
}
else
{
lbl_kecheng.Text = "未知";
}
lbtn_qiehuan.Visible = TeacherInfo.IsManager(username);//是否显示身份切换链接
}
}
protected void Page_Load(object sender, EventArgs e)
{
BindKechengTreeView();
string kechengid = Session["kechengid"].ToString();
string username = ((FormsIdentity)HttpContext.Current.User.Identity).Ticket.Name;
if (!KechengInfo.IsTeacherManageKecheng(username, kechengid))
{
BtnAddzhishidian.Enabled = false;
Lbl_fankui.Text = "您不是本课程的管理员，无权对其知识结构进行编辑修改。";
}
else
{
BtnAddzhishidian.Enabled = true;
}
}
protected void Page_Load(object sender, EventArgs e)
{
string kechengid = Session["kechengid"].ToString();
string tusername = ((FormsIdentity)HttpContext.Current.User.Identity).Ticket.Name;
if (!KechengInfo.IsTeacherManageKecheng(tusername, kechengid))
{
Button1.Enabled = false;
Label1.Text = "您不是本课程的管理员，无权更新课程信息。";
}
else
{
Button1.Enabled = true;
}
if (!IsPostBack)
{
BindKechengInfo();
}
}
protected void Page_Init(object sender, EventArgs e)
{
if (Session["kechengid"] == null)
{
if (KechengInfo.GetKechengCount() > 0)
{
Session["kechengid"] = KechengInfo.MinKechengid().ToString();
}
else
{
Response.Redirect("default.aspx");
}
}
if (!IsPostBack)
{
string stuusername = ((FormsIdentity)HttpContext.Current.User.Identity).Ticket.Name;
Literalxingming.Text = StudentInfo.GetStuXingming(stuusername);
}
lbl_kecheng.Text = KechengInfo.getKechengname(Session["kechengid"].ToString());
CheckCeshi();//判断学生有无未完成的测试，如果有，不允许进行其他学习活动，只能进行测试
}
protected void Page_Load(object sender, EventArgs e)
{
string kechengid = Session["kechengid"].ToString();
if (!IsPostBack)
{
UpdateKechengTreeview(kechengid);
}
string username = ((FormsIdentity)HttpContext.Current.User.Identity).Ticket.Name;
if (!KechengInfo.IsTeacherManageKecheng(username, kechengid))
{
Button_shanchu.Enabled = false;
Label1.Text = "您不是本课程的管理员，无权对其知识结构进行编辑修改。";
DetailsView1.Enabled = false;
}
else
{
Button_shanchu.Enabled = true;
DetailsView1.Enabled = true;
}
}
protected void Page_Init(object sender, EventArgs e)
{
if (Request.QueryString["kechengid"] != null)
{
Session["kechengid"] = Request.QueryString["kechengid"].Trim();
}
else
{
if (Session["kechengid"] == null)
{
if (KechengInfo.GetKechengCount() > 0)
{
Session["kechengid"] = KechengInfo.MinKechengid().ToString();
}
else
{
Response.Redirect("../default.aspx");
}
}
}
literal_kecheng.Text = KechengInfo.getKechengname(Session["kechengid"].ToString());;
}
protected void Page_Init(object sender, EventArgs e)
{
if (Session["kechengid"] == null)
{
if (KechengInfo.GetKechengCount() > 0)
{
Session["kechengid"] = KechengInfo.MinKechengid().ToString();
}
else
{
Response.Redirect("../default.aspx");
}
}
label_kecheng.Text = KechengInfo.getKechengname(Session["kechengid"].ToString());
string username = string.Empty;
string usershenfen = string.Empty;
try
{
username = ((FormsIdentity)HttpContext.Current.User.Identity).Ticket.Name;
usershenfen = ((FormsIdentity)HttpContext.Current.User.Identity).Ticket.UserData;
}
catch
{
}
if (username != string.Empty && usershenfen != string.Empty)
{
Literal2.Text = username;
user_login.Visible = false;
user_logout.Visible = true;
}
else
{
Literal2.Text = "游客.";
user_login.Visible = true;
user_logout.Visible = false;
}
}
//显示初始课程结构
protected void TreeView1_SelectedNodeChanged(object sender, EventArgs e)
{
string username = ((FormsIdentity)HttpContext.Current.User.Identity).Ticket.Name;
string kechengid = Session["kechengid"].ToString();
Lbl_zhishiname.Text = TreeView1.SelectedNode.Text;
Lbl_zhishiid.Text = TreeView1.SelectedNode.Value;
TreeNode node = TreeView1.SelectedNode;
if (node.ChildNodes.Count > 0 || node.Depth <= 0)
{
Button_shanchu.Enabled = false;
}
else
{
if (KechengInfo.IsTeacherManageKecheng(username, kechengid))
{
Button_shanchu.Enabled = true;
}
else
{
Button_shanchu.Enabled = false;
}
}
int nodedepth = node.Depth;//求结点深度
//回溯该知识点的上位知识点
Lbl_dangqianweizhi.Text = "";
StringBuilder sb = new StringBuilder();
