Solved

Maintain scroll position on postback

Posted on 2014-12-18
1
427 Views
Last Modified: 2014-12-18
I have a aspx page that has controls nested in UpdatePanels where I need to maintain scroll position across postbacks. The page is inside a Master page, with  one main UpdatePanel, then an Ajax Tab Container. Inside the TabContainer is a gridview nested inside another gridview. I need to maintain scroll position in the inner gridview.

I have tried smartNavigation="true" maintainScrollPositionOnPostBack="true" in the page and in the web.config. I have also tried various JavaScript solutions that I have found. Nothing seems to affect the scroll at all. If I the page is visible above the TabContainer on scrolling, the page will go back to that point. If I click on items in the gridview with only the gridview visible on scrolling, it scrolls to the top of the TabContainer. The page knows it's in the TabContainer control, but not it's position.

This is the current JavaScript solution that I am trying, but again nothing seems to change the behavior.

<script type="text/javascript">
    //-------------------------------------------------------//
    // Maintain scroll position in given element or control
    //------------------------------------------------------//
    var xInputPanel, yInputPanel;
    var xProductPanel, yProductPanel;
    var prm = Sys.WebForms.PageRequestManager.getInstance();
    prm.add_beginRequest(BeginRequestHandler);
    prm.add_endRequest(EndRequestHandler);
    function BeginRequestHandler(sender, args) {
        yInputPanel = $get('<%=gvManAcctNumr.ClientID%>').scrollLeft;
        yProductPanel = $get('<%=gvManAcctNumr.ClientID%>').scrollTop;
    }
    function EndRequestHandler(sender, args) {
        $get('<%=gvManAcctNumr.ClientID%>').scrollLeft = yInputPanel;
        $get('<%=gvManAcctNumr.ClientID%>').scrollTop = yProductPanel;
    }
</script

Open in new window

>
I have tried using various controls (TabContainer, TabPanels, Gridview, etc.) in the above code, but nothing changes. Has anybody done something like this or is it not possible?

It's very annoying to click on an item in a list of 50 and have it jump back the top of the page because the user has to scroll down to process the next item.
0
Comment
Question by:Jerry Miller
1 Comment
 
LVL 18

Accepted Solution

by:
Jerry Miller earned 0 total points
Comment Utility
OK, so I wrapped the contents of the TabPanel in an UpdatePanel so it is only doing a partial postback and it now works. Something so simple and I have been beating my head against a wall all day on this one.
0

Featured Post

How to run any project with ease

Manage projects of all sizes how you want. Great for personal to-do lists, project milestones, team priorities and launch plans.
- Combine task lists, docs, spreadsheets, and chat in one
- View and edit from mobile/offline
- Cut down on emails

Join & Write a Comment

Introduction Got endorsements from your clients?  Great!  There is almost nothing better than word-of-mouth advertising.  But how can you do that on the internet?  Sure you can make a page for endorsement quotations and list them all, but who is …
Introduction A frequently asked question goes something like this:  "I am running a long process in the background and I want to alert my client when the process finishes.  How can I send a message to the browser?"  Unfortunately, the short answer …
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…
This video explains how to create simple products associated to Magento configurable product and offers fast way of their generation with Store Manager for Magento tool.

763 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

9 Experts available now in Live!

Get 1:1 Help Now