In simple mode, binding works correctly.
..............
//Define property
private float start;
public float Start
{
get => start;
set
{
if (value == Start) return;
start = value;
OnPropertyChanget("Start");
}
}
..............................................
//Binding
radTrackBar1.DataBindings.Add("Value", Data, "Start", true, DataSourceUpdateMode.OnPropertyChanged);
radTrackBar2.DataBindings.Add("Value", Data, "Start", true, DataSourceUpdateMode.OnPropertyChanged);
.........................................................
How can I use binding in range mod?
radTrackBar1.Ranges[0].Start = 1;
radTrackBar1.Ranges[0].End = 50;
radTrackBar2.Ranges[0].Start = 1;
radTrackBar2.Ranges[0].End = 50;
//Define property ??????????????????????
//Binding ??????????????????????????
Thanks!
1 Answer, 1 is accepted
Currently, It is not possible to use simple data binding with the range mode, we have a feature request that will allow this. You can track its progress, subscribe to status changes and add your comment to it here: ADD. RadTrackBar - new event notifying that a range start or end has changed.
At this point, you can use the events to synchronize the properties. Here is a complete example that shows this:
public partial class RadForm1 : Telerik.WinControls.UI.RadForm{ MyClass data; public RadForm1() { InitializeComponent(); this.radTrackBar1.Ranges[0].Start = 2; this.radTrackBar1.Ranges[0].End = 5; data = new MyClass() { Start = 5, End = 10 }; data.PropertyChanged += Data_PropertyChanged; this.radTrackBar1.Ranges.CollectionChanged += Ranges_CollectionChanged; } void Ranges_CollectionChanged(object sender, Telerik.WinControls.Data.NotifyCollectionChangedEventArgs e) { if (e.Action == Telerik.WinControls.Data.NotifyCollectionChangedAction.ItemChanged) { foreach (object item in e.NewItems) { TrackBarRange range = item as TrackBarRange; if (range != null) { data.Start = range.Start; data.End = range.End; } } } } private void Data_PropertyChanged(object sender, PropertyChangedEventArgs e) { var data = sender as MyClass; radTrackBar1.Ranges[0].Start = data.Start; radTrackBar1.Ranges[0].End = data.End; } }class MyClass : INotifyPropertyChanged{ private float start; private float end; public float Start { get => start; set { if (value == start) { return; } start = value; OnPropertyChanged("Start"); } } public float End { get => end; set { if (value == end) { return; } end = value; OnPropertyChanged("End"); } } public event PropertyChangedEventHandler PropertyChanged; public void OnPropertyChanged(string propertyName) { if (this.PropertyChanged != null) { PropertyChanged(this, new PropertyChangedEventArgs(propertyName)); } }}I hope this will be useful. Let me know if you have additional questions.
Regards,
Dimitar
Progress Telerik