sb.Append(TreeView1.SelectedNode.Text);
while (node.Parent != null)
{
node = node.Parent;
sb.Insert(0, node.Text + ">");
}
Lbl_dangqianweizhi.Text = sb.ToString();
}
protected void FinishButton_Click(object sender, EventArgs e)//开始选题,手工组卷和半自动组卷
{
//收集用户选择的信息
string kechengid = Session["kechengid"].ToString();
string kechengname = KechengInfo.getKechengname(kechengid);
string username = ((FormsIdentity)HttpContext.Current.User.Identity).Ticket.Name;
string ceshiname = TextBoxceshimingcheng.Text.Trim(); //测试名称
string xianzhiip = (chbxianzhiip.Checked ? "是" : "否"); //是否限制IP
if (CheckCeshiName(int.Parse(kechengid), ceshiname, ((FormsIdentity)HttpContext.Current.User.Identity).Ticket.Name)) //如果该课程该试卷名称已存在，提示，返回
{
ScriptManager.RegisterClientScriptBlock(this, typeof(string), "", "<script language='javascript'>alert('您的该课程的该试卷名称已使用，请选择其它名称。');</script>", false);
return;
}
string ceshibanji = DropDownList_banji.SelectedItem.Text; //班级名称
string banjiid = DropDownList_banji.SelectedValue; //班级ID
string zujuanfangshi = RadioButtonListzujuanfangshi.SelectedValue.Trim(); //组卷方式，三种
string xuantifangshi = RadioButtonListxuantifangshi.SelectedValue.Trim(); //选题方式，两种+1zhong
int ceshishichang = int.Parse(DropDownList4.SelectedValue); //测试时长，分钟
string shifouyunxu = RadioButtonList9.SelectedValue; //是否允许做题
//获取测试题型
List <string> tixingsList = new List <string>(); //要选择哪些题型
string[] nodeidsshuzu = HiddenFieldnodeandchildren.Value.Split(',');
string[] tixingshuzu = HiddenFieldtixings.Value.Split(',');
foreach (string tixing in tixingshuzu)
{
if (tixing.Length > 0)
{
tixingsList.Add(tixing);
}
}
//检查选择的题目数是否符合要求
List <int>[] xuanzetihaoList = new List <int> [tixingsList.Count];//使用List记录每种题型选择的题号,questionid
for (int i = 0; i < tixingshuzu.Length - 1; i++)
{
xuanzetihaoList[i] = new List <int>();
}
int manfen = 100; //计划的满分分值
int[,] timushufenzhi = new int[tixingsList.Count, 4]; //题库中现有的题目数，要选择的题目数，分值，实际选择的题目数
//统计每种题型计划选择的题目数和预计分值
for (int i = 0; i < tixingsList.Count; i++)
{
timushufenzhi[i, 0] = ((DropDownList)(PlaceHolder1.FindControl("tixing" + tixingsList[i]))).Items.Count - 1;
timushufenzhi[i, 1] = int.Parse(((DropDownList)(PlaceHolder1.FindControl("tixing" + tixingsList[i]))).SelectedValue);
timushufenzhi[i, 2] = int.Parse(((DropDownList)(PlaceHolder1.FindControl("timufenzhi" + tixingsList[i]))).SelectedValue);
}
#region 获取选择的题号、题目数量
//获取选择的题号、题目数量
string xuanzetihaoliebiao = Labelhidden.Value; //选择的题号questionid,中间用两个逗号分割
string[] xuanzetihao; //选择的题号数组,总的，所有的
xuanzetihao = xuanzetihaoliebiao.Split(','); //选择的题号数组，字符串，因为题号间用,,分割，所以该数组中有很多空字符串
int tixingIndex;
string timutixing;
SqlConnection conn = new SqlConnection();
conn.ConnectionString = ConfigurationManager.ConnectionStrings["kecheng2012ConnectionString"].ConnectionString;
SqlCommand comm = conn.CreateCommand();
conn.Open();
for (int i = 0; i < xuanzetihao.Length; i++)//统计选择了多少道题
{
if (xuanzetihao[i].Length > 0)
{
//得到该题的题型
comm.CommandText = "select type from tb_tiku where questionid=" + xuanzetihao[i];
timutixing = comm.ExecuteScalar().ToString();
tixingIndex = tixingsList.IndexOf(timutixing);
//统计每种题型选择了多少道题
timushufenzhi[tixingIndex, 3]++;
//将选中的题目的questionid添加到对应列表中
xuanzetihaoList[tixingIndex].Add(int.Parse(xuanzetihao[i]));//每种题型选择的questionid
}
}
conn.Close();
#endregion
#region 判断是否按计划选够了题目
//判断是否按计划选够了题目
string xuantixinxi = "";
bool xuangoutimu = true; //已选够了题目
if (xuantifangshi == "0") //按所选题目组卷，选题数量应等于计划数量
{
for (int i = 0; i < tixingsList.Count; i++)
{
if (timushufenzhi[i, 3] != timushufenzhi[i, 1])
{
xuantixinxi += tixingsList[i] + "计划选择" + timushufenzhi[i, 1].ToString() + "道，实际选择" + timushufenzhi[i, 3].ToString() + "道。";
if (timushufenzhi[i, 3] > timushufenzhi[i, 1])
{
xuantixinxi += "多选了" + (timushufenzhi[i, 3] - timushufenzhi[i, 1]).ToString() + "道，请去掉" + (timushufenzhi[i, 3] - timushufenzhi[i, 1]).ToString() + "道。";
}
else
{
xuantixinxi += "少选了" + (timushufenzhi[i, 1] - timushufenzhi[i, 3]).ToString() + "道，请再选择" + (timushufenzhi[i, 1] - timushufenzhi[i, 3]).ToString() + "道。";
