Kendo Tooltip Issues in Firefox

3 posts, 1 answers
  1. Ian
    Ian avatar
    9 posts
    Member since:
    Nov 2013

    Posted 08 Oct 2014 Link to this post

    We are developing using Kendo UI / UI for ASP.MVC. The product versions are UI for ASP.NET MVC Q1 2014 and Kendo UI Complete v2014.1.318.

    The controls are created using an MVC View as follows and the 'title' attribute used for tooltip is injected from a view model Description attribute.:

    @(Html.Kendo().DropDownListFor(m => m.VehicleType)
    .HtmlAttributes(new { style = "width:250px" ,

    title = ModelMetadata.FromLambdaExpression<IncidentsViewModel, string>(
    model => model.VehicleType, ViewData).Description
    .OptionLabel("--Select Value--")

    the Kendo UI tooltip is attached using jquery as follows (this is an example or a dropdown list). The key to this code being that the title attribute is copied from the default input tag for the list to the kendo controls 'wrapper' tag - where the tooltip is attached.

    $('.k-widget.k-dropdown.k-header').not("[aria-owns='dlAdmin_listbox']").kendoTooltip({ width: 250, position: "top" });

    $('[data-role="dropdownlist"]').each(function () {
    var ele = $(this).data("kendoDropDownList");
    if (ele && ele.element[0].title && ele.element[0].title != "") {
    ele.wrapper[0].title = ele.element[0].title;
    ele.element[0].title = "";

    This approach works well in IE 8+ and Chrome. However for FireFox we are intermittantly seing 'flicker' effects when a control is hovered over. I believe that this maybe related to the form scrolling - but I am not certain of this. It seems to occur more frequently when there are many controls with many tooltips on a form.

    I attach a sample project to demonstrated this issue.


  2. Answer
    Alexander Popov
    Alexander Popov avatar
    1411 posts

    Posted 10 Oct 2014 Link to this post

    Hi Ian,

    I am not sure what exactly is causing this issue, but using the latest Kendo UI release seems to solve it. For convenience I am attaching an updated version of your example.

    Alexander Popov
    Join us on our journey to create the world's most complete HTML 5 UI Framework - download Kendo UI now!
  3. Ian
    Ian avatar
    9 posts
    Member since:
    Nov 2013

    Posted 17 Nov 2014 in reply to Alexander Popov Link to this post

    Thanks for the confirmation but I did already figure this myself as I upgraded for some other reason.
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