Performance, feature request

2 posts, 0 answers
  1. Grigory
    Grigory avatar
    3 posts
    Member since:
    Oct 2011

    Posted 28 Oct 2011 Link to this post

    Hi guys,

    1) Found issue with fill rate in listpicker in fullscreen mode with default template(page where LP control lies has nontransparent background).  Fill Rate is ~3.0 which is too much for such simple render. It just draws numbers from 1 to 1000 in my case and to my mind the FR should be  0.5-1(not more). This is definitely an issue, and MS perf guidelines say the same about FR > 2-2.5

    I suppose picker template has many layers with non transparent backgrounds which causes this issue. I think that for complex templates there will be serious performance issues.

    2) Would be cool your list picker support templating for background in FS mode. I want to put BG image to popup.

    Thanks in advance(btw, going to buy your controls, your list picker loads much faster  than SLtoolkits one on 100+ items and definitely has less bugs)
  2. Georgi
    Admin
    Georgi avatar
    296 posts

    Posted 01 Nov 2011 Link to this post

    Hi Grigory,

    Thank you for contacting us and for your feedback.

    If I understand you correctly, your page has specified either a background color or an image - this gives you ~1 fill rate. Next, when you open the picker's popup, it has a background color, which gives you additional ~1 fill rate. Finally, you have ~1 fill rate coming from the items control which hosts picker's items.

    Unfortunately there is not much we can do in this case. You may try some additional workaround - remove the page's background when the control is opened in full screen and restore it back when the control's popup is closed. You may hook the StateChanged event of the control, which will tell you when the control is Expanding, Expanded, Collapsing and Collapsed.

    As for the background of the popup part - this is definitely a good addition and we will implement a PopupStyle property which will control the visual appearance of the Popup part when in full screen. I would like to thank you for your feature request - I have updated your Telerik points for your time.

    Do not hesitate to write us back should you have any question/problem with our tools.

    Best wishes,
    Georgi
    the Telerik team

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