protected override void OnDelete(Entity item, out string message, ref Action <Entity> afterConfirm)
{
if (afterConfirm == null)
{
throw new ArgumentNullException(nameof(afterConfirm));
}
message = ((Subject)item).SubjectCode + " - " + ((Subject)item).Description;
afterConfirm = currentItem =>
{
try
{
var deletedItem = (Subject)currentItem;
deletedItem.RowStatus = RecordStatus.DeletedRecord;
//Save to Database
var dataWriter = new SubjectDataWriter(App.CurrentUser.User.Username, deletedItem);
dataWriter.SaveChanges();
ItemDataCollection.Remove((Subject)currentItem);
App.LogAction("Subject", "Deleted Subject : " + deletedItem.SubjectCode);
}
catch (Exception ex)
{
MessageDialog.ShowError(ex, this);
}
};
}
void LbSubjectsItemCheck(object sender, ItemCheckEventArgs e)
{
if (loadingSubjects)
{
return;
}
if (e.Index == 0)
{
try
{
ignoreServicesLoading = true;
loadingSubjects = true;
LockUpdate(true);
if (e.NewValue == CheckState.Checked)
{ //all
subjects.Clear();
subjects.AddRange(supportedSubjects);
for (int i = 1; i < lbSubjects.Items.Count; i++)
{
lbSubjects.SetItemCheckState(i, e.NewValue);
}
}
else if (e.NewValue == CheckState.Unchecked)
{
subjects.Clear();
subjects.Add((lbSubjects.Items[1] as SubjectContainer).Subject);
lbSubjects.SetItemCheckState(1, CheckState.Checked);
for (int i = 2; i < lbSubjects.Items.Count; i++)
{
lbSubjects.SetItemCheckState(i, e.NewValue);
}
}
SetLanguages(profile.GetLanguagePairs());
LanguagePairCollection to_delete = new LanguagePairCollection();
int index;
foreach (LanguagePair lp in history)
{
index = Languages.BinarySearch(lp);
if (index < 0)
{
to_delete.Add(lp);
}
}
foreach (LanguagePair lp in to_delete)
{
history.Remove(lp);
}
LoadHistory();
}
finally
{
LockUpdate(false);
ignoreServicesLoading = false;
loadingSubjects = false;
serviceItemsSettings = null; //reset
LoadServices(false);
}
if (SubjectsChanged != null)
{
SubjectsChanged(this, new EventArgs());
}
return;
}
SubjectContainer sc = (SubjectContainer)lbSubjects.Items[e.Index];
if (e.NewValue == CheckState.Checked)
{
subjects.Add(sc.Subject);
}
else if (e.NewValue == CheckState.Unchecked)
{
if (subjects.Count == 1)
{
int new_idx = e.Index;
new_idx++;
if (new_idx >= lbSubjects.Items.Count)
{
new_idx = 1;
}
lbSubjects.SetItemChecked(new_idx, true);
}
subjects.Remove(sc.Subject);
}
try
{
ignoreServicesLoading = true;
SetLanguages(profile.GetLanguagePairs());
LanguagePairCollection to_delete = new LanguagePairCollection();
int index;
foreach (LanguagePair lp in history)
{
index = Languages.BinarySearch(lp);
if (index < 0)
{
to_delete.Add(lp);
}
}
foreach (LanguagePair lp in to_delete)
{
history.Remove(lp);
}
LoadHistory();
}
finally
{
ignoreServicesLoading = false;
serviceItemsSettings = null; //reset
LoadServices(false);
}
if (SubjectsChanged != null)
{
SubjectsChanged(this, new EventArgs());
}
}