# ProjectionChangedEventArgs class

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

```cs
public class ProjectionChangedEventArgs : EventArgs
```

Class used in the IControl.ProjectionChanged event.

## Constructors

- [ProjectionChangedEventArgs](https://developer.rhino3d.com/api/gh2/type/grasshopper2.ui.flex.projectionchangedeventargs/ctor.md): Create a new instance of the ProjectionChangedeventArgs class.

## Properties

- [NewProjection](https://developer.rhino3d.com/api/gh2/type/grasshopper2.ui.flex.projectionchangedeventargs/newprojection.md): Gets the new projection.
- [OldProjection](https://developer.rhino3d.com/api/gh2/type/grasshopper2.ui.flex.projectionchangedeventargs/oldprojection.md): Gets the old projection.