# Book Zones

## Content



The [C1Book](/componentone/api/wpf/online-extended/dotnet-framework-api/C1.WPF.Extended.4.6.2/C1.WPF.Extended.C1Book.html) control includes several zones. These zones let you customize what happens when users interact with various sections of the control. You can use the [C1Book.CurrentZone](/componentone/api/wpf/online-extended/dotnet-framework-api/C1.WPF.Extended.4.6.2/C1.WPF.Extended.C1Book.CurrentZone.html) property to get the user's current zone and you can use the [C1Book.CurrentZoneChanged](/componentone/api/wpf/online-extended/dotnet-framework-api/C1.WPF.Extended.4.6.2/C1.WPF.Extended.C1Book.CurrentZoneChanged.html) event to customize when happens when users move to a different zone.

There are six separate zones in the **C1Book** control. For an illustration of each zone, note the mouse's position in each of the images in the following table:

|   **Zone**   |   **Description**   |   **Example**   |
| --- | --- | --- |
|   Out   |   Specifies the zone outside the borders of the book.   |   ![](https://cdn.mescius.io/document-site-files/images/babf1807-69aa-4d8a-96b6-d6c6d9325368/book_x0020_zones_files/image001.png)   |
|   BottomLeft   |   Specifies bottom left fold zone.   |   ![](https://cdn.mescius.io/document-site-files/images/babf1807-69aa-4d8a-96b6-d6c6d9325368/book_x0020_zones_files/image002.png)   |
|   TopLeft   |   Specifies top left fold zone.   |   ![](https://cdn.mescius.io/document-site-files/images/babf1807-69aa-4d8a-96b6-d6c6d9325368/book_x0020_zones_files/image003.png)   |
|   Center   |   Specifies the center of the book (no fold zone).   |   ![](https://cdn.mescius.io/document-site-files/images/babf1807-69aa-4d8a-96b6-d6c6d9325368/book_x0020_zones_files/image004.png)   |
|   TopRight   |   Specifies top right fold zone.   |   ![](https://cdn.mescius.io/document-site-files/images/babf1807-69aa-4d8a-96b6-d6c6d9325368/book_x0020_zones_files/image005.png)   |
|   BottomRight   |   Specifies bottom left fold zone.   |   ![](https://cdn.mescius.io/document-site-files/images/babf1807-69aa-4d8a-96b6-d6c6d9325368/book_x0020_zones_files/image006.png)   |