Unhandled Exception - Unable to get property '_preInitialize'

3 posts, 0 answers
  1. Bermuda
    Bermuda avatar
    1 posts
    Member since:
    Jan 2016

    Posted 17 Jan Link to this post

    Hi,

    I am testing the RADSpreadsheet control and have the following error when the page loads:

    Unhandled Exception - Unable to get property '_preInitialize' of undefined null reference
    Telerik.Web.UI.RadListBox._preInitialize("RadSpreadsheet1_FilterMenu_ValueListBox","0")

    I have the latest version of the UI for ASP.NET AJAX 2016.3.1027

    Developing using VS 2015 Framework 4.5.2

    Thanks.

  2. Su
    Su avatar
    1 posts
    Member since:
    Jan 2017

    Posted 19 Jan Link to this post

    HI:

    I have the same problem.

    How can I do?

  3. Bozhidar
    Admin
    Bozhidar avatar
    1113 posts

    Posted 20 Jan Link to this post

    Hi,

    I tested the Spreadsheet with the specified version, however I wasn't able to observe the same issue. Could you share the markup you are using, or open a support ticket where you can attach a sample project, so that I can reproduce the issue on my end?

    Regards,
    Bozhidar
    Telerik by Progress
    Try our brand new, jQuery-free Angular 2 components built from ground-up which deliver the business app essential building blocks - a grid component, data visualization (charts) and form elements.
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