---
title: lineNumber
framework: foundation
role: symbol
role_heading: Instance Property
path: foundation/xmlparser/linenumber
---

# lineNumber

The line number of the XML document being processed by the parser.

## Declaration

```swift
var lineNumber: Int { get }
```

## Discussion

Discussion You may access this property once a parsing operation has begun or after an error occurs.

## See Also

### Obtaining Parser State

- [columnNumber](foundation/xmlparser/columnnumber.md)
- [publicID](foundation/xmlparser/publicid.md)
- [systemID](foundation/xmlparser/systemid.md)