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Re: How can I extract attachment from an xml file？

rajkumar.bathula — Thu, 02 Nov 2017 14:14:22 GMT

Hello, I am looking for solution to read the user attached file (usually JPEG, PNG ) from the form and compress it (to reduce file size) and then placing these compressed files instead actual files that user attached. Mine is a browser enabled form. Please advice if we can achieve it. I have code behind option enabled for my form. So i can use c# code to compress the attachments.

How to Extract Attachment from Infopath Forms in javascript?

bejjanki05 — Thu, 15 Jan 2009 20:04:44 GMT

Please reply ASAP if ypou know.

Re: How can I extract attachment from an xml file？

joguras — Thu, 11 Sep 2008 20:51:11 GMT

Hi,

is it possible to extract attachment from browser-enabled form to avoid sync form from server to client's browser? when I use InfoPath 2007 to store attachment into my form the is no network traffic from server to infoPath 2007 after I clicked Attach. When I use the same form with IE after saving attachment to the server I see network traffic back to my client's browser - InfoPath Forms Services sync loaded form with with one in my browser.

I investige structure of webpage showing my form and found some variable (javascript) which contains all form's data !

How to avoid sync form after loading attachment to the server?

Regards,

Robert

Re: How can I extract attachment from an xml file？

Hilary Stoupa — Fri, 27 Jun 2008 17:49:19 GMT

Hi:

That information is in the file header. In the post at http://chrissyblanco.blogspot.com/2006/07/infopath-2007-file-attachment-control.html about halfway down the code, the author pulls the file name from the attachment and converts it from bytes to a string. When I tried using this code (modifying only the location it saves a file to, adding a message box to show me the file name variable, and fixing one issue) the fileName variable included the file extension.

The modification I made was to change this:

// The actual filename starts at position 24 . . .
for (int i = 0; i <>
{
fnBytes[i] = attachmentNodeBytes[24 + i];
}

to this:

// The actual filename starts at position 24 . . .
for (int i = 0; i < fnLength; ++i)
{
fnBytes[i] = attachmentNodeBytes[24 + i];
}

since the for condition was not complete (and, of course, <> is not a valid C# operator).

Re: How can I extract attachment from an xml file？

apanlee — Fri, 27 Jun 2008 16:34:07 GMT

I' ve already extracted attachment file to local file successfully, But i must know the atachment file type at first.

However, user will upload .doc file or .pdf file or others type , How can i got the file type?

Re: How can I extract attachment from an xml file？

apanlee — Thu, 26 Jun 2008 15:15:54 GMT

Thank you very much.

Re: How can I extract attachment from an xml file？

Hilary Stoupa — Wed, 25 Jun 2008 14:21:46 GMT

Hello:

I was reminded by someone else that these attachments have a header that you can use to get the name of the file. Please see this helpful blog post for more information: http://chrissyblanco.blogspot.com/2006/07/infopath-2007-file-attachment-control.html

Re: How can I extract attachment from an xml file？

Hilary Stoupa — Tue, 24 Jun 2008 18:31:24 GMT

Hello:

I've done this with an open InfoPath form, connected to the Changed event on a picture control using the following code:

string time = DateTime.Now.ToString("ddMMyyyyhhmmss");
string fileName = selectedField + time;
byte[] data = Convert.FromBase64String(picBase);
//write the file
FileStream outFile = new FileStream(path + fileName + ".jpg", FileMode.Create, FileAccess.Write);
outFile.Write(data, 0, data.Length);
outFile.Close();

Where selectedField is a string value from a node in the form, and path is the file path. I'm not sure how this would work with a file -- I'm also not sure how to get the extension of any file that may be attached, but it might get you started.

How can I extract attachment from an xml file？

apanlee — Tue, 24 Jun 2008 17:58:09 GMT

How can I to extract attachment (picture or file attachement*base64) from an XML file (infopath) to a local file. I prefor to use C#. Thank you.