# Javascript: InputFormat.setStructureLevel Method

> Sets the structure level of all selected paragraphs. The level can be between 0 and 10. A level of 0 indicates that the paragraph belongs to the body of the document.

- **Product:** DS Server
- **Section:** Reference
- **Kind:** Method
- **Introduced:** 29.0
- **Path:** DS Server > Reference > JavaScript API > Javascript: InputFormat.setStructureLevel Method
- **371 words**
- **Web URL:** https://docs.textcontrol.com/ds-server/reference/javascript/inputformat/setstructurelevel-method/
- **LLMs URL:** https://docs.textcontrol.com/ds-server/reference/javascript/inputformat/setstructurelevel-method/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/ds-server/reference/javascript/inputformat/setstructurelevel-method/llms-full.txt

---

### Description

Sets the structure level of all selected paragraphs. The level can be between 0 and 10. A level of 0 indicates that the paragraph belongs to the body of the document.

### Syntax

```javascript
<void> InputFormat.setStructureLevel(<number> value, [<EmptyRequestCallback> callback], [<ErrorCallback> errorCallback])
```

### Parameters

| Parameter | Description |
|---|---|
| value | The property value. |
| callback | Optional. Is called when the operation completed. |
| errorCallback | Optional. Is called when the operation failed with an error. |

### Examples

The following example demonstrates `InputFormat.setStructureLevel` in a practical document-editing workflow. It sets the structure level of all selected paragraphs. The level can be between 0 and 10. A level of 0 indicates that the paragraph belongs to the body of the document.

```javascript
function onTxError(error) {
    console.error("TX Text Control error:", error.msg);
    error.handled = true;
}

TXTextControl.inputFormat.setStructureLevel(
    1,
    function() {
        console.log("set structure level completed.");
    },
    onTxError
);
```

---

## Nearby

- **Previous:** [Javascript: InputFormat.setStructuredListFormat Method](https://docs.textcontrol.com/ds-server/reference/javascript/inputformat/setstructuredlistformat-method/llms-full.txt)
- **Next:** [Javascript: InputFormat.setStyleName Method](https://docs.textcontrol.com/ds-server/reference/javascript/inputformat/setstylename-method/llms-full.txt)