C#: check if file is Valid file path (not exist)
68020
How do I check if a given string is a legal/valid file name under Windows?
54502
Check if file is already open
97868
Checking for a file and whether it is readable and writable
127046
Checking if file is checked out through CSOM
12929
How can I determine file type without an extension on Windows?
44415
Getting / setting file owner in C#
73834
How does one test a file to see if it's a valid XML file before loading it with XDocument.Load()?
150261
Alternative to File.exists() in Java
16039
Using .NET, how can you find the mime type of a file based on the file signature not the extension
120236
Find all files that are NOT of a specific type/extension in folder?
54123
Check if file exists in C++
113311
Can I make `find` return non-0 when no matching files are found?
84393
See if file path is inside a directory
88179
how to get client side path of the uploded file
35245
How do I check if file exists in jQuery or pure JavaScript?
137876
Determining if file exists using c# and resolving UNC path
1949
How do I check whether a file exists without exceptions?