GalaSoft data binding

[Markus]

Hi,

try to bind the ItemsSource of a BarSeries to a collection of my ViewModel. I have the following code:

_barSeries = new BarSeries {
    ListenPropertyChange = true,
    XBindingPath = nameof(ChartData.Name),
    YBindingPath = nameof(ChartData.Value),
    TooltipEnabled = true,
    EnableAnimation = true,
    AnimationDuration = 0.8
};
_chartView.Series.Add(_barSeries);

var test = this.SetBinding(() => ViewModel.ChartCollection, () => _barSeries.ItemsSource);

But the chartview doesn't show anything. Is it possible to do a data binding with Xamarin.Android SfChart? Any suggestions? Thank you.

[Rachel A]

Hi Markus, 

 

Thanks for contacting Syncfusion Support. 

 

We have analyzed your code snippet and tried to bind the ItemSource of a BarSeries to a collection of ViewModel. But we are unable to bind the ItemSource property as it is of type IEnumerable. So, we have achieved your requirement by creating a custom class inheriting BarSeries and creating a property of type ObservableCollection and binding that property to ViewModel collection. We have attached the sample for your reference, and it can be downloaded from the below link. 

 

Sample - https://www.syncfusion.com/downloads/support/directtrac/145567/ze/145567_data_binding2180709.zip 

 

Code snippet [C#] - BarSeriesExt 

public class BarseriesExt : BarSeries 

{ 

    private ObservableCollection<ChartData> data; 

    public ObservableCollection<ChartData> Data 

    { 

        get { return data; } 

        set 

        { 

            if (data != value) 

            { 

                data = value; 

                ItemsSource = data; 

            } 

        } 

    } 

} 

 

Code snippet [C#] – MainActivity.cs 

this.SetBinding(() => Vm.BarData, () => Series.Data); 

 

Please let us know if you have any concerns. 

 

Regards, 

Rachel. 

 

[Markus]

Thank you, for your reply. With this hint, I can add my bindings.

[Rachel A]

Hi Markus, 

 

Thanks for the update. 

 

Please revert to us if you have any queries. 

 

Thanks, 

Rachel.