# AlarmZone Collection Editor
## Content
The **Alarm Zones Collection Editor** is used for adding or modifying alarms to the plot area at design time. For more information on Alarm Zones, see [Alarm Zones](/componentone/docs/win/online-chart2d/chartareaandplotarea/plotarea/alarmzones).
### To Access the AlarmZone Collection Editor
1. Right-click the **C1Chart** control and select Properties from its context menu.
2. In the Properties window, expand the **ChartArea** node in the **Properties** window, then expand the **PlotArea** node, and click the ellipsis next to the **AlarmZones** property.
The **AlarmZone Collection Editor** appears.
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Properties available in the AlarmZones Collection Editor
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The following properties are available for the user in the **AlarmZone Collection Editor** at design time or they can be used in the AlarmZone class at run time:
| **Members** | **Description** |
| --- | --- |
| [BackColor](/componentone/api/win/online-chart2d/dotnet-framework-api/C1.Win.C1Chart.4.8/C1.Win.C1Chart.AlarmZone.BackColor.html) | Gets or sets the background color of the AlarmZone. Inherits from PlotArea. |
| [FarExtent](/componentone/api/win/online-chart2d/dotnet-framework-api/C1.Win.C1Chart.4.8/C1.Win.C1Chart.AlarmZone.FarExtent.html) | Gets or sets the far extent or the AlarmZone in the X-axis data coordinates. |
| [ForeColor](/componentone/api/win/online-chart2d/dotnet-framework-api/C1.Win.C1Chart.4.8/C1.Win.C1Chart.AlarmZone.ForeColor.html) | Gets or sets the foreground color of the AlarmZone. Inherits from the PlotArea. |
| [GroupIndex](/componentone/api/win/online-chart2d/dotnet-framework-api/C1.Win.C1Chart.4.8/C1.Win.C1Chart.AlarmZone.GroupIndex.html) | Gets or sets the index of the data group of the AlarmZone. |
| [LowerExtent](/componentone/api/win/online-chart2d/dotnet-framework-api/C1.Win.C1Chart.4.8/C1.Win.C1Chart.AlarmZone.LowerExtent.html) | Gets or set the lower extent of the AlarmZone in the Y-axis data coordinates. |
| [MinHeight](/componentone/api/win/online-chart2d/dotnet-framework-api/C1.Win.C1Chart.4.8/C1.Win.C1Chart.AlarmZone.MinHeight.html) | Gets or sets the AlarmZone minimum pixel height. |
| [MinWidth](/componentone/api/win/online-chart2d/dotnet-framework-api/C1.Win.C1Chart.4.8/C1.Win.C1Chart.AlarmZone.MinWidth.html) | Gets or sets the AlarmZone minimum pixel width. |
| [Name](/componentone/api/win/online-chart2d/dotnet-framework-api/C1.Win.C1Chart.4.8/C1.Win.C1Chart.AlarmZone.Name.html) | Gets or sets the name of the AlarmZone. The name can be used for indexing or simple identification. |
| [NearExtent](/componentone/api/win/online-chart2d/dotnet-framework-api/C1.Win.C1Chart.4.8/C1.Win.C1Chart.AlarmZone.NearExtent.html) | Gets or sets the near extent of the AlarmZone in the X-axis data coordinates. |
| [PatternStyle](/componentone/api/win/online-chart2d/dotnet-framework-api/C1.Win.C1Chart.4.8/C1.Win.C1Chart.AlarmZone.PatternStyle.html) | Gets or sets the pattern style to be used if PatternVisible is True. The PatternStyle is penned in the AlarmZone ForeColor. |
| [PatternVisible](/componentone/api/win/online-chart2d/dotnet-framework-api/C1.Win.C1Chart.4.8/C1.Win.C1Chart.AlarmZone.PatternVisible.html) | Gets or sets whether the specified PatternStyle should be used to brush the background of the AlarmZone |
| [Shape](/componentone/api/win/online-chart2d/dotnet-framework-api/C1.Win.C1Chart.4.8/C1.Win.C1Chart.AlarmZone.Shape.html) | Gets or sets the shape of the AlarmZone. |
| [UpperExtent](/componentone/api/win/online-chart2d/dotnet-framework-api/C1.Win.C1Chart.4.8/C1.Win.C1Chart.AlarmZone.UpperExtent.html) | Gets or sets the upper extent of the AlarmZone in the Y-axis data coordinates. |
| [Visible](/componentone/api/win/online-chart2d/dotnet-framework-api/C1.Win.C1Chart.4.8/C1.Win.C1Chart.AlarmZone.Visible.html) | Gets or sets the visibility of the AlarmZone. |
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## See Also
[Axis Collection Editor](/componentone/docs/win/online-chart2d/designtimesupport/c1chartcollectionedi/axiscollectionedi)