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How to activate the trackball on touch?

Platform: Xamarin.Forms |
Control: SfChart |
Published Date: March 22, 2018 |
Last Revised Date: March 23, 2018

 

Trackball will be activated once you long-press anywhere on the chart area, but this behavior can be overridable by activating the trackball manually using Show and Hide method of ChartTrackballBehavior.

 

In the following CustomeTrackballBehavior class, the trackball is activated in OnTouchMove method and deactivated in OnTouchUp method of ChartTrackballBehavior.

 

XAML

 

C#

 

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