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.
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Howard BashSenior Software EngineerAuthor Commented:
Since File.Exists says no file,  getting it's length shouldn't work, no?
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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.
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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:
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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?
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Howard BashSenior Software EngineerAuthor Commented:
Good thought, but nope.
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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?
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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"
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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
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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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