This sample demonstrates the default functionalities of a progress button. Clicking that button will display a spinner and a progress indicator.
The progress button visualizes the progression of an operation to indicates the user that a process is happening in the background. The progress can be shown with graphics accompanied by a textual representation.
                        In this sample, the progress button contains the content, spinner, progress indicator, and a list of related features that
                        can be achieved using
                    
                            content,
                    
                        
                        
                            cssClass,
                    
                        and
                    
                            enableProgress
                    
                        property.
                    
More information about progress button can be found in this documentation section.