We Keep Coding

Difference behavious between file written by code and by text editor?

I have some xml code that i like to have pretty printed (but is not parsable by tools like XmlDocument etc.) in a browser. I currently write the xml code to a file with
File.WriteAllText(filepath, xmlCode);
When i then open the .xml file in file explorer, I get an error that is can't be parsed. No matter if i open it via code or via file explorer.
However when i copy the exact same message into windows text editor and save it as .xml, it is pretty printed regardless of the browser I open it with. This applies to opening it by code and file explorer.
Does c# or editor add some hidden attributes to the file that is not visible to me (but can be manipulated) which could explain this behaviour?
A colleague of mine said it could have something to do with NTFS streams but I know too little about them.

Thanks for the responses!
It turned out to be more simple than encoding issues and more of a problem of how it was formatted before getting to my end.
Someone must have done:
message.Replace(" ", string.empty);
Which resulted in the xmlns:i part being put together with the attribute name (I belive this is called differently but I don't know the proper name), as such
<AttributeNamexmlns:i="....
My solution:
It still is not parcalable for a XmlDocument or similar for some reason (but that is not necessary for me, as long as it is pretty printed), so my current solution is to open it in a browser (specifically a WebBrowser in Windows Forms, but this should work with a "local" browser too):
First I get rid of the spacing mistake (yes this should be done at an earlier stage in the process, this is just temporary):
var index = msg.IndexOf("xmlns:i");
msg = msg.Insert(index, " ");
Then write it to a file and open it in my custom browser (which is nothing more than a WebBrowser in a form - with nothing modified):
CustomBrowser cb = new CustomBrowser();
cb.Show();
cb.Navigate(filePath);
This then pretty prints the xml doc and displays it. (Thats all I need for my use case)

My designer demolished and not found

Today I opened my project and saw this error, I can't open my designer for this error. I clicked on (ignore and continue) but it shows an empty form. What can I do?

From the error message it seems the Form1.Designer.resx is broken.
The file has an XML file layout so it would be quite easy to spot missing closed tags, etc. The file can store images used too so it can get quite large.
If you really can't rescue it, you could delete it. Often most information is already in the Form1.Designer.cs file.

File is in use while deleting a video which is being played in html via video tag

I have a quick question.
I am using the "video" tag on my web page to display video from my server say "/videos/myvideo.mp4
Video is playing fine.
The issues is when I try to delete the video from some other code (server side)
via File.Delete(physical path) I am getting "File in use" error.
Is this a known issue?
How can I delete the video physically if someone is playing that video on his page at the same time?

I have had a similar problem when trying to rename a file, using C# on Windows 7. I do have a feeling that the problem is not as severe now as it was when I wrote that code. I don't know if some Windows 7 patch has fixed it.
Some things to try:
Ensure your OS is fully patched.
Ensure the file is Close'd before attempting the delete.
Set any variables that use the file to null.
Dispose any variables that use the file.
If you are absolutely sure nothing is holding the file open, you
might need to write a loop to keep trying the Delete, say every few
seconds. (Horrible fudge, it was the only thing that worked for me.)

Visual studio 2010 empties the file on crash

I got a really bad problem while working on visual studio 2010. Accidently the power plug switched off and when I started the computer again the file was completly empty. I tried out following things:
I opened it in notepad and other couple of editors and it was empty.
I then opened it in Hex Editor. Hex editor shows that all bytes are set to 0.
I programatically read the file and it also showd all bytes set to 0.
Checked "Documents\Visual Studio 2010\Backup Files\" for my project and it was empty.
The file size is still showing in KBs but the code is completly gone.
Is there any possible way by which I can recover my code?
If there is not, can anyone suggest me a setting/patch taht should be there so that it never happens again.
Note: I already have Autorecover option set for every 5 minutes in IDE.
Update:
As suggested by Henok, If you have compiled and built the code at least once, you can reverse engineer the binary through reflector.

Doesn't look like it, to stop in future though, save and save often. Also look at using subversion like svn, or Git.

IIS has DLLs cached under C:\Windows\Microsoft.NET\v4.0.xyz\Temporary ASP.NET Files. Look for the dll and use a reflector. I use ILSpy.

Save often and use source control. I use C.V.S., personally.
It sounds like the I.D.E. had the file(s) open for writing at byte 0 when the computer went down, clearing everything out.
Beyond your software problems, I suggest you manage your power plug in such a way that it won't be accidentally switched off.

