# ArgumentEventArgs class

Namespace: [Grasshopper2.UI.Graphing](https://developer.rhino3d.com/api/gh2/namespace/grasshopper2.ui.graphing.md) · Assembly: [Grasshopper2](https://developer.rhino3d.com/api/gh2/assembly/grasshopper2.md)

```cs
public sealed class ArgumentEventArgs : EventArgs
```

Event arguments used in parameter modifications.

## Constructors

- [ArgumentEventArgs](https://developer.rhino3d.com/api/gh2/type/grasshopper2.ui.graphing.argumenteventargs/ctor.md): Create new parameter event arguments.

## Properties

- [Arguments](https://developer.rhino3d.com/api/gh2/type/grasshopper2.ui.graphing.argumenteventargs/arguments.md): Gets the arguments affected by this event.
- [Collection](https://developer.rhino3d.com/api/gh2/type/grasshopper2.ui.graphing.argumenteventargs/collection.md): Collection pertaining to this event.