async Task ExecLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
Stolies.Clear();
var items = await Stolyies.GetItemsAsync(true);
try
{
foreach (var item in items)
{
Stolies.Add(item);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
finally
{
IsBusy = false;
}
}
public ZkouskaViewModel()
{
Stolies = new ObservableCollection <Models.StolyBackup>();
Stolyies.AddItemAsync(new Models.StolyBackup {
Kapacita = 20, Obsazeno = true
});
Stolyies.AddItemAsync(new Models.StolyBackup {
Kapacita = 20, Obsazeno = true
});
Stolyies.AddItemAsync(new Models.StolyBackup {
Kapacita = 20, Obsazeno = false
});
Stolyies.AddItemAsync(new Models.StolyBackup {
Kapacita = 40, Obsazeno = false
});
Stolyies.AddItemAsync(new Models.StolyBackup {
Kapacita = 20, Obsazeno = true
});
Stolyies.AddItemAsync(new Models.StolyBackup {
Kapacita = 10, Obsazeno = false
});
Stolyies.AddItemAsync(new Models.StolyBackup {
Kapacita = 80, Obsazeno = false
});
Stolyies.AddItemAsync(new Models.StolyBackup {
Kapacita = 20, Obsazeno = true
});
Stolyies.AddItemAsync(new Models.StolyBackup {
Kapacita = 20, Obsazeno = false
});
Stolyies.AddItemAsync(new Models.StolyBackup {
Kapacita = 20, Obsazeno = false
});
Polozky.AddItemAsync(new Models.Polozka {
Cena = 2, Nazev = "Pivo"
});
LoadItemsCommand = new Command(async() => await GetTask());
}
public StolyViewModel()
{
Title = "Stoly";
Stolies = new ObservableCollection <StolyBackup>();
LoadItemsCommand = new Command(async() => await ExecLoadItemsCommand());
///Příjem zprávy
MessagingCenter.Subscribe <StolyNewPage, StolyBackup>(this, "AddTable", async(obj, item) =>
{
var newItem = item as StolyBackup;
try
{
Stolies.Add(newItem);
await Stolyies.AddItemAsync(newItem);
}
catch (Exception e)
{
Debug.WriteLine(e.Message);
}
});
}