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h8tow8
2290
invalidate causing day view to flicker
posted

hi,

I noticed that when after changing datasource by adding a new appointment or modifying existing one (time, location or title) and then calling Invalidate on a calendar view  the whole day view is erased first and then repainted. 

So say I have a view on top of the calendar that allows to modify one of the many appointment and display changes on a calendar view as they are applied.

Change start time - screen erased and all appointments are repainted

Change location - screen erased and all appointments are repainted

Change title - screen erased and all appointments are repainted

On top of it invalidate also triggers GetAppointmentsAsync that adds to a delay  especially if web service is used to get data.

Any suggestions on how to deal with this?

Thank you

Mark

  • 40030
    Offline posted

    Hi Mark, 

    Currently Invalidate is the only way to force a refresh, but as the method's documentation states, it forces a refresh of the theme and appointments. 

    We can probably add more granular control though. 

    For the time being though, perhaps having an "Apply/Save" button so that you're not triggering an update after every action. And only once the user has finished editing the appointment it would update. 

    -SteveZ