# RequestNumberFormatCallback Function

> Callback function for requesting a NumberFormat value.

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

---

### Description

Callback function for requesting a [NumberFormat](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/txtextcontrol/numberformat-enumeration/llms-full.txt) value.

### Syntax

```javascript
function(<NumberFormat> result)
```

### Examples

The following example demonstrates `RequestNumberFormatCallback` in a practical document-editing workflow. Callback function for requesting a NumberFormat value.

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

function requestNumberFormatCallback(result) {
    console.log("result:", result);
}

TXTextControl.footnotes.getNumberFormat(requestNumberFormatCallback, onTxError);
```

---

## Nearby

- **Previous:** [RequestNumberCallback Function](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/requestnumbercallback/llms-full.txt)
- **Next:** [RequestNumberFormatsCallback Function](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/requestnumberformatscallback/llms-full.txt)