Copies the file represented by a file info to a destination writable file info.
Syntax
Parameters
- fileInfo
- The file info object that will perform the operation.
The value of this parameter cannot be null
(Nothing
in Visual Basic).
- destinationWritableFileInfo
- The writable file info into which the file will be copied.
The value of this parameter cannot be null
(Nothing
in Visual Basic).
Return Value
Returns the number of bytes copied.
Exceptions
Exception | Description |
System.ArgumentNullException |
A null reference (Nothing in Visual Basic) is passed to a method that does not accept it as a valid argument.
This is a usage error, i.e. it will never occur (the exception will not be thrown) in a correctly written program. Your code should not catch this exception. |
System.IO.DirectoryNotFoundException |
Part of a file or directory cannot be found.
This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately. |
System.IO.FileNotFoundException |
An attempt to access a file that does not exist on disk has failed.
This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately. |
System.IO.IOException |
An I/O error has occurred.
This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately. |
System.NotSupportedException | An invoked method is not supported at all, or is not supported with the parameters used to create the object. |
System.IO.PathTooLongException |
A path or fully qualified file name is longer than the system-defined maximum length.
This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately. |
System.Security.SecurityException |
A security error was detected.
This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately. |
System.UnauthorizedAccessException |
The operating system has denied access because of an I/O error or a specific type of security error.
This is an operation error that depends on factors external to your program, and thus cannot be always avoided. Your code must handle it appropriately. |
Requirements
Target Platforms: .NET Framework: Windows 10 (selected versions), Windows 11 (selected versions), Windows Server 2016, Windows Server 2022; .NET: Linux, macOS, Microsoft Windows
See Also