I used the datamanagement forms module to create an image upload control. Is there a way to extend (data management forms) event for saving data in the database and create your own custom functionality?
Data Management forms are always saved to the database. If you want to extend the functionality, you can create a FormSaveProvider that will be invoked after data has been saved in the database. I've attached the example I used for demonstration on the online Tech Review. You'll find the presentation here: http://engage.dynamicweb-cms.com/Video-Guides-452.aspx?Action=1&NewsId=1880&PID=2765&comment=true
Remember that your FormSaveProvider needs to be attached to the process by checking its checkbox on the paragraph settings of the Data Management Forms module.