public void OnNavigatedTo(INavigationParameters parameters)
{
if (parameters.GetNavigationMode() == NavigationMode.New)
{
MyTaskRepository fooMyTaskRepository = new MyTaskRepository();
var fooTasks = fooMyTaskRepository.GetMyTask();
foreach (var item in fooTasks)
{
MyTaskItemList.Add(new MyTaskItem
{
MyTaskName = item.MyTaskName,
MyTaskDate = item.MyTaskDate,
MyTaskStatus = item.MyTaskStatus,
});
}
}
else
{
if (parameters.ContainsKey("Mode"))
{
string TaskMode = parameters.GetValue <string>("Mode");
var fooObject = parameters.GetValue <MyTaskItem>("MyTaskItem");
var index = MyTaskItemList.IndexOf(MyTaskItemList.FirstOrDefault(x => x.MyTaskName == fooObject.MyTaskName));
if (TaskMode == "Update")
{
MyTaskItemList[index] = fooObject;
}
else
{
MyTaskItemList.RemoveAt(index);
}
}
}
}
public MainPageViewModel(INavigationService navigationService, IPageDialogService dialogService)
{
this.navigationService = navigationService;
this.dialogService = dialogService;
MyTaskItemSelectedCommand = new DelegateCommand(async() =>
{
//await _dialogService.DisplayAlertAsync("Info", $"你選取的是 {MyTaskItemSelected.MyTaskName}", "OK");
NavigationParameters fooPara = new NavigationParameters();
fooPara.Add("MyTaskItem", MyTaskItemSelected.Clone());
fooPara.Add("Mode", "Edit");
await navigationService.NavigateAsync("TaskDetailPage", fooPara);
});
AddCommand = new DelegateCommand(async() =>
{
NavigationParameters fooPara = new NavigationParameters();
fooPara.Add("Mode", "Add");
await navigationService.NavigateAsync("TaskDetailPage", fooPara);
});
MyTaskRefreshCommand = new DelegateCommand(() =>
{
RefreshIndex++;
MyTaskItemList.Clear();
MyTaskRepository fooMyTaskRepository = new MyTaskRepository();
var fooTasks = fooMyTaskRepository.GetMyTask();
foreach (var item in fooTasks)
{
MyTaskItemList.Add(new MyTaskItem
{
MyTaskName = $"{RefreshIndex} {item.MyTaskName}",
MyTaskDate = item.MyTaskDate,
MyTaskStatus = item.MyTaskStatus,
});
}
RefreshingStatus = false;
});
DeleteCommand = new DelegateCommand <MyTaskItem>(x =>
{
var index = MyTaskItemList.IndexOf(MyTaskItemList.FirstOrDefault(y => y.MyTaskName == x.MyTaskName));
MyTaskItemList.RemoveAt(index);
});
}