# Sandbox.UI.PanelRenderTreeBuilder.AddLocation

```csharp
void AddLocation(string filename, int line, int column)
```

Add the current source location. Used to record in which file the element was created.

### Parameters

- `filename` (`string`)
- `line` (`int`)
- `column` (`int`)

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