SfListview population too slow

5 Replies
2 Participants

Created by
DC Diogenis Christoforidis

Platform
Xamarin.Forms

Platform
Xamarin.Forms

Control
SfListView

Created On
Sep 7, 2021 01:12 PM UTC

Last Activity On
Sep 10, 2021 08:04 AM UTC

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I am populate about 100 hundred rows in SfListview. I also have enable nested scrolling in a Scrollview.

Also i have set ListViewCachingStrategy to ListViewCachingStrategy.

But it makes some seconds to populate my SfListview. Is there any technique which i can speed up my population performance? I will upload a demo for helping you understand better.

Attachment: App1_8473d0c3.rar

5 Replies

LN Lakshmi Natarajan Syncfusion Team September 8, 2021 12:15 PM UTC

Hi Diogenis,

Thank you for using Syncfusion products.

We have checked the reported query “SfListview population too slow” from our side. We would like to let you know that the loading delay occurs when IsScrollingEnabled is set to False. When IsScrollingEnabled is set to False, the ListView will load all of its items at once. We regret to inform you that as the number of items with IsScrollingEnabled increases, so will the time required to calculate the height of all of the items.

Also, you can refer to the following documentation to improve the ListView performance,

UG link: https://help.syncfusion.com/xamarin/listview/working-with-sflistview#improving-listview-performance

KB link: https://www.syncfusion.com/kb/11395/how-to-improve-performance-when-doing-bulk-changes-in-xamarin-forms-listview-sflistview

Please let us know if you need further assistance.

Regards,

Lakshmi Natarajan

DC Diogenis Christoforidis September 8, 2021 12:44 PM UTC

Thank you very much. I already tried it but i didn't saw any big performance difference. Could you please give me an example according to my uploaded project?

LN Lakshmi Natarajan Syncfusion Team September 9, 2021 12:36 PM UTC

Hi Diogenis,

Sorry for the inconvenience caused.

As we have mentioned in our previous update, when IsScrollingEnabled is set to False, the ListView will load all of its items at once. Also, the number of items with IsScrollingEnabled increases, so will the time required to calculate the height of all of the items. We have prepared a sample using binding which slightly improves the loading time and attached in the following link.

Sample: https://www.syncfusion.com/downloads/support/forum/168664/ze/ListViewXamarin-1397709437

Please let us know if you need further assistance.

Regards,

Lakshmi Natarajan

DC Diogenis Christoforidis replied to Lakshmi Natarajan September 10, 2021 07:10 AM UTC

Thank you very much Lakshmi Natarajan !!!!