When closing a RadWindow with a HtmlPlaceholder the HtmlSource gets displayed on the underlying content

5 posts, 0 answers
  1. Przemyslaw
    Przemyslaw avatar
    21 posts
    Member since:
    Oct 2007

    Posted 15 Dec 2009 Link to this post


    I have a RadWindow that contains a control with a RadHtmlPlaceholder. Its HtmlSource is bound to a string that contains some html content. The RadWindow shows up properly, you can move it around and the content moves with the window. However, when I close the it the html content is imprinted on the underlying page in the upper, left hand corner. You can see the effect in the attached images where one shows the RadWindow and the other displays what happens when the RadWindow is closed.

    regards, Przemek
  2. Simeon
    Simeon avatar
    23 posts
    Member since:
    Jul 2012

    Posted 15 Dec 2009 Link to this post

    We are experiencing the same issue.  It has only started happening after we installed the SP1 release (2009.3.1208.1030) if that is any help?

    I have managed to make the html content disappear by adding an event for the window close and hiding the html control


    private void WebPageWindow_Closed(object sender, Telerik.Windows.Controls.WindowClosedEventArgs e)



        HtmlPlaceholder.Visibility =




    That seems to sort the problem out.


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  4. Bobi
    Bobi avatar
    513 posts

    Posted 16 Dec 2009 Link to this post

    Hello Przemyslaw Soszynski

    Is it possible to send us some sample code in order to fix this issue?
    Untill then you can used the suggested solution:
    private void WebPageWindow_Closed(object sender, Telerik.Windows.Controls.WindowClosedEventArgs e)
        HtmlPlaceholder.Visibility = Visibility.Collapsed;

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  5. James
    James avatar
    9 posts
    Member since:
    Nov 2007

    Posted 27 Jul 2010 Link to this post

    I am also seeing this problem, the workaround worked.
  6. Vladislav
    Vladislav avatar
    274 posts

    Posted 29 Jul 2010 Link to this post

    Hello all,

    Just a follow up for this issue.
    The problem is resolved and you shouldn't use anymore the workaround supplied.
    The fix is available with our latest internal build (from 23.07.2010) and you can try it against the released binaries.
    This fix will be also included in our upcoming official SP1 release, which is expected in the middle of August.

    Kind regards,
    the Telerik team
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