# ViewData (System API)
ViewData defines the view data used for auto-fill.
> **NOTE**
>
> The initial APIs of this module are supported since API version 11. Newly added APIs will be marked with a superscript to indicate their earliest API version.
> The APIs provided by this module are system APIs.
> The APIs of this module can be used only in the stage model.
## Properties
**System capability**: SystemCapability.Ability.AbilityRuntime.AbilityCore
| Name | Type | Mandatory| Description |
| ----------- | -------------------- | ---- | ------------------------------------------------------------ |
| bundleName | string | Yes | Bundle name. |
| moduleName | string | Yes | Module name. |
| abilityName | string | Yes | Ability name. |
| pageUrl | string | Yes | URL of the page. |
| pageNodeInfos | Array<[PageNodeInfo](js-apis-inner-application-pageNodeInfo-sys.md)> | Yes | Page node information. |
| pageRect12+ | [AutoFillRect](js-apis-inner-application-autoFillRect-sys.md) | Yes | Coordinates, width, and height of the page. |
| isUserSelected12+ | boolean | Yes| Whether the content is selected by the user.|
| isOtherAccount12+ | boolean | Yes| Whether to display other account information saved in the password box for the user to select.|