# PropertyChangedCallback Function

> Callback function for events related to a property change. (see also TXTextControl.addEventListener function)

- **Product:** DS Server
- **Section:** Reference
- **Kind:** Function
- **Introduced:** 28.0
- **Path:** DS Server > Reference > JavaScript API > PropertyChangedCallback Function
- **213 words**
- **Web URL:** https://docs.textcontrol.com/ds-server/reference/javascript/propertychangedcallback/
- **LLMs URL:** https://docs.textcontrol.com/ds-server/reference/javascript/propertychangedcallback/llms.txt
- **LLMs-Full URL:** https://docs.textcontrol.com/ds-server/reference/javascript/propertychangedcallback/llms-full.txt

---

### Description

Callback function for events related to a property change. (see also [TXTextControl.addEventListener function](https://docs.textcontrol.com/ds-server/reference/javascript/txtextcontrol/addeventlistener-method/llms-full.txt))

### Syntax

```javascript
function(<PropertyChangedEventArgs> args)
```

### Examples

The following example demonstrates `PropertyChangedCallback` in a practical document-editing workflow. Callback function for events related to a property change. (see also TXTextControl.addEventListener function).

```javascript
function propertyChangedCallback(args) {
    console.log("args:", args);
}

TXTextControl.inputFormat.addEventListener("textControlLoaded", propertyChangedCallback);
```

---

## Nearby

- **Previous:** [Javascript: Point.y Property](https://docs.textcontrol.com/ds-server/reference/javascript/point/y-property/llms-full.txt)
- **Next:** [PropertyChangedEventArgs Object](https://docs.textcontrol.com/ds-server/reference/javascript/propertychangedeventargs/llms-full.txt)