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Bug Report T295038
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ASPxImageZoomNavigator - Thumbnail folder is rendered incorrectly when ASPxImageZoomNavigator is located in UserControl

created 9 years ago

I have an ASPxImageZoomControl that is showing behavior that I do not understand.

In my codebehind, I set the Image Source Folder and Image Cache Folder dynamically:

zoomNavigator.ImageSourceFolder = "~/Site/Images/item-detail/HB2P";
zoomNavigator.SettingsAutoGeneratedImages.ImageCacheFolder = "~/Site/Images/Thumbnails";

However, when it renders out, the thumbnail is correct, but the main image is broken. Upon further inspection, it has a url of "…/…/…/Site/Images/Thumbnails/5fdf4d2e25b9f2ed10961fdd2b19bfd9/400x250.0/HB2P.png?130880136836921464"

If I remove one of the ellipsis, the URL is correct and the image successfully renders.

Any idea why this is happening?

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Answers approved by DevExpress Support

created 9 years ago

We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.

Note: Hotfixes may be unavailable for beta versions and updates that are about to be released.

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    created 9 years ago (modified 9 years ago)

    Hi,

    I have created a small sample project that covers your scenario and operates correctly as shown in the attached screencast. I hope reviewing it will help you find a solution to this problem. If this does not help, please update my sample to illustrate the problem. Then, I will see what is going wrong and do my best to find a solution.

    Update:

    As workaround, I suggest you use a site-root relative path, which is resolved against the site root:

    ASPx
    ImageSourceFolder="\site\A101\" SettingsAutoGeneratedImages-ImageCacheFolder="\site\thumbs\"

    Thanks,
    Alessandro.

      Show previous comments (1)
      Vova (DevExpress Support) 9 years ago

        Hello Michael
        Yes, you are absolutely right. I've forwarded this issue to our R&D team for research.
        As workaround, I suggest you use a site-root relative path, which is resolved against the site root:

        ASPx
        ImageSourceFolder="\site\A101\" SettingsAutoGeneratedImages-ImageCacheFolder="\site\thumbs\"

        I've attached your project modified according to your conditions. It works correctly. See the attached video.
        Let me know if you have additional questions.
        Best regards,
        Vova

        DI DI
        Dovetail Internet 9 years ago

          In my production environment, the folder "Site" is a virtual directory under the Application, but the physical folder is not under the Application folder.
          In that particular instance, I do not believe this workaround works. It attempts to create the folder "Site" underneath my Application folder, not use the virtual directory "Site".
          Due to permissions, I get the following error:
          The 'zoomNavigator' ASPxImageZoomNavigator cannot create folder '\site\images\thumbnails'.

          Vova (DevExpress Support) 9 years ago

            Yes, you are right, the workaround won't work in such conditions. Unfortunately, I do not have any other one. Let's wait for our developers' results. We will inform you as soon as we have  news.

            Best regards,
            Vova

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