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10. LINQ to XML > Annotations

Annotations

You can attach custom data to any XObject with an annotation. Annotations are intended for your own private use and are treated as black boxes by X-DOM. If you’ve ever used the Tag property on a Windows Forms or WPF control, you’ll be familiar with the concept—the difference is that you have multiple annotations, and your annotations can be privately scoped. You can create an annotation that other types cannot even see—let alone overwrite.

The following methods on XObject add and remove annotations:

public void AddAnnotation (object annotation)
public void RemoveAnnotations<T>()     where T : class

The following methods retrieve annotations:

public T Annotation<T>()               where T : class
public IEnumerable<T> Annotations<T>() where T : class

  

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