"Not a Path?" is not working

[OnlyOne]

Hello,

i added a simple example vi where i have a path-control and a "Not-a-Number/Path/Refnum?" and as output a boolean.

The boolean should be false if the path is correct and true if the path is invalid.

Then i insert as path the value "c:\abc|||def.txt". When i run the vi then the path is valid.

But this is not a valid name in Windows so why is it displayed as valid? I cant create a file manually in with this name.

Thanks for any help

[smercurio_fc]

This is a frequently asked question. See here. In other words it tells whether it's a path, not whether it's valid or not.

[RavensFan]

The vertical bar or "pipe" symbol can't be used in filenames, but it is a valid character within a command or "DOS" enviroment.  You could use it as "type c:\myfile.txt | more" and that would pipe the myfile.txt through the more program a page at a time.

Also, I believe the function just checks whether what you have could be a path.  Not whether it is a valid or invalid path.

The function is called "Not a Path" rather than "Not a Valid Path"

[OnlyOne]

So what do i have to insert in the path-control that the boolean becomes true?

[smercurio_fc]

This is also a frequently asked question. See, for example, here.

[OnlyOne]

I mean the path-control in my example where i use the "Not a path".

I saw the other examples how to solve it. But i still want to know for what i can use the "Not a path"-thing.

[F._Schubert]

Not a path is the Tag <Not a path> and can be found under File-I/O -> path constants as a Not A Path Contant.vi

Several file vis will also return that constant if cancelled (file dialog) or an error occures. 

Felix