}
xuangoutimu = false;
}
}
}
else//随机组卷，选题数量应大于等于计划数量
{
for (int i = 0; i < tixingsList.Count; i++)
{
if (timushufenzhi[i, 3] < timushufenzhi[i, 1])
{
xuantixinxi += tixingsList[i] + "计划选择" + timushufenzhi[i, 1].ToString() + "道，实际选择" + timushufenzhi[i, 3].ToString() + "道。数量不足，请至少再选择" + (timushufenzhi[i, 1] - timushufenzhi[i, 3]).ToString() + "道。";
xuangoutimu = false;
}
}
}
if (!xuangoutimu)
{
ScriptManager.RegisterClientScriptBlock(this, typeof(string), "", "<script language='javascript'>alert('" + xuantixinxi + "');</script>", false);
return;
}
#endregion
#region 随机选题
int xuanzedetihao;
comm.CommandText = "select count(studentusername) from tb_banjistudent where banjiid=" + banjiid;
conn.Open();
int studentRenshu = (int)(comm.ExecuteScalar()); //查询学生数量
conn.Close();
List <int>[,] stusuijiXuantiList = new List <int> [studentRenshu, tixingsList.Count]; //记录为学生随机选择的题目,记录题型i随机选择的题目在题目ID列表中的下标
List <int>[] teasuijiXuantiList = new List <int> [tixingsList.Count]; //记录为教师随机选择的题目编号
Random rand = new Random();
int yixuantimushu = 0;
if (xuantifangshi == "1") //随机选题//为每个学生随机选择的题目
{
if (zujuanfangshi == "全体学生不同") //为每个学生随机选择的题目
{
for (int i = 0; i < studentRenshu; i++)
{
for (int j = 0; j < tixingsList.Count; j++)
{
stusuijiXuantiList[i, j] = new List <int>();
yixuantimushu = 0;
while (yixuantimushu < timushufenzhi[j, 1])
{
xuanzedetihao = rand.Next(timushufenzhi[j, 3]);
if (!stusuijiXuantiList[i, j].Contains(xuanzedetihao))
{
stusuijiXuantiList[i, j].Add(xuanzedetihao);
yixuantimushu++;
}
}
}
}
}
else//只组一套卷或全体学生相同
{
for (int i = 0; i < teasuijiXuantiList.Length; i++)
{
teasuijiXuantiList[i] = new List <int>();//记录题型i随机选择的题目在题目ID列表中的下标
}
for (int i = 0; i < tixingshuzu.Length - 1; i++)
{
yixuantimushu = 0;
while (yixuantimushu < timushufenzhi[i, 1])
{
xuanzedetihao = rand.Next(timushufenzhi[i, 3]);
if (!teasuijiXuantiList[i].Contains(xuanzedetihao))
{
teasuijiXuantiList[i].Add(xuanzedetihao);
yixuantimushu++;
}
}
}
}
}
#endregion
//生成试卷，写入数据库
int shijuanid;//试卷ID号
int tihao;
//查看该试卷题目是否可用
//开始事务
string zujuanxinxi = "";
bool chenggong = false;
List <string> stuusernameList = new List <string>();
List <int> stuxuhaoList = new List <int>();
List <string> stuxingmingList = new List <string>();
StringBuilder zujuanxinxiSB = new StringBuilder();
conn.Open();
comm.CommandText = "select tb_banjistudent.xuhao,tb_banjistudent.studentusername,tb_student.xingming from tb_banjistudent,tb_student where tb_banjistudent.banjiid=" + banjiid + " and tb_banjistudent.studentusername=tb_student.username";
SqlDataReader sdr = comm.ExecuteReader();
while (sdr.Read())
{
stuxuhaoList.Add(sdr.GetInt32(0));
stuusernameList.Add(sdr.GetString(1));
stuxingmingList.Add(sdr.GetString(2));
}
sdr.Close();
//conn.Close();
//将试卷、试题写入数据库
//conn.Open();
SqlTransaction st = conn.BeginTransaction();
comm.Transaction = st;
try
{
//第一步，写入教师试卷表,得到试卷id
comm.CommandText = "insert into tb_teachershijuan(teacherusername,ceshiname,kechengid,ceshizhishidian,timelength,manfen,mingtifangshi,yunxuzuoti,ceshibanji,banjiid,yunxuchakan,xianzhiip) values('" + username + "','" + ceshiname + "'," + kechengid + ",'" + HiddenFieldzhishidianname.Value + "'," + ceshishichang + "," + manfen + ",'" + zujuanfangshi + "','" + shifouyunxu + "','" + ceshibanji + "'," + banjiid + ",'" + RadioButtonList10.SelectedValue + "','" + xianzhiip + "') select @@identity as shijuanid";
shijuanid = Convert.ToInt32(comm.ExecuteScalar()); //
//第二步，写入教师题目表
if (zujuanfangshi == "全体学生相同" || zujuanfangshi == "对学生保密") //根据组卷方式选题，全体学生相同和只组一套卷类似，都是只选一套题
{
if (xuantifangshi == "0") //严格按照所选题目组卷
{
tihao = 1;
for (int i = 0; i < tixingsList.Count; i++)
{
for (int j = 0; j < xuanzetihaoList[i].Count; j++)
{
comm.CommandText = "insert into tb_teachershijuantimu(shijuanid,questionid,fenzhi,tihao) values(" + shijuanid + "," + xuanzetihaoList[i][j] + "," + timushufenzhi[i, 2] + "," + tihao + ")";
