Currently, RadChartView doesn't support the ChartToolTipBehavior for series that are using BitmapRenderOptions, Direct2DRenderOptions, or SkiaRenderOptions. The tooltip doesn't display.
Currently the MouseWheel event used to zoom is not handled which means that the event will bubble to the parent elements which can lead to scrolling issues. Add an option to handle the MouseWheel event when the chart zooming is enabled.
To get the desired result, you can handle the MouseWheel event of the chart manually.
private void RadCartesianChart_MouseWheel(object sender, MouseWheelEventArgs e)
{
e.Handled = true;
}
In some cases the CartesianGridLineAnnotation can be offset with a single pixel from the expected position on the axis. For example, if the annotation is positioned at value 0 and there is a tick, a offset between the tick and the annotation can be observed.
To work this around, you can manually offset the annotation by setting its Top Margin.
<telerik:CartesianGridLineAnnotation Margin="0 1 0 0"/>
The problem arises when we have many graphs on one window and when we scroll to the bottom then to the middle of the window and then resize the width of the window, not all graphics dynamically resize, some harden to the previous size.
I am attaching a project in which you can reproduce the problem.
And I am attaching a video where the problem is clearly demonstrated.
Please solve the problem as soon as possible for our product it is critical!
You can easily implement it by subscribing to the MouseLeftButtonDown event of the chart series and change the series' Stroke or Fill property.
Currently, this is not supported if you use the sampling feature of the chart (ChartDataSource). ChartDataSource can't work with collections with primitive types. Add support for this.
When a chart have long labels on the X axis (like date and time) the zoom is not accurate on the horizontal extents with both mouse wheel and drag area.
The reason is probably that the screen coordinates of the selected area are not mapped correctly on the X axis. The mapping works fine for tooltip.
You can verify this behavior in the attached Solution. In the images you can see the selected area (01), that the zoomed area is a region with no points (02) and the actual position of the points.
Add a mechanism like a method override or a property that can alter this behavior. In this case, if the data item of the generated data point contains a null value, the visual element should be dropped (missing) as in the standard chart series.