async void changer(DateTimeOffset dat, string subj, string grp, string name, int val)
{
StorageFolder folder = ApplicationData.Current.LocalFolder;
StorageFile file = await folder.CreateFileAsync("db_TeacherRecords.xml", CreationCollisionOption.ReplaceExisting);
XmlSerializer serializerSubjects = new XmlSerializer(typeof(List <TeacherRecord>));
TeacherRecord record = new TeacherRecord()
{
data = dat.Date.ToString(),
subject = subj,
group = grp,
student = name,
};
if (val == 0)
{
record.value = "nb";
}
else
{
record.value = val.ToString();
}
listrecords.Add(record);
Stream stream = await file.OpenStreamForWriteAsync();
serializerSubjects.Serialize(stream, listrecords);
stream.Close();
ListOfRecords.Items.Add(dat.Date.ToString() + ':' + subj + ':' + grp + ':' + name + ':' + record.value);
}
async void getter()
{
TeacherRecord record = new TeacherRecord();
StorageFolder folder = ApplicationData.Current.LocalFolder;
StorageFile file = await folder.CreateFileAsync("db_TeacherRecords.xml", CreationCollisionOption.OpenIfExists);
XmlSerializer serializerRecords = new XmlSerializer(typeof(List <TeacherRecord>));
try
{
using (Stream stream = await file.OpenStreamForReadAsync())
{
listrecords = (List <TeacherRecord>)serializerRecords.Deserialize(stream);
}
}
catch
{
}
ListOfRecords.Items.Clear();
for (int count = 0; count < listrecords.Count; count++)
{
ListOfRecords.Items.Add(listrecords[count].data + ':' + listrecords[count].subject + ':' + listrecords[count].group + ':' + listrecords[count].student + ':' + listrecords[count].value);
}
}
async void getter_reconds()
{
TeacherRecord record = new TeacherRecord();
StorageFolder folder = ApplicationData.Current.LocalFolder;
StorageFile file = await folder.CreateFileAsync("db_TeacherRecords.xml", CreationCollisionOption.OpenIfExists);
XmlSerializer serializerRecords = new XmlSerializer(typeof(List <TeacherRecord>));
try
{
using (Stream stream = await file.OpenStreamForReadAsync())
{
listrecords = (List <TeacherRecord>)serializerRecords.Deserialize(stream);
}
}
catch
{
}
for (int count = 0; count < listrecords.Count; count++)
{
if (listrecords[count].student == login)
{
records.Add(listrecords[count]);
}
}
}