SFListVIew Change span count based on screen size

[Luca]

Hi,

I'm following your doc here https://help.syncfusion.com/maui/listview/layouts#change-span-count-based-on-screen-size

but Application.Current.MainPage.Width return -1

do you know why?

thans

[Kamala Kannan Sakthivel]

Hi Luca,
We have checked the reported scenario at our end from the given UG link. When setting thee AppShell page as MainPage , the Application.Current.MainPage.Width getting  NaN value. To resolve the scenario, please use anyone of the below workarounds,
 

Or

Simply by setting the MainPage directly in App.xaml.cs. As mentioned below
 

If you still facing any issue, Please let us know if you have any concern.

Regards,

Kamala Kannan S

[Luca]

thanks it's working!

I'm using protected override void OnSizeAllocated, is it ok or is better your property changed event

[Kamala Kannan Sakthivel]

Hi Luca,

Yes, you can use OnSizeAllocated instead of PropertyChanged, as OnSizeAllocated is called whenever a size change occurs.

Please let us know if you have any concern.