Quick Start Tutorial: Creating Universal Apps Via Xamarin: DisplayAlert And DisplayActionSheet - Part Eight

First two arguments are the same as seen in the last section, but the last two arguments have changed.

String (“Like user accepts this message”) and the last argument cancels the string (confirmation is not accepted).

Return of this method is a task<bool> (true or false) whatever string is passed, in the third argument the user accepts this message, the function (third argument) returns as true, the fourth arguments are returned as false.

Ex: Xaml Page creation


Button Click event


Output


 
DisplayActionSheet

Collection of the items displayed to the user, based on the items selected by the end user.



Collection of the items are passed as a string array in the end of the arguments.

Destruction Parameter

If you want show the “Delete” option to the user, use this argument, otherwise pass as NULL, as this argument is not displayed to the user.

Title and buttons must be passed as far as the arguments are concerned while cancel and destruction may or may not be null.

Ex: Xaml Page creation


Code behind page


Android output


 
It is passed as a third argument as destruction.


Android: Display end of the sheet, UWP: First is the display: