IE 11 will not Allow Drag/Drop

6 posts, 0 answers
  1. BRIAN
    BRIAN avatar
    12 posts
    Member since:
    Aug 2011

    Posted 03 Jan 2014 Link to this post

    Hello,

     

    I have an ASP.NET site that has been working fine and continues to work for IE 10 users. But for those who have upgraded to IE 11, the RadAsyncUpload no longer works when trying to drag/drop files. For example, if an IE 10 user has Windows Explorer and the webpage side-by-side, they can easily drag a file from Windows Explorer, and successfully drop the file onto the RadAsyncUpload control (the control is embedded in the webpage). By if an IE 11 user attempts to do the same thing, nothing happens. When they drop the file on the RadAsyncUpload control, it just disappears.

     

    My webpage is basically modeled after the AsyncUpload - File Upload with Drag and Drop demo. This has been working for months. The problem began with some of the IE 10 users upgraded to IE 11. The IE 11 users can click the [Select] button and successfully add files to upload, but they can no longer drag/drop.

     

    I’ve tried to resolve this issue by applying the suggestions in the following Internet resources, but have had no luck resolving the problem:

     

        How to get your ASP.NET application working in IE11

        http://blogs.telerik.com/aspnet-ajax/posts/13-12-19/how-to-get-your-asp.net-application-working-in-ie11

     

        ASP.NET Doesn’t Detect IE11

        http://jwcooney.com/2013/11/19/asp-net-doesnt-detect-ie11/

     

    Does anyone know how I can resolve this issue I am having with IE 11?

     

    Thank you

  2. BRIAN
    BRIAN avatar
    12 posts
    Member since:
    Aug 2011

    Posted 07 Jan 2014 Link to this post

    I have not gotten any response to this issue yet. Does that mean that everyone else is stumped like I am? Or does that mean that the forum is too busy to respond?

     

    In the meantime, I have run some additional tests. My important discoveries are listed below.

     

    I deployed my ASP.NET app to a Windows 7 machine that runs IIS7. The drag/drop feature of the RadAsyncUpload control works fine in this environment while I am using IE 11.

     

    The difference is this; in my initial post, I was describing my ASP.NET app that is hosted on a Windows Server 2008 R2 Standard edition with Service Pack 1 running IIS 7. It is also a Domain Controller. I am not sure why running the ASP.NET app on Windows 7 vs. 2008 would make a difference, unless it has something to do with tighter security on Windows 2008, especially since it is a DC.

     

    To make this more puzzling, however, I rolled the Windows 2008 server back to IE 10, and it still will not function with the RadAsyncUpload control. This worked before and now it is not working. So now I am thinking that there may have been some additional update, along with the IE 11 upgrade that got installed on this server, which is ultimately causing this problem on the server.

     

    Is anyone aware of any Windows updates that may create problems for the RadAsyncUpload control?

     

    Thank you

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  4. Peter Filipov
    Admin
    Peter Filipov avatar
    1028 posts

    Posted 08 Jan 2014 Link to this post

    Hi Brian,

    I have tested our online demo and the drag and drop functionality works fine under IE11. My suggestion is that your IE browser has been opened under some of the IE modes (e.g. IE9) where the drag and drop is not supported. Please open the developer tools and check under which version you are testing.

    Regards,
    Peter Filipov
    Telerik
    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 the blog feed now.
  5. BRIAN
    BRIAN avatar
    12 posts
    Member since:
    Aug 2011

    Posted 16 Jan 2014 Link to this post

    I have been able to prevent this problem by adding the following metadata to the <head> tag of each page that uses the RadAsyncUpload control:

    <head>

        <meta http-equiv="x-ua-compatible" content="IE=EmulateIE10" />

    </head>

  6. Pankaj
    Pankaj avatar
    2 posts
    Member since:
    Apr 2015

    Posted 02 Apr 2015 Link to this post

    same problem i am facing.
    i have add in page
    <head>

        <meta http-equiv="x-ua-compatible" content="IE=EmulateIE10" />

    </head>
    but not resolve this.
  7. Peter Filipov
    Admin
    Peter Filipov avatar
    1028 posts

    Posted 07 Apr 2015 Link to this post

    Hi Pankaj,

    Could drag and drop files on our online demos? 

    Regards,
    Peter Filipov
    Telerik
     

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