public Task <int> SaveItemAsync(ClassData item)
{
if (item.ID != 0)
{
return(database.UpdateAsync(item));
}
else
{
return(database.InsertAsync(item));
}
}
async void EditClicked(object sender, EventArgs e)
{
ClassData cd = new ClassData();
try
{
cd = BindingContext as ClassData;
cd.Date = DateTime.Parse(date.Text);
cd.Class = className.Text;
cd.Quantity = quantiry.Text;
}
catch
{
await DisplayAlert("エラー", "日時を正しく入力してください", "閉じる");
return;
}
await App.FoodDatabase.SaveItemAsync(cd);
await DisplayAlert("成功", "内容を編集しました", "戻る");
return;
}
public Task <int> DeleteItemAsync(ClassData item)
{
return(database.DeleteAsync(item));
}