Pull-down-to-refresh listbox for windows phone

4
votes

I'am wondering if is a way to implement the pull-down-to-refresh function of a listbox. I have followed this link to implement this function. When I set the "ManipulationMode=Control", the listbox scroll performance is so poor that it is beyond my consideration.

I've also followed this link to detect the top-compression state, but when I scroll top, the top-compression event fired. What I need is that the refresh-event will not fire until the user pulled down the listbox, holding for a white, or pulled down the top of the listbox. What's more, HorizontalCompression and VerticalCompression are only supported in 0s7.1.

I'm finding a way to implement this function for days. I'll appreciate if soneone could give me some advice. Thanks.

1
windows-phone-7listboxpull-to-refresh
I've looked at both your links previously. Currently we use the end-of-scroll-states version and it works OK. Is supporting 7.0 really a big issue for you? - Stuart
There is very little point in supporting WP7.0 these days ... stackoverflow.com/questions/9215203/… - ColinE
@Stuart thanks your reply. It's okay without supporting the 7.0, but the VerticalCompression is too sensitive, when I scroll up to the top, the event fire, so it doesn't meet my need. Could you give more information on your method? thanks. - ellic
@ColinE :-) Because many windows phone devices in my region are with os7.0. Considering the compatibility, I want to support os7.0. But now it doesn't matter whether ths 7.0 is supported or not. I could use a refresh-button for os 7.0. So I would like to konw if there is a way to implement the pull-down-to-refresh effect. thanks. - ellic
@Stuart Hi,Stuart. I've keeping finding a way to implement the pull-down-to-refresh effect. Could you give me more tips on how to do it? Thanks. - ellic

1 Answers

0
votes

Just to clarify after my comments...

I personally only support Mango now - but I understand and respect that other regions may need to continue supporting pre-Mango devices.

A Mango-only implementation of http://blogs.msdn.com/b/slmperf/archive/2011/06/30/windows-phone-mango-change-listbox-how-to-detect-compression-end-of-scroll-states.aspx is available within the Windows Phone projects in https://github.com/slodge/MvvmCross/tree/master/Sample%20-%20Tutorial/Tutorial - that's what I currently use.

I would very much like to get the other version (http://blogs.msdn.com/b/jasongin/archive/2011/04/13/pull-down-to-refresh-a-wp7-listbox-or-scrollviewer.aspx) ported and working - just need to find some time on that one...