Develop Reference

C# The network path was not found

Im having trouble with writing files to remote directory via network. The following code fails when I try to check if the directory exists:
if (!Directory.Exists(processingPath))
Directory.CreateDirectory(processingPath);
processingPath is composed like
processingPath = xxxObject.serverPath + "processing\\";
xxxObject.serverPath contains something like this
\\machineNetworkName\sharedFolder\
Its working properly, but when many requests are processing (running as tasks asynchronously), it stops working and failing into exception:
System.IO.IOException: The network path was not found.
Could you please help me what could be the problem and why it is failing after some time on network path???
Thanks for your solutions

I got the same error before, it was about authentication problems.
You have to be sure that you set properly the user on IIS, because it use a Default App Pool's identity which can't access to your NFS.
You can also use IIS virtual folders to set the identity.
(on IIS manager, see App Pool settings -> Identity and also virtual folders settings -> identity).
In my case, it worked better by using the Impersonation directly in the code, so I recommend you to use the VladL WrappedImpersonationContext Object: How to provide user name and password when connecting to a network share
Last thing to check, the owner of the files on your NFS server, if they were created under the root user, it might not work.

I had the same problem and solved it. The problem in my code and I see it in yours, too, is that you have the slash at the end of the network path.
Instead of processingPath = xxxObject.serverPath + "processing\\"; write: processingPath = xxxObject.serverPath + "processing";

Upload having errors on Appharbor. Good on Local

if (Upload.ContentLength > 0)
{
var FileName = Upload.FileName;
var path = Path.Combine(Server.MapPath("~/Content/Images"), FileName);
Upload.SaveAs(path);
cement.ImageLocation = ("/Content/Images/" + FileName);
}
This code is working perfectly in Local IIS hosting. But having problem on AppHarbor. The error that I got from the logging is this.
**Message**
An unhandled exception has occurred.
**Exceptions**
[DirectoryNotFoundException: Could not find a part of the path 'D:\Users\apphb9840cac8716388\app\_PublishedWebsites\RMQGrainsBeta\Content\Images\Capture.PNG'.]
I tried to read some of the articles about this and Got some Information that that the Folder might be protected or something, so I removed the ReadOnly on the Images folder and try to git bash, the problem is. GitBash doesn't recognize the difference and won't push the changes of the folder.

Finally got an answer from AppHarbor. So the thing is, it is not the code that is having the problem. It is the AppHarbor services that is blocking us to upload or directly access the file system. Here is what the Tech from the AppHarbor says.
About storing images: AppHarbor does not allow write access to the
application directory by default. This is because the local filesystem is
ephemeral and may be wiped on each deployment and/or during system
maintenance. For this reason it needs to be manually enabled on the
settings page, and it should only be used for temporary storage purposes such as caching.
I'd recommend using a cloud file storage solution such as Amazon S3. You can
upload files to S3 from your application or the client can upload files
directly to Amazon S3 by using presigned URLs. This will allow you to build
a scalable, distributed file storage feature that is suitable for cloud-based
platforms like AppHarbor. Let me know if you need help
implementing/architecting a solution that suits your needs!
Best,
Rune
Sorry for wasting your time Guys. But thank you for viewing the problem.

Check if file from remote server exists

i have an application which requires access permission to a file on remote server.
My app is in Server A, and the file i want to access is in Server B. These 2 servers are in the same domain.
I created a virtual directory in Server A for the directory in Server B. The name of virtual directory is FolderFromServerB and its path is \ServerB\Folder. I use a user for auth, and when i test the connection in IIS it says all is OK.
Also, when i put an anchor tag in a test file like below, i can access the file and the content is shown in the page:
Test file --> **This works**
But my problem is when i use code in order to if that file exists or not, it always returns with False. My code is like below:
FileInfo fi = new FileInfo(#"\FolderFromServerB/test.txt"); --> This doesn't work
Response.Write(fi.Exists); --> This always 'False'
I granted 'Full Control' permission to my user& NETWORK SERVICE & Everyone & Administratos in Server B but i didnt work neither.
How can i make it work?
It was working last week. I guess the server updated itself and some updates made that occur, but i couldn't find any workaround. Im so desperate now and i have to change all of my code and spend much time to make it work.

I found the workaround that is in web.config :
<identity impersonate="true" userName="{domain}\{username}" password="{password}"/>
I used File.Exist() for a few months, but then suddenly it was gone and didnt work, and i dont know why. But it is the solution above.

Your code does not work because the current execution folder of an ASP.Net application is not the folder of you application, but c:\windows\system32.
When you create the FileInfo object, you will try to read c:\windows\system32\FolderFromServerB\test.txt.
The <a href="FolderFromServerB/test.txt"> works because the link will be relative to the current page (it won't works if the page is in another directory).
If the file you are looking for is under your application directory, you can convert a virtual to a physical path using :
string actualFilePath = HttpContext.Current.Server.MapPath("~/FolderFromServerB/test.txt");
FileInfo fi = new FileInfo(actualFilePath);

