I tested out the scenario you described in the Custom IPagedCollectionView
demo from our SDK Samples Browser
but the PageIndexChanged
event is fired as expected upon clicking the "navigate to last
page" button at my end. I'm attaching the sample project I've used in the process for your reference.
Could you please have a look at it and let me know how it differs from the setup you have at your end? If possible, please modify the project so that it demonstrates the issue you observe or send over a sample project of your own so that I can further assist you.
Thank you in advance for your cooperation on the matter.