Hi,
Layout cycle errors occur generally when Layout of a control is updated in an infinite loop.
You Listview control contains so many items in it. I recommend you can
use virtualization
in your control. And implement
incremental loading in Listview.
Also, you can refer to the similar thread to get more information:
http://social.msdn.microsoft.com/Forums/en-US/75ad0911-9b75-4486-928f-53f90c268782/layout-cycle-detected-layout-could-not-complete?forum=w81prevwCsharp
Hope this can help you!
Best Wishes!
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