Last Updated: 25 Oct 2019 08:34 by ADMIN
Created on: 24 Oct 2019 12:02
Category: UI for Xamarin
Type: Feature Request
Scroll Event for RadListView

The "Scrolled" event is such a essential feature.

For example, i made a floating searchbar with transparent frame, and a RadListView with HeaderTemplate that is longer than a screen of the device, i would like to detect whether the listview has scrolled for more than 10px vertically. If yes, set the background of the frame of the searchbar to my desired color.Xamarin.Forms, collectionview, listview, and scrollview has Scrolled event, but why RadListView does not? Using ItemAppearing event is just avoiding the problem instead of solving it. It will not be able to fulfill the criteria as the any item does not even enter the screen yet before the required task need to be done.

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1 comment
Posted on: 25 Oct 2019 08:34

Hello Yi,

Thank you for explaining the scenario you have in details.  I agree that providing a scrolled event and scrolling API would be a valuable addition to the RadListView feature-set.  We have this logged in our public portal where we're tracking the demand. Please check the item at the link below:

ListView: Introduce API for providing scroll info when the control's scrollview position is changed

I am going to decline this item as we'd rather have all the comments/likes in one place. Please follow the item referenced above in order to get notified on status changes.

I am sorry for any inconvenience caused.

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