private student2 GetLastStudent()
{
var mNum = -1;
student2 lastStudent = null;
foreach (student2 s in dgStudent.Items.SourceCollection)
{
if (s.num > mNum)
{
mNum = s.num;
lastStudent = s;
}
}
return(lastStudent);
}
private string GetName(object obj)
{
if (obj is student2)
{
student2 s = ((student2)obj);
int cnt = S.DB.history.Count(history => history.sid == s.sid);
return($"{s.num:D2}. {s.name} ({cnt})");
}
if (obj is @group2)
{
@group2 g = ((@group2)obj);
return($"{g.name}");
}
return("");
}
private void DrawLots(object sender, RoutedEventArgs e)
{
student2[] sPool = GetStudentPool();
student2 s = sPool[rand.Next(sPool.Length)];
ShowDynamicResults(sPool, s, new Action(() =>
{
S.DB.history.Add(new history2()
{
sid = s.sid,
cid = s.cid,
date = DateTime.Now,
});
S.DB.SaveChanges();
}), new Action(LoadStudents));
}
private void SelectStudentGroup(@group2 g)
{
student2[] ss = S.DB.student.Where(s => s.cid == cid && s.gid == g.gid).ToArray();
var panel = NamePanel;
List <object> objs = new List <object>();
foreach (object obj in panel.Children)
{
if (obj is ToggleButton)
{
if (((ToggleButton)obj).Tag is student2)
{
student2 s = ((ToggleButton)obj).Tag as student2;
((ToggleButton)obj).IsChecked = ss.Contains(s);
}
}
}
}