# ParameterEventArgs class

Namespace: [Grasshopper2.Components](https://developer.rhino3d.com/api/gh2/namespace/grasshopper2.components.md) · Assembly: [Grasshopper2](https://developer.rhino3d.com/api/gh2/assembly/grasshopper2.md)

```cs
public class ParameterEventArgs : EventArgs
```

Event arguments used in individual Parameter events.

## Constructors

- [ParameterEventArgs](https://developer.rhino3d.com/api/gh2/type/grasshopper2.components.parametereventargs/ctor.md): Create a new ParameterEventArgs instance.

## Properties

- [Component](https://developer.rhino3d.com/api/gh2/type/grasshopper2.components.parametereventargs/component.md): Gets the component associated with this event.
- [Index](https://developer.rhino3d.com/api/gh2/type/grasshopper2.components.parametereventargs/index.md): Gets the index of the parameter.
- [Parameter](https://developer.rhino3d.com/api/gh2/type/grasshopper2.components.parametereventargs/parameter.md): Gets the parameter associated with this event.
- [Side](https://developer.rhino3d.com/api/gh2/type/grasshopper2.components.parametereventargs/side.md): Gets the side to which the parameter belongs.