/// <summary>
/// Populates the page with content passed during navigation. Any saved state is also
/// provided when recreating a page from a prior session.
/// </summary>
private async void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
{
var sampleDataGroups = await MainPageItemsSource.GetGroupsAsync();
this.DefaultViewModel["Groups"] = sampleDataGroups;
}
/// <summary>
/// To load data when the page starts
/// </summary>
private void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
{
if (e.PageState == null)
{
var param = e.NavigationParameter as NewSurveyPageNavParameter;
DefaultViewModel.RoadSurvey = param.RoadSurvey;
DefaultViewModel.Segments = param.Segments;
lastSurveyIndex = 0;
surveyedIndex = new LinkedList<Int32>();
//CheckBoxCopyFromLastSegment.IsChecked = GlobalPreferences.CopyFromLastSegment;
//CheckBoxCopyFromLastSurvey.IsChecked = GlobalPreferences.CopyFromLastSurvey;
try
{
if (!UsingLogicalPageNavigation() && SegmentViewSource.View != null)
{
SegmentViewSource.View.MoveCurrentToFirst();
}
}
catch (Exception excep)
{
NotificationHelper.ShowErrorMessage(excep.ToString());
}
}
else
{
if (e.PageState.ContainsKey("SelectedItem") && SegmentViewSource.View != null)
{
SegmentViewSource.View.MoveCurrentTo(e.PageState["SelectedItem"]);
}
}
}
/// <summary>
/// Populates the page with content passed during navigation. Any saved state is also
/// provided when recreating a page from a prior session.
/// </summary>
/// <param name="sender">
/// The source of the event; typically <see cref="NavigationHelper"/>
/// </param>
/// <param name="e">Event data that provides both the navigation parameter passed to
/// <see cref="Frame.Navigate(Type, Object)"/> when this page was initially requested and
/// a dictionary of state preserved by this page during an earlier
/// session. The state will be null the first time a page is visited.</param>
private async void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
{
ButtonEditSurvey.IsEnabled = false;
ViewModel.AllRoads = await SyncHelper.GetLocalRoads();
try
{
var selectedRoads = from rd in ViewModel.AllRoads
where rd.PlaceId.Equals(DbHelper.Place.Id)
where rd.isDeleted.Equals(false)
select rd;
ViewModel.Roads = selectedRoads;
//ViewModel.Roads = ViewModel.AllRoads;
if (ViewModel.AllRoads == null || ViewModel.AllRoads.FirstOrDefault() == null)
{
NotificationHelper.ShowErrorMessage(
"Cannot found local copy of the road data. Please download the data by click the 'Sync Data' button");
return;
}
if (!UsingLogicalPageNavigation() && RoadsViewSource.View != null)
{
RoadsViewSource.View.MoveCurrentToFirst();
}
}
catch (Exception ex)
{
ex.ToString();
}
}
/// <summary>
/// Used to create states when the page is first loaded
/// </summary>
private async void navigationHelper_LoadState(object sender, LoadStateEventArgs e)
{
if (e.PageState == null)
{
var _road = await SyncHelper.GetLocalRoads();
ViewModel.AllRoads = _road.Where(rd => rd.isDeleted == false);
//var selectedRoads = from rd in ViewModel.AllRoads
// where rd.PlaceId.Equals(DbHelper.Place.Id)
// select rd;
//ViewModel.Roads = selectedRoads;
ViewModel.Roads = ViewModel.AllRoads;
if (ViewModel.AllRoads == null || ViewModel.AllRoads.FirstOrDefault() == null)
{
NotificationHelper.ShowErrorMessage(
"Cannot found local copy of the road data. Please download the data by click the 'Sync Data' button");
//ButtonStartNewSurvey.IsEnabled = false;
ButtonStartNewSurvey.IsEnabled = true;
ButtonContinueLastSurvey.IsEnabled = false;
return;
}
if (!UsingLogicalPageNavigation() && RoadsViewSource.View != null)
{
RoadsViewSource.View.MoveCurrentToFirst();
}
}
else
{
SearchBox.QueryText = (string)e.PageState["QueryText"];
RoadListUnfinishedFilterCheckBox.IsChecked = (bool)e.PageState["UnfinishedFilterState"];
RoadListDateFilterCheckBox.IsChecked = (bool)e.PageState["DateFilterState"];
if (RoadListDateFilterCheckBox.IsChecked == true)
RoadListDateFilterDatePicker.Date = (DateTimeOffset)e.PageState["DateFilterData"];
if (String.IsNullOrEmpty(SearchBox.QueryText) &&
RoadListUnfinishedFilterCheckBox.IsChecked == false &&
RoadListDateFilterCheckBox.IsChecked == false)
{
ViewModel.AllRoads = await SyncHelper.GetLocalRoads();
var selectedRoads = from rd in ViewModel.AllRoads
where rd.PlaceId.Equals(DbHelper.Place.Id)
select rd;
ViewModel.Roads = selectedRoads;
}
else
{
SearchBox_OnQuerySubmitted(SearchBox, null);
}
}
}