public bool CheckEditTermName(TermItem editingTermItem)
{
var query = from t in Data
where t.Term.ToLower() == editingTermItem.Term.ToLower()
&& t.ID != editingTermItem.ID
select t;
return (query.Count() > 0);
}
protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
if(!NavigationContext.QueryString.ContainsKey("action"))
{//Should never happen
ToastPromptHelper.ShowToastPromptOnUIThreadAtEndOfQueue("Sorry, We have a technical issue, please try later.", 3000);
NavigationService.GoBack();
}
string action = NavigationContext.QueryString["action"];
if (action == "add")
{
PageTitle.Text = "add term";
detailAction = DetailAction.Add;
}
else
{
PageTitle.Text = "edit term";
detailAction = DetailAction.Edit;
if (!PhoneApplicationService.Current.State.ContainsKey("termItem"))
{
//Should never happen
ToastPromptHelper.ShowToastPromptOnUIThreadAtEndOfQueue(
"Sorry, We have a technical issue, please try later.", 3000);
NavigationService.GoBack();
}
editingTermItem = PhoneApplicationService.Current.State["termItem"] as TermItem;
TermTextBox.Text = editingTermItem.Term;
DescriptionTextBox.Text = editingTermItem.Description;
}
if(app.Activated)
{
if (PhoneApplicationService.Current.State.ContainsKey("editingTermItem"))
{
editingTermItem = PhoneApplicationService.Current.State["editingTermItem"] as TermItem;
PhoneApplicationService.Current.State.Remove("editingTermItem");
TermTextBox.Text = editingTermItem.Term;
DescriptionTextBox.Text = editingTermItem.Description;
}
if (PhoneApplicationService.Current.State.ContainsKey("detailAction"))
{
detailAction = (DetailAction)PhoneApplicationService.Current.State["detailAction"];
PhoneApplicationService.Current.State.Remove("detailAction");
}
app.Activated = false;
}
base.OnNavigatedTo(e);
}
protected override void OnNavigatedFrom(System.Windows.Navigation.NavigationEventArgs e)
{
if (detailAction == DetailAction.Add)
{
editingTermItem = new TermItem();
}
editingTermItem.Term = TermTextBox.Text;
editingTermItem.Description = DescriptionTextBox.Text;
PhoneApplicationService.Current.State["editingTermItem"] = editingTermItem;
PhoneApplicationService.Current.State["detailAction"] = detailAction;
base.OnNavigatedFrom(e);
}
public void Edit(TermItem termItem)
{
Remove(termItem.ID);
Data = Data.Add(termItem);
}
