Template, JQuery, and Bind event handler going away.

3 posts, 0 answers
  1. Scott
    Scott avatar
    2 posts
    Member since:
    Apr 2012

    Posted 09 Jul 2012 Link to this post

    I have an issue with binding the click event to a label in a template.

    I’ve posted issue on JSFiddle: http://jsfiddle.net/scornell10/JFTbk/

    When you select an item in the DataGrid, it is moved to the ListView.

    The ListView uses a template that has a label (with the value of X) that I bind the click event too.

    The bind works for 1st or the last selection.

    If I select multiple, only the last item in the listView has the click event bind to it. All the others go away.

    I’ve used Chrome dev tools and I can see the click event disappear when I add another item.

    I can get a workaround by changing the template to:

    <label>${Name}</label><label id="${ID}" onClick="onDelete(this);">X</label>

    I’d rather bind dynamically as each item is selected.

    Any thoughts on why it seems to remove the click handler?

    Thanks

  2. Alexander Valchev
    Admin
    Alexander Valchev avatar
    2875 posts

    Posted 12 Jul 2012 Link to this post

    Hi Scott,

    The template is re-rendered every time when you add a new item to the list view as a result the event handlers are unbind. As a solution I would recommend the following change:
    //instead of
    $(id).bind('click', onDelete);
    //to use
    $("#assignView").on('click', ".selection label[id]", onDelete);

    Thus way the event handler will be attached to all elements which match the selector, now and in the future (e.g. after the template is re-rendered).
    For convenience I have updated the fiddle - http://jsfiddle.net/valchev/JFTbk/3/ 

    Regards,
    Alexander Valchev
    the Telerik team
    Join us on our journey to create the world's most complete HTML 5 UI Framework - download Kendo UI now!
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  4. Scott
    Scott avatar
    2 posts
    Member since:
    Apr 2012

    Posted 12 Jul 2012 Link to this post

    Alexander:

    thanks for the quick reply.  that is the fix I need.

    thanks
    Scott
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