DialogReason enum 
Indicates why a dialog method is being called.
Remarks
Use a dialog context to control the dialogs in a dialog set. The dialog context will pass a reference to itself to the dialog method it calls. It also passes in the reason why the specific method is being called.
See also
Fields
| beginCalled | The dialog is being started from DialogContext.beginDialog or DialogContext.replaceDialog. | 
| cancelCalled | The dialog is being cancelled from DialogContext.cancelAllDialogs. | 
| continueCalled | The dialog is being continued from DialogContext.continueDialog. | 
| endCalled | The dialog is being ended from DialogContext.endDialog. | 
| nextCalled | A step in a WaterfallDialog is being called because the previous step in the waterfall dialog called WaterfallStepContext.next. | 
| replaceCalled | The dialog is being ended from DialogContext.replaceDialog. |