File.Open Method (String, FileMode)
Assembly: mscorlib (in mscorlib.dll)
'Declaration Public Shared Function Open ( _ path As String, _ mode As FileMode _ ) As FileStream
- Type: System.String
The file to open.
path is a zero-length string, contains only white space, or contains one or more invalid characters as defined by GetInvalidPathChars.
path is Nothing.
The specified path, file name, or both exceed the system-defined maximum length. For example, on Windows-based platforms, paths must be less than 248 characters, and file names must be less than 260 characters.
The specified path is invalid, (for example, it is on an unmapped drive).
An I/O error occurred while opening the file.
path specified a file that is read-only.
This operation is not supported on the current platform.
path specified a directory.
The caller does not have the required permission.
mode specified an invalid value.
The file specified in path was not found.
path is in an invalid format.