comm.ExecuteNonQuery();
tihao++;
}
}
}
else//随机选题方式
{
tihao = 1;
for (int i = 0; i < tixingsList.Count; i++)
{
for (int j = 0; j < timushufenzhi[i, 1]; j++)
{
//关于题目的questionid,选择的题目ID在xuzetihaoList[]中，每个数组元素是一个ArrayList,
//每个ArrayList记录了一种题型选择的questionid
//随机选题时，在teasuijiXuantiList中记录了选中的题目在对应ArrayList中的位置
//因此，要获取选中的题目的questionid,使用：(int)(xuzetihaoList[i][(int)(teasuijiXuantiList[i][j])])
comm.CommandText = "insert into tb_teachershijuantimu(shijuanid,questionid,fenzhi,tihao) values(" + shijuanid + "," + xuanzetihaoList[i][teasuijiXuantiList[i][j]] + "," + timushufenzhi[i, 2] + "," + tihao + ")";
comm.ExecuteNonQuery();
tihao++;
}
}
}
}
//第三步：写入学生试卷表
if (zujuanfangshi == "全体学生相同" || zujuanfangshi == "全体学生不同")//有学生的试卷
{
for (int i = 0; i < stuusernameList.Count; i++)
{
zujuanxinxiSB.Append("序号：" + stuxuhaoList[i] + ",姓名：" + stuxingmingList[i] + ",学号：" + stuusernameList[i] + ";<br/>");
comm.CommandText = "insert into tb_studentkaoshi(shijuanid,studentusername,zongfen,yunxu,kechengid,banjiid) values(" + shijuanid + ",'" + stuusernameList[i] + "',0,'" + shifouyunxu + "'," + kechengid + "," + banjiid + ")";
comm.ExecuteNonQuery();
}
}
else
{
zujuanxinxiSB.Append("组卷方式为只组一套卷，对学生保密，用于生成纸质试卷，因此没有为学生生成试卷。");
}
//第四步：试题写入学生试题表
if (zujuanfangshi == "全体学生相同")
{
if (xuantifangshi == "0")//严格组卷
{
foreach (string suname in stuusernameList)
{
tihao = 1;
for (int i = 0; i < tixingsList.Count; i++)
{
for (int j = 0; j < timushufenzhi[i, 1]; j++)
{
comm.CommandText = "insert into tb_studentkaoshiti(studentusername,shijuanid,questionid,fenzhi,timuhao) values('" + suname + "'," + shijuanid + "," + xuanzetihaoList[i][j] + "," + timushufenzhi[i, 2] + "," + tihao + ")";
comm.ExecuteNonQuery();
tihao++;
}
}
}
}
else//随机选题方式
{
foreach (string suname in stuusernameList)
{
tihao = 1;
for (int i = 0; i < tixingsList.Count; i++)
{
for (int j = 0; j < timushufenzhi[i, 1]; j++)
{
comm.CommandText = "insert into tb_studentkaoshiti(studentusername,shijuanid,questionid,fenzhi,timuhao) values('" + suname + "'," + shijuanid + "," + xuanzetihaoList[i][teasuijiXuantiList[i][j]] + "," + timushufenzhi[i, 2] + "," + tihao + ")";
comm.ExecuteNonQuery();
tihao++;
}
}
}
}
}
else if (zujuanfangshi == "全体学生不同")
{
if (xuantifangshi == "1")//随机选题
{
for (int i = 0; i < stuusernameList.Count; i++)
{
tihao = 1;
for (int j = 0; j < tixingsList.Count; j++)
{
for (int k = 0; k < timushufenzhi[j, 1]; k++)
{
comm.CommandText = "insert into tb_studentkaoshiti(studentusername,shijuanid,questionid,fenzhi,timuhao) values('" + stuusernameList[i] + "'," + shijuanid + "," + xuanzetihaoList[j][stusuijiXuantiList[i, j][k]] + "," + timushufenzhi[j, 2] + "," + tihao + ")";
comm.ExecuteNonQuery();
tihao++;
}
}
}
}
}
st.Commit();
chenggong = true;
}
catch (Exception ex)
{
st.Rollback();
zujuanxinxi = ex.Message;
chenggong = false;
}
finally
{
if (conn.State == ConnectionState.Open)
{
conn.Close();
}
}
if (chenggong)//组卷成功，显示汇总信息，跳转到完成/跳转到Completestep,显示组卷信息
{
Labelkecheng.Text = kechengname;
Labelbanji.Text = DropDownList_banji.SelectedItem.Text;
Labelshichang.Text = ceshishichang.ToString();
Labelceshimingcheng.Text = ceshiname;
Labeltixing.Text = HiddenFieldtixings.Value;
Labelyunxu.Text = shifouyunxu;
Labelzujuanfangshi.Text = zujuanfangshi;
Literalstudentxiangxi.Text = zujuanxinxiSB.ToString();
Labelzhishidian.Text = TreeView1.CheckedNodesText;
Labelyunxuchakan.Text = RadioButtonList10.SelectedValue;
Labelxianzhiip.Text = (chbxianzhiip.Checked ? "限制IP,学生考试时IP地址必须唯一" : "不限制IP");
Wizard1.ActiveStepIndex = 3;
}
else
{
ScriptManager.RegisterClientScriptBlock(this, typeof(string), "", "<script language='javascript'>alert('" + zujuanxinxi + "');</script>", false);
}
}
protected void StartNextButton_Click(object sender, EventArgs e)//验证是否有班级、题目，如果有，则跳转到下一步
{
//查询相关知识点、课程有无任课班级、题目
bool banjicunzai = false;
bool timucunzai = false;
string kechengid = Session["kechengid"].ToString();
string username = ((FormsIdentity)HttpContext.Current.User.Identity).Ticket.Name;
