private async Task SaveImageDetails(string url)
{
var imageDetails = new ImageDetails();
imageDetails.Title = txtTitle.Text;
imageDetails.Message = txtMessage.Text;
imageDetails.Category = lstCategory.SelectedItem.ToString().ToLower();
imageDetails.Url = url;
imageDetails.IsPublic = chkPublic.IsChecked == true;
if (await imageDetails.Save() == false)
{
MessageBox.Show("Failed to upload the image. Please try again.");
(ApplicationBar.Buttons[1] as ApplicationBarIconButton).IsEnabled = false;
progress.Visibility = System.Windows.Visibility.Collapsed;
}
else
{
//add new item to the list
App.ViewModel.AddItem(imageDetails);
progress.Visibility = System.Windows.Visibility.Collapsed;
appBarCancel_Click();
}
}
private void GestureListener_Flick(object sender, FlickGestureEventArgs e)
{
if (gEdit.Visibility == System.Windows.Visibility.Visible)
{
return;
}
ImageDetails item = null;
if (e.HorizontalVelocity < 0)
{
if (_index + 1 == _contextItems.Count)
{
return;
}
_index++;
//load next
item = _contextItems[_index];
}
else if (e.HorizontalVelocity > 0)
{
if (_index == 0)
{
return;
}
//load previous
_index--;
item = _contextItems[_index];
}
_context = new ItemViewModel(item);
DataContext = _context;
if (!_context.IsDataLoaded)
{
_context.LoadData();
}
}
public void RemoveItem(ImageDetails item)
{
App.ViewModel.FoodItems.Remove(item);
App.ViewModel.PeopleItems.Remove(item);
App.ViewModel.PlaceItems.Remove(item);
this.NoFoodItems = this.FoodItems.Count == 0;
this.NoPlaceItems = this.PlaceItems.Count == 0;
this.NoPeopleItems = this.PeopleItems.Count == 0;
}
public void AddItem(ImageDetails item)
{
//depending upon category, update ViewModel
switch (item.Category)
{
case "place":
App.ViewModel.PlaceItems.Add(item);
App.ViewModel.NoPlaceItems = false;
break;
case "people":
App.ViewModel.PeopleItems.Add(item);
App.ViewModel.NoPeopleItems = false;
break;
default:
App.ViewModel.FoodItems.Add(item);
App.ViewModel.NoFoodItems = false;
break;
}
}
public ItemViewModel(ImageDetails imageDetails)
{
this._imageDetails = imageDetails;
}
