Power plateform
Power automate flow
Functions
Check date is null
if(equals(triggerBody()?['myDate'], null),'[myDate is null]', formatDateTime(triggerBody()?['myDate'], 'dd/MM/yyyy'))
Power apps
Display view on query string value
If ( !IsBlank(Param("taskDisplay")) && Param("taskDisplay")="true"; Navigate(DevTasksView;ScreenTransition.Cover) )
set variable value (separator in english is , in french ;)
Set(CurrentToShow; "loppement") ;; Set(CurrentButton; "DEV")