> For the complete documentation index, see [llms.txt](https://kinematicsoup.gitbook.io/reactor/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://kinematicsoup.gitbook.io/reactor/api-reference/ks.reactor.client/ks.reactor.client.ksdelegates/ks.reactor.client.ksdelegates.propertychangehandler.md).

# Delegate ksDelegates.PropertyChangeHandler

Namespace: [KS.Reactor.Client](/reactor/api-reference/ks.reactor.client.md)\
Assembly: KSUnity.dll

Property change event handler.

```csharp
public delegate void ksDelegates.PropertyChangeHandler(ksMultiType oldValue, ksMultiType newValue)
```

#### Parameters

`oldValue` [ksMultiType](/reactor/api-reference/ks.reactor/ks.reactor.ksmultitype.md)

oldValue of property.

`newValue` [ksMultiType](/reactor/api-reference/ks.reactor/ks.reactor.ksmultitype.md)

newValue of property.