Extending RadSpreadsheet Undo/Redo

[Ryan]

Hello,

I have an application where the user will drag object values from internal properties within the application into a Spreadsheet control. Think like a CAD package, the user would drag/drop something like circle's radius into a cell. These cells will automatically update as the application updates. I call these dynamic references DynamicDataFields.

The application maintains a collection of these DynamicDataFields. When the user drag/drops these fields from the application into a cell, that cell information is added to the collection.

It is a pretty simple solution and adding hooks for ActiveWorksheetEditor.Commands like Copy, Paste, Cut, Clear. RemoveCellsCommand, etc. - isn't too complicated. 

Basically, the application responds by either,

1. Adding DynamicDataFields to the collection, or
2. Removing DynamicDataFields to the collection. 
   

The biggest thing missing though, is how undo/redo get's handled. I am looking for ways to implement these two actions alongside the built-in undo redo system. Is this something that is possible? Where would I being looking? 

Or does anyone have any better ideas? 

[Martin Ivanov]

Hello Ryan,

The RadSpreadsheet works with the RadSpreadProcessing document model, where the undo/redo functionality is exposed via its history feature. Currently, there is no entry point to customize the original undo/redo functionality. To get the desired behavior, you will need to write custom logic for your actions.

Regards,
Martin Ivanov
Progress Telerik