string kechengname = KechengInfo.getKechengname(kechengid);
//查询是否有班级
DataSet ds = BanjiInfo.GetTeacherRenkeBanji(username, int.Parse(kechengid));
if (ds.Tables[0].Rows.Count > 0)
{
banjicunzai = true;
}
if (!banjicunzai)
{
ScriptManager.RegisterClientScriptBlock(this, typeof(String), "", "<script language='javascript'>alert('没有找到您任教课程" + kechengname + "的班级，请选择其他班级!');</script>", false);
return;
}
//查询是否有题目
//显示每种题型的数量，选择数量，分值
//获取选择的知识点及其下位知识点
List <string> nodeandchilren = TreeView1.CheckedNodesAndChildrenIds;// 选择的知识点及其子孙知识点id
StringBuilder nodeandchildrenSB = new StringBuilder();
//从题库中查询符合条件的题目
SqlConnection conn = new SqlConnection();
conn.ConnectionString = ConfigurationManager.ConnectionStrings["kecheng2012ConnectionString"].ConnectionString;
SqlCommand comm = conn.CreateCommand();
//建立临时表，记录选择的知识点id号
string temptablename = "#temptable" + username + DateTime.Now.Ticks.ToString();
comm.CommandText = "create table " + temptablename + "(id int)";
conn.Open();
comm.ExecuteNonQuery();
foreach (string nodeid in nodeandchilren)
{
nodeandchildrenSB.Append(nodeid + ",");
comm.CommandText = "insert into " + temptablename + "(id) values(" + int.Parse(nodeid) + ")";
comm.ExecuteNonQuery();
}
//查询符合条件的第一题
comm.CommandText = "select top 1 questionid from tb_tiku where questionid in( select questionid from tb_timuzhishidian where questionid not in ( select questionid from tb_timuzhishidian where kechengjiegouid not in (select id from " + temptablename + ")))";
SqlDataReader sdr = comm.ExecuteReader();
if (sdr.HasRows)
{
timucunzai = true;
}
sdr.Close();
conn.Close();
HiddenFieldnodeandchildren.Value = nodeandchildrenSB.ToString();//把选择的知识点及其下位知识点保存在hiddenfield中,以便以后使用
if (!timucunzai)
{
ScriptManager.RegisterClientScriptBlock(this, typeof(String), "", "<script language='javascript'>alert('没有找到您选择的知识点的题目，请选择其他知识点!');</script>", false);
}
if (banjicunzai && timucunzai)
{
Wizard1.ActiveStepIndex = 1;
}
}
protected void StepNextButton_Click(object sender, EventArgs e)//检查测试名称是否可用,收集组卷信息，跳转到下一步,绑定试题
{
//检查测试名称是否可用
string kechengid = Session["kechengid"].ToString();
string username = ((FormsIdentity)HttpContext.Current.User.Identity).Ticket.Name;
string ceshiname = TextBoxceshimingcheng.Text.Trim(); //测试名称
string xianzhiip = (chbxianzhiip.Checked ? "是" : "否"); //是否限制IP
if (CheckCeshiName(int.Parse(kechengid), ceshiname, username)) //检查测试名称是否可用
{
ScriptManager.RegisterClientScriptBlock(this, typeof(string), "", "<script language='javascript'>alert('您的该课程的该试卷名称已使用，请选择其它名称。');</script>", false);
return;
}
SqlConnection conn = new SqlConnection();
conn.ConnectionString = ConfigurationManager.ConnectionStrings["kecheng2012ConnectionString"].ConnectionString;
SqlCommand comm = conn.CreateCommand();
//检查所选班级有无学生，如果没有学生，则不能组卷
string banjiid = DropDownList_banji.SelectedValue;//测试班级ID
comm.CommandText = "select count(studentusername) from tb_banjistudent where banjiid=" + banjiid;
conn.Open();
int banjistudentshuliang = (int)(comm.ExecuteScalar());
conn.Close();
if (banjistudentshuliang <= 0)
{
ScriptManager.RegisterClientScriptBlock(this, typeof(string), "", "<script language='javascript'>alert('所选班级没有学生，不能组卷！请前往添加学生。');</script>", false);
return;
}
//收集组卷信息，跳转到下一步
StringBuilder tixingxuanzexinxi = new StringBuilder();
string tishi = "";
if (RadioButtonListxuantifangshi.SelectedValue == "0")
{
tishi = "应该选择";
}
else
{
tishi = "应至少选择";
}
StringBuilder tishiSB = new StringBuilder();
string[] tixingshuzu = HiddenFieldtixings.Value.Split(','); //要选择哪些题型
DropDownList tixuzeshuDropdownList; //显示某题型有多少道题的
List <string> tixings = new List <string>(); //选择了哪些题型
foreach (string tixing in tixingshuzu)
{
if (tixing.Length > 0)
{
tixuzeshuDropdownList = (DropDownList)(PlaceHolder1.FindControl("tixing" + tixing));
if (tixuzeshuDropdownList != null && tixuzeshuDropdownList.SelectedIndex != 0)
{
tixings.Add(tixing);
