Alert user when there is unsaved data in the master detail dialog page while clicking on back button.

[vmrosariojoe]

Hi Team.
I have a master detail dialog and detail records are only in memory until the master dialog save button is clicked.
If the user accidently clicks on the back button then all the data which are in the memory are removed.
How to alert the user when the user leaves the page or clicks on back button that there are some unsaved record in the page?

[erehtolleh]

There is exact sample here.

[luongnv6]

https://github.com/serenity-is/Serene/blob/master/Serene/Serene.Core/Modules/Northwind/Customer/CustomerDialog.ts
this is code demo for you

[vmrosariojoe]

Thanks a lot. much appreciated.