showTrackHighlightChanged = true;this.invalidateProperties();}public function get showTrackHighlight():Boolean{return this._showTrackHighlight;}}} showTrackHighlightChanged = true;this.invalidateP
阅读背景：
flex自定义spark-VSlider
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showTrackHighlightChanged = true;this.invalidateProperties();}public function get showTrackHighlight():Boolean{return this._showTrackHighlight;}}} showTrackHighlightChanged = true;this.invalidateP
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