Name​Collision​Option Name​Collision​Option Name​Collision​Option Enum


Specifies what to do if a file or folder with the specified name already exists in the current folder when you copy, move, or rename a file or folder.

public : enum class NameCollisionOptionpublic enum NameCollisionOptionPublic Enum NameCollisionOption
Windows 10 requirements
Device family
Windows 10 (introduced v10.0.10240.0)
API contract
Windows.Foundation.UniversalApiContract (introduced v1)


FailIfExists FailIfExists FailIfExists

Raise an exception of type System.Exception if the file or folder already exists.

Methods that don't explicitly pass a value from the NameCollisionOption enumeration use the FailIfExists value as the default when you try to create, rename, copy, or move a file or folder.

GenerateUniqueName GenerateUniqueName GenerateUniqueName

Automatically append a number to the base of the specified name if the file or folder already exists.

For example, if MyFile.txt already exists, then the new file is named MyFile (2).txt. If MyFolder already exists, then the new folder is named MyFolder (2).

ReplaceExisting ReplaceExisting ReplaceExisting

Replace the existing item if the file or folder already exists.