SharePoint: Using MoveTo method with special characters in CSOM returns error

Question

Hi,

when I'm trying to move a file to a subsite which has special characters (for example emoji) in the name, CSOM returns this error : The file or folder name "something" contains invalid characters. Please use a different name. Common invalid characters include following: # % * : < > ? / |

Does anyone have any idea how to solve it?

BR,

Answer 1

Hi @sahar fiuzati hagh ,
I feel regretful to inform you that it turns out to be a by-design one.
This means in the file name, it has some invalid characters which SharePoint files not supported, you could check the official document for more detailed information:
Invalid file names and file types in OneDrive, OneDrive for Business, and SharePoint

We are also unable to get create a folder which name contains " * : < > ? / \ |

The only way to solve it is to replace " * : < > ? / \ | to valid characters.

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Answer 2

This isn't really a full answer, but I hope it will help. It looks like Microsoft added a new type, Microsoft.SharePoint.Client.ResourcePath to the Client Object Model to help with special characters in file and folder names. I'm not sure if this also applies to special characters in site URLs.

Supporting % and # in files and folders with the ResourcePath API

It looks like they also added a method to move a file that takes a ResourcePath as a parameter.

File.MoveToUsingPath(ResourcePath, MoveOperations) Method

I did a quick search but was unable to find any additional information on the use of Microsoft.SharePoint.Client.ResourcePath or File.MoveToUsingPath.

Again, I hope this helps you solve your issue.