Workflow:
1) Client clicks on RadWizard Finish button
2) JavaScript code in either OnClientButtonClicking or OnClientButtonClicked performs some asynchronous background processing => file upload
3) RadWizard waits for JavaScript code to complete its operation (callback or something else – we are waiting in the OnClientButtonClicking or/and OnClientButtonClicked event handlers)
4) After successful operation RadWizard continues with the postback => OnFinishButtonClick server side event is called and data is saved in the database
Is it possible to achieve above-described workflow (or something similar) in the JavaScript and RadWizard ASP.NET AJAX control?