Request for clarification on value taking from owner and ability to unset a local value

When is the value retrieved from the parent? On construction? On property access?

Is it possible to "unset" the ambient property so that it will no longer use a (temporary) local value but the parents again? (e.g. for temporarily setting Form.Cursor to WaitCursor and then returning to using the parents)

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* ID: a19792a8-cf3a-ccb9-e346-6d8db28de034
* Version Independent ID: 26385aee-80b5-9df5-ba0e-6a9c0b679d17
* Content: [AmbientProperties Class (System.Windows.Forms)](https://docs.microsoft.com/en-us/dotnet/api/system.windows.forms.ambientproperties?view=netframework-4.7.2)
* Content Source: [xml/System.Windows.Forms/AmbientProperties.xml](https://github.com/dotnet/dotnet-api-docs/blob/master/xml/System.Windows.Forms/AmbientProperties.xml)
* Product: **.net**
* GitHub Login: @dotnet-bot
* Microsoft Alias: **dotnet-bot**

Inizia con xml/System.Windows.Forms/AmbientProperties.xml e il riferimento API di AmbientProperties collegato. Verifica quando i valori vengono recuperati dall'elemento padre e se è possibile annullare l'impostazione di un valore ambient locale, quindi aggiorna la documentazione in modo che entrambe le domande abbiano risposte esplicite.

Scritto dal modello di indicizzazione a partire dal testo della issue.