is there any way to access the radchart who invoked the method???
i only can access to the bar. whne i debug i can see that the bar has a private variable "parent" that references to the RadChart.
but the public property "Parent" is null.
i only can access to the bar. whne i debug i can see that the bar has a private variable "parent" that references to the RadChart.
but the public property "Parent" is null.
1 Answer, 1 is accepted
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Hello dennis,
You can get access to the chart parent by walking the visual tree of the control like this:
We will also consider exposing the chart parent in a more straightforward manner for the future releases of the control.
Regards,
Manuel
the Telerik team
Check out Telerik Trainer , the state of the art learning tool for Telerik products.
You can get access to the chart parent by walking the visual tree of the control like this:
| using System.Windows; |
| using System.Windows.Controls; |
| using System.Windows.Media; |
| using Telerik.Windows.Controls; |
| using Telerik.Windows.Controls.Charting; |
| namespace SilverlightApplication2 |
| { |
| public partial class Page : UserControl |
| { |
| public Page() |
| { |
| InitializeComponent(); |
| DataSeries series = new DataSeries() { new DataPoint(1,10), new DataPoint(2,20), new DataPoint(3, 30) }; |
| RadChart1.DefaultView.ChartArea.DataSeries.Add(series); |
| RadChart1.DefaultView.ChartArea.ChartItemClick += ChartArea_ChartItemClick; |
| } |
| private void ChartArea_ChartItemClick(object sender, ChartItemClickEventArgs e) |
| { |
| RadChart chart = GetVisualParent<RadChart>(e.OriginalSource as DependencyObject); |
| } |
| private static TParent GetVisualParent<TParent>(DependencyObject dependencyObject) where TParent : DependencyObject |
| { |
| DependencyObject parent = null; |
| if (dependencyObject != null) |
| parent = VisualTreeHelper.GetParent(dependencyObject); |
| while ((parent != null) && !(parent is TParent)) |
| { |
| parent = VisualTreeHelper.GetParent(parent); |
| } |
| return (TParent)parent; |
| } |
| } |
| } |
We will also consider exposing the chart parent in a more straightforward manner for the future releases of the control.
Regards,
Manuel
the Telerik team
Check out Telerik Trainer , the state of the art learning tool for Telerik products.