tishiSB.Append(tixing + "有" + (tixuzeshuDropdownList.Items.Count - 1).ToString() + tishi + tixuzeshuDropdownList.SelectedValue + "道.<br/>");
}
}
}
Literalxuantitishi.Text = tishiSB.ToString();
//绑定备选题目GridView
List <string> nodeandchildren = TreeView1.CheckedNodesAndChildrenIds;//选中的知识点及其子孙知识点
DataTable dt = GetTimuDataTable(nodeandchildren, tixings);
GridView1.DataSource = dt;
GridView1.DataBind(); //绑定题目gridview
if (RadioButtonListxuantifangshi.SelectedIndex != 2) //手工组卷和半自动组卷
{
Wizard1.ActiveStepIndex = 2;
}
else//全自动组卷
{
#region 准备工作，获取组卷数据
List <string> nodeandchilren = TreeView1.CheckedNodesAndChildrenIds; //选择的知识点及其子孙知识点id
StringBuilder timufenzhixinxi = new StringBuilder();
int ceshishichang = int.Parse(DropDownList4.SelectedValue); //测试时间长度
string yunxuzuoti = RadioButtonList9.SelectedValue; //是否允许学生做题
string ceshibanji = DropDownList_banji.SelectedItem.Text; //测试班级
string mingtifangshi = RadioButtonListzujuanfangshi.SelectedValue; //命题方式，统一命题，每个学生的题目不同，对学生保密
string yunxuchakan = RadioButtonList10.SelectedValue;
int manfen = 100;
#endregion
bool zujuanchenggong = true;
int xuanzeshu = 0;
int tifenzhi = 0;
List <string> tixingXuanzeList = new List <string>();
List <int> tixingshuliangList = new List <int>();
List <int> tixingfenzhiList = new List <int>();
List <int> studentxuhaoList = new List <int>();
List <string> studentxingmingList = new List <string>();
DropDownList tifenzhiDropdownList;
comm.CommandText = "select mingcheng from tb_timuleixing order by tixingid";
conn.Open();
SqlDataReader sdr = comm.ExecuteReader();
while (sdr.Read())
{
tixuzeshuDropdownList = (DropDownList)(PlaceHolder1.FindControl("tixing" + sdr.GetString(0)));
if (tixuzeshuDropdownList != null)
{
xuanzeshu = int.Parse(tixuzeshuDropdownList.SelectedValue);
if (xuanzeshu > 0)
{
timufenzhixinxi.Append(sdr.GetString(0) + ":" + tixuzeshuDropdownList.SelectedValue + "道，每题");
tixingXuanzeList.Add(sdr.GetString(0)); //选择了哪些题型
tifenzhiDropdownList = (DropDownList)(PlaceHolder1.FindControl("timufenzhi" + sdr.GetString(0)));
tixingshuliangList.Add(xuanzeshu); //每种题型数量
tifenzhi = int.Parse(tifenzhiDropdownList.SelectedValue);
timufenzhixinxi.Append(tifenzhi.ToString() + "分;");
tixingfenzhiList.Add(tifenzhi);//每种题型分值
}
}
}
sdr.Close();
conn.Close();
List <int>[] beixuanTihaoList = new List <int> [tixingXuanzeList.Count]; //各种题型备选的questionid列表
List <int>[] xuanzhongTihaoList = new List <int> [tixingXuanzeList.Count]; //各种题型选中的questionid列表
for (int i = 0; i < tixingXuanzeList.Count; i++)
{
beixuanTihaoList[i] = new List <int>();
xuanzhongTihaoList[i] = new List <int>();
}
string temptablename = "temp_table" + username + DateTime.Now.Ticks.ToString();
comm.CommandText = "create table " + temptablename + "(id int)";
conn.Open();
comm.ExecuteNonQuery();
foreach (string nodeid in nodeandchilren)
{
comm.CommandText = "insert into " + temptablename + "(id) values(" + int.Parse(nodeid) + ")";
comm.ExecuteNonQuery();
}
string sqlstr = "select questionid,type from tb_tiku where(";
for (int i = 0; i < tixingXuanzeList.Count; i++)//添加题型条件
{
if (i == 0)
{
sqlstr += "type='" + tixingXuanzeList[i] + "'";
}
else
{
sqlstr += " or type='" + tixingXuanzeList[i] + "'";
}
}
sqlstr += ")";
sqlstr += " and questionid in ( select questionid from tb_timuzhishidian where questionid not in ( select questionid from tb_timuzhishidian where kechengjiegouid not in (select id from " + temptablename + "))) order by type";
comm.CommandText = sqlstr;
sdr = comm.ExecuteReader();
int tixinghao;
int tihao;
while (sdr.Read())
{
tixinghao = tixingXuanzeList.IndexOf(sdr.GetString(1));//得到题型在列表中的编号
beixuanTihaoList[tixinghao].Add(sdr.GetInt32(0));
}
sdr.Close();
//随机选则题目，为统一组卷，全体学生相同或对学生保密的情况
try
{
comm.CommandText = "drop table " + temptablename;
comm.ExecuteNonQuery();
}
finally
{
if (conn.State == ConnectionState.Open)
{
conn.Close();
}
}
Random r = new Random();
for (int i = 0; i < tixingXuanzeList.Count; i++)
{
tixinghao = 0;
while (tixinghao < tixingshuliangList[i])
{
