Enabling Run-Time Interaction for 2D Charts

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The action for zooming, scaling, and translating is invoked by the specified mouse button with optional keyboard modifiers (Alt|Ctrl|Shift). The actions should be placed in the Actions collection. The following XAML markup below defines a set of actions.

XAML	Copy Code
<c1chart:C1Chart.Actions> <!-- use left mouse button to scroll through data --> <c1chart:TranslateAction MouseButton="Left" /> <!-- use ctrl+left mouse button to change scale --> <c1chart:ScaleAction MouseButton="Left" Modifiers="Ctrl"/> <!-- use shift+left mouse to zoom selected rectangular area--> <c1chart:ZoomAction MouseButton="Left" Modifiers="Shift" /> </c1chart:C1Chart.Actions>

XAML

Copy Code

<c1chart:C1Chart.Actions>
<!-- use left mouse button to scroll through data -->
<c1chart:TranslateAction MouseButton="Left" />
<!-- use ctrl+left mouse button to change scale -->
<c1chart:ScaleAction MouseButton="Left" Modifiers="Ctrl"/>
<!-- use shift+left mouse to zoom selected rectangular area-->
<c1chart:ZoomAction MouseButton="Left" Modifiers="Shift" />
</c1chart:C1Chart.Actions>

The actions are closely related with Axis properties (Min, Max, Scale, MinScale). When Axis.Scale=1 the translate action is not available along the axis. The MinScale sets limitation of zoom or scale that can be achieved during action.