# Sandbox.UI.DropEvent.IsDrop

```csharp
bool IsDrop { get; set; }
```

False while the drag is still hovering - look at the payload and set
[Sandbox.UI.DropEvent.Action](/api/Sandbox.UI.DropEvent/Action) to answer. True when it actually lands.

Declared in [Sandbox.UI.DropEvent](/api/Sandbox.UI.DropEvent).
Assembly: `Sandbox.Engine`.