tihao = r.Next(beixuanTihaoList[i].Count);
if (!xuanzhongTihaoList[i].Contains(tihao))
{
xuanzhongTihaoList[i].Add(tihao);
tixinghao++;
}
}
}
//随机选择题目，全体学生不同的情况
List <string> stuusernameList = new List <string>();//学生用户名列表
comm.CommandText = "select tb_banjistudent.xuhao,tb_banjistudent.studentusername,tb_student.xingming from tb_banjistudent,tb_student where tb_banjistudent.banjiid=" + banjiid + " and tb_banjistudent.studentusername=tb_student.username order by tb_banjistudent.xuhao";
conn.Open();
sdr = comm.ExecuteReader();
while (sdr.Read())
{
studentxuhaoList.Add(sdr.GetInt32(0));
stuusernameList.Add(sdr.GetString(1));
studentxingmingList.Add(sdr.GetString(2));
}
sdr.Close();
conn.Close();
List <int>[,] stusuijiXuantiList = new List <int> [stuusernameList.Count, tixingshuliangList.Count];//记录题型i随机选择的题目在题目ID列表中的下标
for (int i = 0; i < stuusernameList.Count; i++)
{
for (int j = 0; j < tixingshuliangList.Count; j++)
{
stusuijiXuantiList[i, j] = new List <int>();
}
}
//开始随机选题
for (int i = 0; i < stuusernameList.Count; i++)
{
for (int j = 0; j < tixingshuliangList.Count; j++)
{
int yixuantimushu = 0;
while (yixuantimushu < tixingshuliangList[j])
{
tihao = r.Next(beixuanTihaoList[j].Count);
if (!stusuijiXuantiList[i, j].Contains(tihao))
{
stusuijiXuantiList[i, j].Add(tihao);
yixuantimushu++;
}
}
}
}
//写入数据库
int shijuanid = 0;
StringBuilder studentzujuanxinxi = new StringBuilder();
conn.Open();
SqlTransaction st = conn.BeginTransaction();
comm.Transaction = st;
try
{
//第一步：写入教师试卷表,得到试卷ｉｄ
comm.CommandText = "insert into tb_teachershijuan(teacherusername,ceshiname,createtime,timelength,manfen,mingtifangshi,kechengid,ceshibanji,banjiid,yunxuzuoti,yunxuchakan,xianzhiip) values('" + username + "','" + ceshiname + "','" + DateTime.Now.ToString() + "'," + ceshishichang + "," + manfen + ",'" + mingtifangshi + "'," + kechengid + ",'" + ceshibanji + "'," + banjiid + ",'" + yunxuzuoti + "','" + yunxuchakan + "','" + xianzhiip + "') select @@identity as shijuanid";
shijuanid = Convert.ToInt32(comm.ExecuteScalar());
////写入组卷知识点
//第二步：写入教师试卷题目表
if (mingtifangshi == "全体学生相同" || mingtifangshi == "对学生保密")
{
tihao = 1;
for (int i = 0; i < tixingXuanzeList.Count; i++)
{
for (int j = 0; j < xuanzhongTihaoList[i].Count; j++)
{
comm.CommandText = "insert into tb_teachershijuantimu(shijuanid,questionid,fenzhi,tihao) values(" + shijuanid + "," + beixuanTihaoList[i][xuanzhongTihaoList[i][j]] + "," + tixingfenzhiList[i] + "," + tihao + ")";
comm.ExecuteNonQuery();
tihao++;
}
}
}
//第三步：写入学生试卷表
if (mingtifangshi == "全体学生相同" || mingtifangshi == "全体学生不同")
{
for (int i = 0; i < stuusernameList.Count; i++)
{
comm.CommandText = "insert into tb_studentkaoshi(shijuanid,studentusername,zongfen,yunxu,kechengid,banjiid,jiaojuan) values(" + shijuanid + ",'" + stuusernameList[i] + "',0,'" + yunxuzuoti + "'," + kechengid + "," + banjiid + ",'未开始')";
comm.ExecuteNonQuery();
studentzujuanxinxi.Append(studentxuhaoList[i].ToString() + ",姓名：" + studentxingmingList[i] + ",学号：" + stuusernameList[i] + ";</br>");
}
}
else
{
studentzujuanxinxi.Append("组卷类型为只组一套卷，因此没有学生试卷，此试卷对学生报密。");
}
//第四步：写入学生试题表
if (mingtifangshi == "全体学生相同")
{
foreach (string stuusername in stuusernameList)
{
tihao = 1;
for (int i = 0; i < tixingXuanzeList.Count; i++)
{
for (int j = 0; j < xuanzhongTihaoList[i].Count; j++)
{
comm.CommandText = "insert into tb_studentkaoshiti(studentusername,shijuanid,questionid,fenzhi,timuhao) values('" + stuusername + "'," + shijuanid + "," + beixuanTihaoList[i][xuanzhongTihaoList[i][j]] + "," + tixingfenzhiList[i] + "," + tihao + ")";
comm.ExecuteNonQuery();
tihao++;
}
}
}
}
else if (mingtifangshi == "全体学生不同")
{
for (int k = 0; k < stuusernameList.Count; k++)
{
tihao = 1;
for (int i = 0; i < tixingXuanzeList.Count; i++)
{
for (int j = 0; j < tixingshuliangList[i]; j++)
{
comm.CommandText = "insert into tb_studentkaoshiti(studentusername,shijuanid,questionid,fenzhi,timuhao) values('" + stuusernameList[k] + "'," + shijuanid + "," + beixuanTihaoList[i][stusuijiXuantiList[k, i][j]] + "," + tixingfenzhiList[i] + "," + tihao + ")";
