private void btn_cidsearch_Click(object sender, EventArgs e)
{
label_avg.Text = "";
label_min.Text = "";
label_num.Text = "";
label_max.Text = "";
string cid = cbox_cid.Text.Trim();
if (cid == "")
{
this.info_data.DataSource = Ad_ChooseManage.Query("select * from choices where cid in (select cid from costea where tid = '" + tid + "')").Tables["choices"];
}
else
{
this.info_data.DataSource = Ad_ChooseManage.Query("select * from choices where cid = '" + cid + "' and '" + cid + "' in ( select cid from costea where tid = '" + tid + "')").Tables["choices"];
if (this.info_data.RowCount == 0)
{
label_avg.Text = "0";
label_min.Text = "0";
label_num.Text = "0";
label_max.Text = "0";
}
statistics_1(cid);
}
}
private void btn_choose_Click(object sender, EventArgs e)
{
Ad_ChooseManage childrenForm = new Ad_ChooseManage(this);
childrenForm.Owner = this;
this.Hide();
childrenForm.Show();
}
public Ad_AddRecord(Ad_ChooseManage parent)
{
InitializeComponent();
pform = parent;
string sql1 = "select distinct cterm from choices";
if (Ad_ChooseManage.ExecuteSql(sql1) != 0)
{
this.cbox_term.DataSource = Ad_ChooseManage.Query(sql1).Tables["choices"];
cbox_term.DisplayMember = "cterm";
}
}
private void btn_confirm_Click(object sender, EventArgs e)
{
string newsid = tbox_sid.Text.Trim();
string newcid = tbox_cid.Text.Trim();
string cterm = cbox_term.Text;
string cscore = tbox_score.Text.Trim();
string istrue = cbox_repeat.Text;
string sql = "update choices set sid = '" + newsid + "',cid='" + newcid + "',cterm=" + int.Parse(cterm) + ",cscore=" + int.Parse(cscore) + ",istrue='" + istrue + "' where sid = '" + oldsid + "' and cid = '" + oldcid + "'";
if (Ad_ChooseManage.ExecuteSql(sql) != 0)
{
MessageBox.Show("修改成功！");
}
this.pform.Show();
this.Close();
}
private void btn_confirm_Click(object sender, EventArgs e)
{
string sid = tbox_sid.Text.Trim();
string cid = tbox_cid.Text.Trim();
string cterm = cbox_term.Text;
string cscore = tbox_score.Text.Trim();
string istrue = cbox_repeat.Text;
string sql = "insert into choices(sid,cid,cterm,cscore,istrue) values('" + sid + "','" + cid + "'," + int.Parse(cterm) + "," + int.Parse(cscore) + ",'" + istrue + "')";
if (Ad_ChooseManage.ExecuteSql(sql) != 0)//向源数据库传递并执行SQL语句
{
MessageBox.Show("选课信息添加成功！");
}
this.pform.Show();
this.Close();
}
private void btn_sidsearch_Click(object sender, EventArgs e)
{
label_avg.Text = "";
label_min.Text = "";
label_num.Text = "";
label_max.Text = "";
string sid = tbox_sid.Text.Trim();
if (sid == "")
{
this.info_data.DataSource = Ad_ChooseManage.Query("select * from choices where cid in ( select cid from costea where tid = '" + tid + "')").Tables["choices"];
}
else
{
this.info_data.DataSource = Ad_ChooseManage.Query("select * from choices where sid = '" + sid + "' and cid in ( select cid from costea where tid = '" + tid + "')").Tables["choices"];
}
}
public Ad_UpdateRecord(Ad_ChooseManage parent, string sid, string cid, string cterm, string csore, string istrue)
{
InitializeComponent();
pform = parent;
tbox_sid.Text = sid;
tbox_cid.Text = cid;
cbox_term.Text = cterm;
tbox_score.Text = csore;
cbox_repeat.Text = istrue;
oldsid = sid;
oldcid = cid;
string sql1 = "select distinct cterm from choices";
if (Ad_ChooseManage.ExecuteSql(sql1) != 0)
{
this.cbox_term.DataSource = Ad_ChooseManage.Query(sql1).Tables["choices"];
cbox_term.DisplayMember = "cterm";
}
}
public Stu_Search(LoginIn_Stu parent, string id)
{
InitializeComponent();
pform = parent;
sid = id;
string sql = "select distinct cid from choices where sid = '" + sid + "'";
if (Ad_ChooseManage.ExecuteSql(sql) != 0)
{
this.cbox_cid.DataSource = Ad_ChooseManage.Query(sql).Tables["choices"];
cbox_cid.DisplayMember = "cid";
}
string sql1 = "select distinct cterm from choices where sid = '" + sid + "'";
if (Ad_ChooseManage.ExecuteSql(sql1) != 0)
{
this.cbox_term.DataSource = Ad_ChooseManage.Query(sql1).Tables["choices"];
cbox_term.DisplayMember = "cterm";
}
}