SystemMonitor 类具有以下属性：
- 外观
- BackColor
- BackColorCtl
- BorderStyle
- ChartScroll
- 计数器
- DataPointCount
- DataSourceType
- DisplayType
- EnableDigitGrouping
- EnableToolTips
- 字体
- ForeColor
- GraphTitle
- GridColor
- 突出显示
- LogFileName
- LogFiles
- LogSourceStartTime
- LogSourceStopTime
- LogViewStart
- LogViewStop
- ManualUpdate
- MaximumScale
- MinimumScale
- MonitorDuplicateInstances
- ReadOnly
- ReportValueType
- ShowHorizontalGrid
- ShowLegend
- ShowScaleLabels
- ShowTimeAxisLabels
- ShowToolbar
- ShowValueBar
- ShowVerticalGrid
- SqlDsnName
- SqlLogSetName
- TimeBarColor
- UpdateInterval
- YAxisLabel