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Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / File upload from local...
Microsoft Dynamics AX (Archived)

File upload from local machine (by having the path only)

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Posted on by Ragoza Oleksandr 737

I have a custom form, and on this form, there is “File name” field, where User can specify the path to the file, located on his local machine.

Also, there is a button “Download” on this form, which should upload the file (which is specified in the “File name” field).

When I try to read the file by using -

var readerStream = new System.IO.StreamReader(catalogVersion.Filename);

the file searching and reading is executed on the server machine (not from User’s local machine).

There is a standard FileUpload control, which I can’t use, since this file is used for many purposes (not only for Import), but and for mapping/settlement with other fields from other tables (so I would need to download this file every time when form is opened, which is ridicules).

So, the question is – how I can “read” the file, if I have the path to this file, which is located on the local machine?

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  • Suggested answer
    Vilmos Kintera Profile Picture
    Vilmos Kintera 46,149 on at

    D365fF&O is executing code server-side, so obviously you are handling files incorrectly if you expect it to work directly from a client folder through a web browser. Think about it, that would be a serious security issue then for web browsers, if any website could just access local content.

    Have a look at these articles:

    [View:http://dev.goshoom.net/en/2016/03/file-upload-and-download-in-ax-7/:750:50]

    [View:https://sertandev.wordpress.com/2017/02/07/how-to-work-with-files-in-ax-7-part-1-upload-download-reading-and-storing-files-in-db/:750:50]

  • Ragoza Oleksandr Profile Picture
    Ragoza Oleksandr 737 on at

    HI Vilmos,

    Thank you for quick replay.

    Information that you provided is familiar to me, but once again thank you.

    The specificity of my task is that User (which will click the “Upload” button) will not select the file in a File Explorer, the system will look into some table field, which contain the path to the desired file.

    So I need “read” (Upload) the file , without selecting the file in File Explorer

  • Vilmos Kintera Profile Picture
    Vilmos Kintera 46,149 on at

    Again, I do not think that is technically feasible due to the above security concerns. File access from a browser should have user interaction, unless you use some specific browser add-ons or hooks.

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