# AddEditableRegionCallback Function

> Callback function for functions which add an editable region.

- **Product:** TX Text Control .NET Server
- **Section:** Reference
- **Kind:** Function
- **Path:** TX Text Control .NET Server > Reference > JavaScript API > AddEditableRegionCallback Function
- **319 words**
- **Web URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/addeditableregioncallback/
- **LLMs URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/addeditableregioncallback/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/addeditableregioncallback/llms-full.txt

---

### Description

Callback function for functions which add an editable region.

### Syntax

```javascript
function(<EditableRegionCallbackData> response, <AddResult> addResult)
```

### Examples

The following example demonstrates `AddEditableRegionCallback` in a practical document-editing workflow. Callback function for functions which add an editable region.

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

function addEditableRegionCallback(response, addResult) {
    console.log("Callback values:", { response, addResult });
}

TXTextControl.textParts.getMainText(function(mainText) {
    const editableRegions = mainText.editableRegions;
    editableRegions.add("Tim Typer", 25, 1, 5, addEditableRegionCallback, onTxError);
}, onTxError);
```

---

## Nearby

- **Previous:** [AddCommentCallback Function](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/addcommentcallback/llms-full.txt)
- **Next:** [AddFootnoteCallback Function](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/addfootnotecallback/llms-full.txt)