Same thing happened to me and thought I would post it here for those who would come here for answers.
If you have compiled and built the code at least once, you can reverse engineer the binary. Reflector did the trick for me.

Visual Studio still makes source files empty on sudden crashes, so I think I should share my solution.
Use any cloud file syncing service that supports file versions (for deleted files, too). Dropbox and Google Drive is what I can name. I randomly preferred Google Drive, though Dropbox can do all the same things.
I simply put my source tree in Google Drive, because it has file versions. My builds happen in Google Drive too, so there's much of unwanted traffic for big projects, but you can exclude some subfolders from syncing.
The drawback is that sometimes (in rare cases) Google Drive locks files and Visual Studio pops up "Save As..." dialog or some messages. You can usually close it, then save again successfuly. In very rare cases I had "The file is used by process" errors, and I had to restart Google Drive.

Reading a Bitmap from a TIF file - Works in WinForms not in ASP.NET

EDIT Solution Found: See my post below.
We are writing a library that reads in a TIF file from a scanner. Basically, its a scantron. We are examining the form and reading values from it.
Currently we have a windows test app, and we give it a filepath as a string ("c:\testing\image.tif"). It loads up the tif, reads the document correctly and parses the values.
We also have an ASP.NET web application. We have a test page that does exactly what the windows app does, we hand it an identical string, and i calls the same function on the same class from the same library. It however does NOT read the form correctly. We have verified that it does it fact load up the tif file, and it is actually filled with data (pixels we expect to be white/black are white/black when we examine the Bitmap obect in the immediate window of Visual Studio).
The specific problem is in a library called DataMatrix we use to scan a bar-code off the document. This function is supposed to return a List<string>, each of which is a barcode the library found on the document. In the windows app, this function (DataMatrixDecoder.DecodeBarcode(bitmap)) correctly returns with a Count=1. When using the asp.net app, this returns with Count=0.
Because its the exact same image file, I cannot imagine the problem is in DataMatrix. I can only assume its something with ASP.NET or something.
This isn't even my project, but another guy and I are helping our coworker figure this out, and we are just pulling our hair out. All signs indicate that ASP.NET is correctly loading and handing the image off disk to the "processor" class (which is a class library that uses the DataMatrix stuff, we are not doing ANY code in ASP.NET except for opening/handing the file to the function.).
Does anyone have any ideas as to what it might be, or different things we can check?
I'm not even sure what kind of information to give so I tried to say it all, if you have any questions please ask I'd be more than happy to elaborate on anything. Thanks.
edit:
this is the code on the ascx.cs code-behind, in a button-click event:
if (formReader.ReadTIFF(#"c:\testing\image.tif"))
{
messages.Controls.Add(HtmlHelper.DivSuccess("Read successful."));
}
The formReader class then open the file with a FileStream, and uses that to create a Bitmap. The ASP.NET application is not actually opening the file at all (we were uploading it through a FormUpload control, but after experiencing problems we dummied it down to this). This is the most perplexing thing, that it works in the windows app but not from this web site. ASP.NET has full permissions on that folder to do whatever it wants. It can open the image fine, and the bitmap it creates from the FileStream is the actual image.
edit: Also, the ReadTIFF function right now copies the FileStream into a MemoryStream, ensuring its a not a problem streaming from disk (the entire file is in memory).

How are you passing the filepath to the web application?
It is possible that the function which Decodes might be swallowing some exception.
Use reflector to examine the library (if you have not written it).

I agree. It seems your problem is most probably related to User rights on the directory where you're trying to access the files from. Try giving your Web users the Full access rights on the source directory.

EDIT
Solution Found: The problem was that the open file dialog was changing the CurrentWorkingDirectory. The reason the website never worked, was because the Environment.CurrentDirectory was set incorrectly. When I manually set the CurrentDirectory to the websites' bin folder, parsing works correctly.
Small update. Using the Windows App, and selecting the file via OpenFileDialog, will cause the barcode decoder to fail. Technically, I am using the exact same string to hand to the parser ("c:\testing\image.tif"), yet when I use the OpenFileDialog to get the string, the decoder fails. Is there a clue in this?
update: In fact, even if I don't use the string the OpenFileDialog gives me, if I just open the file dialog at all, it will fail. I don't get this. It's something simple. I need to debug the C++ DataMatrix library, really.