How to Fix the 'File Path Too Long' Exception in Windows?

How to Overcome "File Path Too Long" Exception

This exception occurs when file paths exceed the maximum character limit, typically 260 for Windows. To resolve this issue, consider the following:

Understanding the Limit

As explained in Microsoft's documentation, Windows imposes a maximum path length of 260 characters. This includes the drive letter, colon, backslashes, and any directory or file names.

Workarounds

To overcome this limitation, several workarounds are available:

1. Share Subfolders

Share a subfolder within the root directory, effectively shortening the overall path length.

2. Assign Drive Letter Using SUBST

Use the SUBST command in the command prompt to assign a drive letter to a folder within the root directory, reducing the path length.

3. Assign Drive Letter Using AddConnection

In Visual Basic, use the AddConnection method to map a path to a drive letter, shortening the path length for file access.

Code Example

In your code, you can implement this workaround by modifying the following line:

var filepath = System.IO.Path.Combine(CurrentDirectory, ofile.Url);

To:

var filepath = System.IO.Path.Combine(CurrentDirectory + "\temp", ofile.Url);

By creating a temporary subfolder under the CurrentDirectory and combining the path in this way, you can shorten the overall path length by moving the subdirectory closer to the root directory.

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