# RequestHeaderFooterTypeCallback Function

> Callback function for requesting a type of header or footer.

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

---

### Description

Callback function for requesting a [type](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/txtextcontrol/headerfootertype-enumeration/llms-full.txt) of header or footer.

### Syntax

```javascript
function(<HeaderFooterType> headerFooterType)
```

### Examples

The following example demonstrates `RequestHeaderFooterTypeCallback` in a practical document-editing workflow. Callback function for requesting a type of header or footer.

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

function requestHeaderFooterTypeCallback(headerFooterType) {
    console.log("header footer type:", headerFooterType);
}

function useRequestHeaderFooterTypeCallback(headerFooter) {
    headerFooter.getType(requestHeaderFooterTypeCallback, onTxError);
}
```

---

## Nearby

- **Previous:** [RequestHeaderFooterCallback Function](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/requestheaderfootercallback/llms-full.txt)
- **Next:** [RequestHighlightModeCallback Function](https://docs.textcontrol.com/tx-text-control-dotnet-server/reference/javascript/requesthighlightmodecallback/llms-full.txt)