# FormBindingData

> ![icon-note.gif](public_sys-resources/icon-note.gif) **NOTE**
> The initial APIs of this module are supported since API version 8. Newly added APIs will be marked with a superscript to indicate their earliest API version.

## Modules to Import

```
import formBindingData from '@ohos.application.formBindingData';
```

## Required Permissions

None

## formBindingData.createFormBindingData

createFormBindingData(obj?: Object | string): FormBindingData

Creates a **FormBindingData** object.

**System capability**: SystemCapability.Ability.Form

**Parameters**

| Name| Type          | Mandatory| Description                                                        |
| ------ | -------------- | ---- | ------------------------------------------------------------ |
| obj    | Object or string| No  | Data to be displayed on the JS service widget. The value can be an object containing multiple key-value pairs or a string in JSON format. The image data is identified by "formImages", and the content is multiple key-value pairs, each of which consists of an image identifier and image file descriptor. The final format is {"formImages": {"key1": fd1, "key2": fd2}}.|


**Return value**

| Type                               | Description                                   |
| ----------------------------------- | --------------------------------------- |
| [FormBindingData](#formbindingdata) | **FormBindingData** object created based on the passed data.|


**Example**

  ```js
  let fd = fileio.openSync(path);
  let obj = {
      "temperature": "21°",
      "formImages": {"image": fd}
  };
  let formBindingDataObj = formBindingData.createFormBindingData(obj);
  ```

## Attributes

Describes a **FormBindingData** object.

**System capability**: SystemCapability.Ability.Form

| Name| Readable| Writable| Type| Mandatory| Description|
| -------- | -------- | -------- | -------- | -------- | -------- |
| data | Yes| No| Object | Yes| Data to be displayed on the JS service widget. The value can be an object containing multiple key-value pairs or a string in JSON format.|