C# File Reading Fails

The following chunk of code "should work":
            string[] FilesToRead = { @"C:\mycode\datafiles\foo.txt" };

            int FileCount = FilesToRead.Length;
           
            for (int fPtr = 0; fPtr < FileCount; fPtr++)
            {
                string nextFile = FilesToRead[fPtr];

                bool b = File.Exists(nextFile);

                string[] lines = System.IO.File.ReadAllLines((nextFile);

            }

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The folder and file is there on my C drive.  However,  I get a file not found exception.  I am on a Windows 10 Pro machine and using VS2013.

Is System.IO broken?

Screen Capture of the Environment During Exception
LVL 1
Howard BashSenior Software EngineerAsked:
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sachiekCommented:
Try to see if you are able to validate with exists method.

string curFile = @"c:\temp\test.txt";
Console.WriteLine(File.Exists(curFile) ? "File exists." : "File does not exist.");

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sachiekCommented:
Also you can try to get fileinfo with this method. This will also give you another way if you are accessing correct or valid file.

// The name of the file.
	const string fileName = { @"C:\mycode\datafiles\foo.txt" };

// Create new FileInfo object and get the Length.
	FileInfo f = new FileInfo(fileName);
	long s1 = f.Length;

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sachiekCommented:
In your junk code you can also add a condition..

 for (int fPtr = 0; fPtr < FileCount; fPtr++)
            {
                string nextFile = FilesToRead[fPtr];

                bool b = File.Exists(nextFile);

                if (b == True)
               {
                       string[] lines = System.IO.File.ReadAllLines((nextFile);
               }

            }

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Howard BashSenior Software EngineerAuthor Commented:
I created a c:\temp folder in it and put a text file named text.txt.

I executed this code:
string curFile = @"c:\temp\test.txt";
Console.WriteLine(File.Exists(curFile) ? "File exists." : "File does not exist.");

And File does not exist was written to console.
Howard BashSenior Software EngineerAuthor Commented:
Since File.Exists says no file,  getting it's length shouldn't work, no?
sachiekCommented:
Check if permission issue. Try to give full read and write access to temp folder.

Next which user account .net application using..check and try give access to temp folder.
Howard BashSenior Software EngineerAuthor Commented:
FileReadCrash2.jpgThis is my local machine.  I checked permissions on the temp folder (which I created for this test) and the folder gives users:
Karrtik IyerSoftware ArchitectCommented:
Can you close your visual studio and try running it under elevated permissions(right click on visual studio and run as administrator) and give this code a try?
Howard BashSenior Software EngineerAuthor Commented:
Good thought, but nope.
Jacques Bourgeois (James Burger)PresidentCommented:
What is that little blue dot icon over the file icon in your first screenshot. I do not remember ever seeing something like it on a .txt file. Could it be that some application plays tricks with that file?
käµfm³d 👽Commented:
Do you have file extensions hidden? If so, perhaps the filename in questions is actually "foo.txt.txt". I've done that on a few occasions. If your file extensions are hidden, try un-hiding them to see if the extension is what you think it is.

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Najam UddinCommented:
Just a thought, do you have file extension hidden in windows? I am asking because I want to make sure your file is not "C:\mycode\datafiles\foo.txt.txt"
Howard BashSenior Software EngineerAuthor Commented:
The icon is for text files (sometimes) in windows 10.  Here is the property of the file I am attempting to read:

FileReadCrash3.jpg


FileReadCrash4.jpg
käµfm³d 👽Commented:
What output do you get if you make the following call in the Immediate Window:

?System.IO.Directory.GetFiles(@"C:\mycode\datafiles")

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Howard BashSenior Software EngineerAuthor Commented:
Indeed I was hiding the file extensions and that was all of it.  By doing a getfiles and looking at the return I saw the extra .txt.  I then unhide the known extensions and there they were!!!

Thanks folks!!!
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