WP8 copy SharedStorge file directly into IsolatedStorage

I am developing a Windows Phone 8 application but am having a lot of issues with file access permission exceptions hindering the approval of my application when ever I try accessing files in the "local" folder (this only happens after the application has been signed by the WP store, not when deployed from Visual Studio). To solve this I have moved all file operations to IsolatedStorage and this seems to have fixed the problems.
I only have one problem left though. My application needs to make use of the file extension system to open external files and this seems to involve the file first being copied to the local folder where after I can then manually copy it into IsolatedStorage. I have no problem in implementing this but it seems that a file access permission exception also occurs once the system tries to copy the external file into the local folder.
The only way I think this can be solved is if I can direct the system to directly copy into IsolatedStorage but I cannot figure how to do this or if it is even possible. It seems as if though the SharedStorageAccessManager can only copy into a StorageFolder instance but I have no idea how to create one that is directed into IsolatedStorage, any ideas?
PS. Do you think that the Microsoft system might be signing my application with some incompetent certificate or something because there is not a hint of trouble when I deploy the application from Visual Studio, it only happens when Microsoft tests it or when I install it from the store using the Beta submission method.
Below is a screenshot of the catched exception being displayed in a messagebox upon trying to open a file from an email:
EDIT:
Just to make it even clearer, I do NOT need assistance in figuring out the normal practice of using a deep link uri to copy an external file into my application directory. I need help in either copying it directly into isolatedstorage or resolving the file access exception.

Listening for a file launch
When your app is launched to handle a particular file type, a deep link URI is used to take the user to your app. Within the URI, the FileTypeAssociation string designates that the source of the URI is a file association and the fileToken parameter contains the file token.
For example, the following code shows a deep link URI from a file association.
/FileTypeAssociation?fileToken=89819279-4fe0-4531-9f57-d633f0949a19
Upon launch, map the incoming deep link URI to an app page that can handle the file
// Get the file token from the URI
// (This is easiest done from a UriMapper that you implement based on UriMapperBase)
// ...
// Get the file name.
string incomingFileName = SharedStorageAccessManager.GetSharedFileName(fileID);
// You will then use the file name you got to copy it into your local folder with
// See: http://msdn.microsoft.com/en-us/library/windowsphone/develop/windows.phone.storage.sharedaccess.sharedstorageaccessmanager.copysharedfileasync(v=vs.105).aspx
SharedStorageAccessManager.CopySharedFileAsync(...)
I've inline the information on how to do this from MSDN http://msdn.microsoft.com/en-us/library/windowsphone/develop/jj206987(v=vs.105).aspx
Read that documentation and it should be clear how to use the APIs as well as how to setup your URI mapper.
Good luck :)

Ok I figured it out. The "install" directory is actually restricted access but for some reason the Visual Studio signing process leaves the app with enough permissions to access this folder. The correct procedure of determining a relative directory is not to use "Directory.GetCurrentDirectory()" but rather to use "ApplicationData.Current.LocalFolder". Hope this helps!

IIS Permissions for Saving Word Documents

Our ASP.NET/C# lets users edit and manage Word (OpenXML) documents that are hosted on a server. I am using client-side VBScript functions to handle some of the editing functions including saving the document to a folder on the server. For the save functionality, I am using the following function call :
Document.SaveAs "http://server/savefolder/savefile.docx"
I have given "Full Control" permissions on savefolder to both the NETWORK SERVICE and the IUSR_MACHINE users. Yet the above call fails. The error number returned is 5096. The error message is some gibberish that doesn't make any sense.
The server is Windows 2003 and the IIS version is 6.0. I have installed the OpenXML SDK 2.0 CTP on the server.
I can successfully read and print documents.
Does anyone tell me what I am doing wrong? or what additional settings need to be in place?
BTW, the error message ("gibberish" from my post) is:
"EOALPHABETICARABICARABICABJADARABICALPHABAHTTEXTCAPSCARDTEXTCHARFORMATCHI"
No, I am not making this up!

In my case, that error 5096 with description "EOALPHABETICARABICARABICABJADARABICALPHABAHTTEXTCAPSCARDTEXTCHARFORMATCHI"
occurred when using VBA code in Access to drive a Word mail-merge. The cause was trying to save a document with the same name (including path) as an open document.
Error line:
objApp.ActiveDocument.SaveAs saveAsName
where objApp is the object variable representing the Word application and saveAsName is the string variable storing the name I am trying to save the file as e.g. "C:\temp\testdoc.docx".
IF a file with the same name exists but is not open, the above code overwrites it silently.

Turns out WebDAV is not turned on by default in IIS 6.0. Once I turned it on, I was able to save the documents just fine.
Thanks for all your answers!

Just a guess... if the vbscript is running on the client, the code is probably running under the user's account, not under the server's IIS account. So unless you give write access to that user, vbscript probably won't work for this.
Since you're using ASP.NET, you could try writing a web service that takes in Word document data and saves it to the server for you.

I'd try running Fiddler on the client while trying to save the document to get a sense of what's really going on. I wonder if maybe it's trying to do an HTTP PUT (as opposed to a POST).

Have you given write access to the folder in IIS manager?

Is the save folder you're using outside of the websites root directory, i.e. 'hidden' from the internet?

Just to add to SI's information...
I also get this I get the 5096 - EOALPHABETICARABICARABICABJADARABICALPHABAHTTEXTCAPSCARDTEXTCHARFORMATCHI error when my code tries to save a MS Word document with the same name and to the same location as a Word document that is already open in another instance of Word.
Although not entirely relevant to this thread, I hope it may help someone else who stumbles upon this thread!
Regards,
Duane,

this question is old but still active ?
You save the file with a http://... url, i think you should save it with a file URL as
Document.SaveAs "\\server\savefolder\savefile.docx"
Grtz