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Leadtools.Windows.Annotations Namespace > Classes > AnnRulerObject > Methods > OnMeasurementUnitChanged Method
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OnMeasurementUnitChanged Method (AnnRulerObject)
Summary
Occurs when the value MeasurementUnit property changes.
Syntax
protected virtual void OnMeasurementUnitChanged(RoutedPropertyChangedEventArgs<AnnUnit> e)
Protected Overridable Sub OnMeasurementUnitChanged( _ByVal e As RoutedPropertyChangedEventArgs(Of AnnUnit) _)
protected:virtual void OnMeasurementUnitChanged(RoutedPropertyChangedEventArgs<AnnUnit>^ e)
Parameters
e
A RoutedPropertyChangedEventArgs that contains the event data.
Remarks
Raising an event invokes the event handler through a delegate.
The OnMeasurementUnitChanged method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.
Notes to Inheritors: When overriding OnMeasurementUnitChanged in a derived class, be sure to call the base class's OnMeasurementUnitChanged method so that registered delegates receive the event.
Requirements
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