FileInfo.CopyTo Method (String)
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Copies an existing file to a new file, disallowing the overwriting of an existing file.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- destFileName
- Type: System.String
The name of the new file to copy to.
| Exception | Condition |
|---|---|
| ArgumentException | destFileName is empty, contains only white spaces, or contains invalid characters. |
| IOException | An error occurs, or the destination file already exists. |
| SecurityException | The caller does not have the required permission. |
| ArgumentNullException | destFileName is Nothing. |
| UnauthorizedAccessException | A directory path is passed in, or the file is being moved to a different drive. |
| DirectoryNotFoundException | The directory specified in destFileName does not exist. |
| PathTooLongException | 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. |
| NotSupportedException | destFileName contains a colon (:) in the middle of the string. |
Version Notes
Windows Phone
This member has a SecurityCriticalAttribute attribute. This attribute restricts this member to internal use. Application code that uses this member throws a MethodAccessException.