ImageGear .NET v25.0 - Updated
Implementing Annotations in an Image Data Provider
User Guide > How to Work with... > Common Operations > Viewing > Viewing Using ASP.NET > [Legacy] ASP.NET Web.Config Editor Application > Use the Web Configuration Categories Screen > Configuring and Working with Data Providers > Image Data Providers > Implementing Annotations in an Image Data Provider

Annotations on a document could potentially be modified and sent to the server by multiple users at any given time. When saving annotations, ImageGear will first call the provider to read the current annotations, merge in the changes, and then call the provider to save the annotations. To protect the integrity of annotation data during this operation, ImageGear uses a .NET framework object, System.Transactions.TransactionScope.

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