Tabstrip/Multipage load content twice when using set_contentUrl

2 posts, 0 answers
  1. Chris Owens
    Chris Owens avatar
    12 posts
    Member since:
    May 2004

    Posted 10 Jul 2012 Link to this post

    The code that is called by set_contentUrl causes the content to always be loaded twice.

    When creating a new tab and pageview clientside, when you call set_contentUrl on the newly created PageView the _createIframe code is eventually called resulting in the content being loaded twice due to the src of the iframe being specified two different ways with no conditional after the first succeeds.  Stepping through after the call to set_contentUrl in IE9 confirms this and is a huge performance issue as it doubles every page viewed in a tab.

    Here's the Telerik js code (that is included as the webresource):

    b.RadPageViewCollection._createIframe=function(c){var d=document.createElement("iframe");
    d.frameBorder="0";
    d.style.width="100%";
    d.style.height="100%";
    if(c._contentUrl){d.src=c._contentUrl;
    }c.get_element().appendChild(d);
    a(c.get_element()).find("iframe").attr("src",c._contentUrl);
    };

    The code doesn't match the scripts included in the install directory and if you switch to EnableEmbeddedScripts=false and specify the individual scripts required ( a real pain in the @$$ since you can't mix and match), the content is not loaded twice.  Looks like the scripts in the webresource are outdated.

    By mix & match, I meant that you can't just have one Telerik control with EnableEmbeddedScripts=false, as there is no error handling if things like $Telerik are already instantiated - so you have to do it for every Telerik control on the page.

  2. Dimitar Terziev
    Admin
    Dimitar Terziev avatar
    1266 posts

    Posted 12 Jul 2012 Link to this post

    Hello,

    Could you clarify the version of the controls that you are using?

    Kind regards,
    Dimitar Terziev
    the Telerik team
    If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed now.
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