public Ad_AddStudent(Ad_StuManage parent)
{
InitializeComponent();
pform = parent;
string sql1 = "select distinct sgrade from students";
if (Ad_StuManage.ExecuteSql(sql1) != 0)
{
this.cbox_grade.DataSource = Ad_StuManage.Query(sql1).Tables["students"];
cbox_grade.DisplayMember = "sgrade";
}
}
public Ad_UpdateStudent(Ad_StuManage parent, string sid, string sname, string ssex, string sgrade, string sdept, string syear, string sage)
{
InitializeComponent();
pform = parent;
tbox_sid.Text = sid;
tbox_sname.Text = sname;
cbox_sex.Text = ssex;
cbox_grade.Text = sgrade;
tbox_major.Text = sdept;
cbox_year.Text = syear;
tbox_sage.Text = sage;
oldsid = sid;
string sql1 = "select distinct sgrade from students";
if (Ad_StuManage.ExecuteSql(sql1) != 0)
{
this.cbox_grade.DataSource = Ad_StuManage.Query(sql1).Tables["students"];
cbox_grade.DisplayMember = "sgrade";
}
}
