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该版本增加了日期时间轴的图表功能，当 XValue 的类型为 DateTime 时，Visifire 自动将 X轴变成日期轴。同时还修正了下面几个bug：
- ToolTip movement was not smooth if “\n” was used in ToolTipText of any chart element.
- Chart couldn’t have been included in DataTemplate of a control, due to NameScope specification.
- Events for DataSeries and DataPoints in multi-series chart fired twice when attached.
- Visifire2.js: preLoad & loaded events were not cleared (detached) even after the chart was rendered.
需要注意的是 Visifire 2.2.0 Beta1 并未公开发布。