private void createCheckBox()
{
List <Subject> list = tdb.selectSubject_Dat();
int i = 0;
foreach (Subject l in list)
{
checkBox.Add(addCheckBox(l.SubjectID.ToString(), l.SubjectName));
DataTable dt = tdb.selectTeachSubjectByTeacherId_Dat(TeacherId);
DataView dv = new DataView(dt);
dv.RowFilter = "SubjectCode like '" + l.SubjectCode + "'";
if (dv.Count > 0)
{
checkBox[i].Checked = true;
}
i++;
}
}