The last control that we need to examine in this chapter is the
UpdateProgress control. This control enables you to display a progress indicator while an
UpdatePanel is updating its content.
During a normal postback, the browser displays its progress in downloading new content by spinning an icon or displaying a progress bar. During an asynchronous postback, on the other hand, there is no visual indication of progress. You can use the
UpdateProgress control to give the users some sense that something is happening during an asynchronous postback.
In the next chapter, we examine an alternative method of displaying
UpdatePanel progress. You learn how to use the
UpdatePanelAnimation control to display an ...