RadEditor Slowdown

2 posts, 0 answers
  1. Bill
    Bill avatar
    1 posts
    Member since:
    Feb 2016

    Posted 01 Feb Link to this post

    Thanks in advance for your assistance.

     We've been using the RadEditor for years now.  When we recently updated the Telerik controls to the 2015.3.1111.40 version we experienced a very significant slowdown in responsiveness.  It became virtually un-useable due to the delay between a keystroke and the echo of that keystroke.

    We were able to improve the situation somewhat by clearing the modules in our code-behind.  The delay is still significant, more delay than before the update to the 2015.3.1111.40 version and not really acceptable to our users but at least they are able to edit documents now.

    As another attempt to resolve this problem we tried updating again - to the 2016.1.113.40 version.  That had no noticeable effect on the problem.

    What do you suggest as a way to restore our use of the RadEditor to its previous responsiveness?


    Here is the source from the web page where we define the RadEditor control: 

    <telerik:RadEditor ID="reContent" ContentAreaMode="Iframe" EditModes="Design,Preview" ToolbarMode="Default" ToolsFile="~/Telerik/ToolsFile.xml" ContentAreaCssFile="EditorContentArea.css" AutoResizeHeight="true" Width="100%" runat="server">
    <ImageManager MaxUploadFileSize="1000000" EnableImageEditor="true" />
    <SpellCheckSettings DictionaryPath="~/Telerik/RadSpell" AllowAddCustom="false" SpellCheckProvider="EditDistanceProvider" EditDistance="2" FragmentIgnoreOptions="All" WordIgnoreOptions="UPPERCASE,WordsWithNumbers" />


    Here is the source from the code behind - from the Page Load sub - where we added code to clear the modules to help with performance.

    reContent.ImageManager.ViewPaths = Split(ImageManagerURL)
    reContent.ImageManager.UploadPaths = Split(ImageManagerURL)
    reContent.ImageManager.DeletePaths = Split(ImageManagerURL)
    If so.Manage_Security Then
    reContent.EditModes = Telerik.Web.UI.EditModes.All
    End If


  2. Ianko
    Ianko avatar
    1507 posts

    Posted 04 Feb Link to this post

    Hi Bill,

    With the code provided I do not see any particular reason for RadEditor to perform slower than expected. Especially in terms of text typing/editing.

    Can you reproduce the same here—http://demos.telerik.com/aspnet-ajax/editor/examples/overview/defaultcs.aspx? If you are capable to reproduce the same, can you provide the exact steps, or the HTML content with which to locally examine that?

    Do you want to have your say when we set our development plans? Do you want to know when a feature you care about is added or when a bug fixed? Explore the Telerik Feedback Portal and vote to affect the priority of the items
  3. DevCraft R3 2016 release webinar banner
Back to Top