Hello,
I'm new to the Syncfusion Framework (and also to the WPF at whole). I want to use the DataTreeControl to display a hierarchy of data which will be loaded and updated in a reoccuring interval. But for some reason it doesn't display the data.
Here's a snipped from my MainWindow.xaml
<syncfusion:TabItemExt Name="_tabItemTipps" Header="Tipps">
<syncfusion:GridTreeControl Name="_treeGrid"
BorderBrush="LightGray"
BorderThickness="0,0.5,0,0"
EnableHotRowMarker="False"
EnableNodeSelection="True"
ExpandStateAtStartUp="AllNodesExpanded"
ReadOnly="True"
SupportNodeImages="True"
VisualStyle="Metro"
ItemsSource="SoccerMarkets"
>
<!-- Code for GridTreeControl Columns -->
<syncfusion:GridTreeControl.Columns>
<syncfusion:GridTreeColumn HeaderText="Nation" MappingName="{Binding RoughCat}"></syncfusion:GridTreeColumn>
</syncfusion:GridTreeControl.Columns>
</syncfusion:GridTreeControl>
</syncfusion:TabItemExt>
This the snippet from MainWindow.xaml.cs where the DataContext is set:
public MainWindow()
{
DataContext = this;
InitializeComponent();
SkinStorage.SetVisualStyle(_tabControl, "Metro");
_settingsVM = new AppSettingsVM();
_txtBetdaqUser.DataContext = _settingsVM;
_chkSystemActive.DataContext = _settingsVM;
_chkInSimulationMode.DataContext = _settingsVM;
_mechanic = new TippMechanic(_settingsVM);
_soccerMarketsVM = new SoccerMarketVM();
Task[] tasks = new Task[1];
tasks[0] = Task.Factory.StartNew(async () => await _mechanic.Init());// _mechanic.Init();
Task.WaitAll(tasks);
_soccerMarketsVM.SoccerMarkets = _mechanic.SoccerMarketManager.SoccerMarkets;
_treeGrid.DataContext = _soccerMarketsVM.SoccerMarkets;
}
My ViewModel (_soccerMarketsVM) is defined this way:
class SoccerMarketVM : ObservableObject
{
private ObservableCollection<SoccerMarket> _soccerMarkets;
public ObservableCollection<SoccerMarket> SoccerMarkets
{
get { return _soccerMarkets; }
set
{
if(_soccerMarkets != null)
_soccerMarkets.CollectionChanged -= _soccerMarkets_CollectionChanged;
_soccerMarkets = value;
_soccerMarkets.CollectionChanged += _soccerMarkets_CollectionChanged;
}
}
public SoccerMarketVM()
{
//_soccerMarkets = new ObservableCollection<SoccerMarket>();
//_soccerMarkets.CollectionChanged += _soccerMarkets_CollectionChanged;
}
void _soccerMarkets_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
{
Console.WriteLine(e.Action.ToString());
}
}
The Events for CollectionChanged are fired and I get the Console.Writeline output.
Does anyone see's something wrong here?