comm.ExecuteNonQuery();
tihao++;
}
}
}
}
st.Commit();
zujuanchenggong = true;
}
catch (Exception ex)
{
st.Rollback();
zujuanchenggong = false;
ScriptManager.RegisterClientScriptBlock(this, typeof(string), "", "<script language='javascript'>alert('组卷失败！原因：" + ex.Message + ".');</script>", false);
}
finally
{
if (conn.State == ConnectionState.Open)
{
conn.Close();
}
}
if (zujuanchenggong)
{
Wizard1.ActiveStepIndex = 3;
Labelceshimingcheng.Text = TextBoxceshimingcheng.Text;
Labelkecheng.Text = KechengInfo.getKechengname(kechengid);
Labelzujuanfangshi.Text = RadioButtonListzujuanfangshi.SelectedValue;
Labelzhishidian.Text = TreeView1.CheckedNodesText;
Labelyunxu.Text = RadioButtonList9.SelectedValue; //是否允许做题
Labelshichang.Text = DropDownList4.SelectedValue; //时长
Labelbanji.Text = DropDownList_banji.SelectedItem.Text; //班级
Labeltixing.Text = HiddenFieldtixings.Value;
Literalstudentxiangxi.Text = studentzujuanxinxi.ToString();
Labelxianzhiip.Text = (chbxianzhiip.Checked ? "限制IP,学生考试时IP地址必须唯一" : "不限制IP");
Labelyunxuchakan.Text = yunxuchakan;
}
}//end of全自动组卷
}
protected void Buttonloginin_Click(object sender, EventArgs e)
{
Labelerror.Text = "";
bool yonghukeyong = true;
string username = TextBoxusername.Text.Trim();
string password = TextBoxpassword.Text.Trim();
string shenfen = RadioButtonListshenfen.SelectedValue.ToString().Trim();
SqlConnection conn = new SqlConnection();
conn.ConnectionString = ConfigurationManager.ConnectionStrings["kecheng2012ConnectionString"].ConnectionString;
SqlCommand comm = conn.CreateCommand();
bool chenggong = false;
SqlDataReader sdr;
conn.Open();
if (shenfen == "teacher")
{
comm.CommandText = "select [password],[keyong] from [tb_teacher] where [username]=@username";
comm.Parameters.AddWithValue("@username", username);
sdr = comm.ExecuteReader();
if (sdr.Read())
{
if (sdr.GetString(0).Trim() == password)
{
chenggong = true;
}
if (sdr.GetString(1).Trim() == "否")
{
yonghukeyong = false;
}
}
sdr.Close();
}
else if (shenfen == "student")
{
comm.CommandText = "select [password] from [tb_Student] where [username]= @username";
comm.Parameters.AddWithValue("@username", username);
sdr = comm.ExecuteReader();
if (sdr.Read())
{
if (sdr.GetString(0).Trim() == password)
{
chenggong = true;
}
}
sdr.Close();
}
else//管理员
{
comm.CommandText = "select [password],[manager],[keyong] from [tb_teacher] where [username]=@username";
comm.Parameters.AddWithValue("@username", username);
sdr = comm.ExecuteReader();
if (sdr.Read())
{
string userpassword = sdr.GetString(0);
if (!sdr.IsDBNull(1))
{
string ismanager = sdr.GetString(1);
if (userpassword == password && (ismanager == "manager" || ismanager == "supermanager"))
{
chenggong = true;
}
}
if (sdr.GetString(2).Trim() == "否")
{
yonghukeyong = false;
}
}
sdr.Close();
}
conn.Close();
comm.Dispose();
//创建认证票据
if (chenggong && yonghukeyong)
{
FormsAuthentication.Initialize();
FormsAuthenticationTicket ticket = new FormsAuthenticationTicket(
1, //票据版本号
username, //票据持有者
DateTime.Now, //分配票据的时间
DateTime.Now.AddHours(3), //失效时间
true, //需要用户的cookie
shenfen, //用户的角色
FormsAuthentication.FormsCookiePath); //cookie有效路径
string hash = FormsAuthentication.Encrypt(ticket); //加密
HttpCookie cookie = new HttpCookie(FormsAuthentication.FormsCookieName, hash); //加密之后的cookie
cookie.Expires = ticket.Expiration;
//添加cookie到页面请求响应中
Response.Cookies.Add(cookie);
string returnurl = "";
if (shenfen == "teacher")
{
returnurl = "teacher/Default.aspx";
}
else if (shenfen == "student")
{
if (KechengInfo.GetKechengCount() > 0)
{
Session["kechengid"] = KechengInfo.MinKechengid();
}
returnurl = "student/Default.aspx";
}
else if (shenfen == "manager")
{
returnurl = "manager/tianjiabanji.aspx";
}
Response.Redirect(returnurl);
}
else
{
if (!yonghukeyong)
{
Labelerror.Text = "该用户已被禁用，请与管理员联系！";
}
else
{
Labelerror.Text = "用户名或密码错误！请重试！";
}
}
}
