Hi,

This worked thanks. 

Hi Stuart,
You need to change the BeginDragMouseCommand to:
= new NMouseCommand(MouseAction.Wheel, MouseButton.None, 0);
We tested with:
NDataZoomTool dataZoomTool = new NDataZoomTool();
dataZoomTool.WheelZoomAtMouse = true;
dataZoomTool.WheelZoomFactor = 0.2;
dataZoomTool.BeginDragMouseCommand = new NMouseCommand(MouseAction.Wheel, MouseButton.None, 0);
dataZoomTool.EndDragMouseCommand = new NMouseCommand(MouseAction.None, MouseButton.None, 0);
nChartControl1.Controller.Tools.Add(dataZoomTool);
and the control was working properly. The change probably occurred when we implemented modifier keys to the mouse commands. Let us know if you meet any problems.

Best Regards,
Nevron Support Team

Hi,

Following an upgrade 18.7.18.12 to 18.8.17.1 mouse wheel zoom has stopped working.

This is how we create the NDataZoomTool:

    var dataZoomTool = new NDataZoomTool();
    dataZoomTool.WheelZoomAtMouse = true;
    dataZoomTool.WheelZoomFactor = 0.2;
    dataZoomTool.BeginDragMouseCommand = new NMouseCommand(MouseAction.Wheel, MouseButton.Middle, 0);
    dataZoomTool.EndDragMouseCommand = new NMouseCommand(MouseAction.None, MouseButton.None, 0);
    addToolToNevronControl(dataZoomTool);