# Sandbox.Script.SourceSpan.SourceSpan

```csharp
SourceSpan(int Start, int Length)
```

A range in the original source, measured in UTF-16 code units.

### Parameters

- `Start` (`int`)
- `Length` (`int`)

Declared in [Sandbox.Script.SourceSpan](/api/Sandbox.Script.SourceSpan).
Assembly: `Sandbox.Engine`.