public void OnNavigatedTo(NavigationContext navigationContext)
{
if ((null != navigationContext) &&
!navigationContext.Parameters["view"].Equals(_AlertSource))
{
try
{
_AlertSource = (string)navigationContext.Parameters["view"];
Models.AlertManager Alert = _Container.Resolve <Models.AlertManager>();
// Replace Live list
if (null != Lives)
{
_Disposables.Remove(Lives);
}
Lives?.Dispose();
Lives = Alert.GetLiveList(_AlertSource).ToReadOnlyReactiveCollection().AddTo(_Disposables);
// View filter
CollectionViewSource.GetDefaultView(Lives).Filter = x =>
{
if (string.IsNullOrWhiteSpace(FavoriteQuery.Value))
{
return(true);
}
// sanitize
//string escaped = System.Text.RegularExpressions.Regex.Escape(FavoriteQuery.Value);
//return System.Text.RegularExpressions.Regex.IsMatch(x.Title, $"({escaped})+");
return(0 <= (x as Models.LiveItem)?.Descriptors[SelectedFavoriteQueryTarget.Value.Value].IndexOf(FavoriteQuery.Value));
};
// Generate columns
List <Models.LiveItemColumn> columns = new List <Models.LiveItemColumn>();
Models.LiveDescriptor[] descs = Alert.GetQueryTargets(_AlertSource).Keys.ToArray();
for (int i = 0; i < descs.Length; i++)
{
columns.Add(new Models.LiveItemColumn(descs[i].Label, $"Descriptors[{i}]"));
}
columns.Add(new Models.LiveItemColumn("Start Date", nameof(Models.LiveItem.StartDate)));
columns.Add(new Models.LiveItemColumn("URL", nameof(Models.LiveItem.Url)));
LiveColumns = columns.ToArray();
// Notify LiveList PropertyChanged to View
RaisePropertyChanged(nameof(Lives));
RaisePropertyChanged(nameof(LiveColumns));
// Replace query type list
FavoriteQueryTargets = Alert.GetQueryTargets(_AlertSource);
RaisePropertyChanged(nameof(FavoriteQueryTargets));
SelectedFavoriteQueryTarget.Value = FavoriteQueryTargets.First();
// Refresh favorite
CollectionViewSource.GetDefaultView(Favorites).Refresh();
}
catch (Exception ex)
{
_logger.Error(ex);
}
}
}
