How can I create a temp file with a specific extension with .NET?

by

Guaranteed to be (statistically) unique:

string fileName = System.IO.Path.GetTempPath() + Guid.NewGuid().ToString() + ".csv";

(To quote from the wiki article on the probabilty of a collision:

…one’s annual risk of being hit by a
meteorite is estimated to be one
chance in 17 billion [19], that means
the probability is about 0.00000000006
(6 × 10−11), equivalent to the odds of
creating a few tens of trillions of
UUIDs in a year and having one
duplicate. In other words, only after
generating 1 billion UUIDs every
second for the next 100 years, the
probability of creating just one
duplicate would be about 50%. The
probability of one duplicate would be
about 50% if every person on earth
owns 600 million UUIDs

EDIT: Please also see JaredPar’s comments.

More Related Contents:

  1. Is there a way to check if a file is in use?
  2. Easiest way to read from and write to files
  3. Nested using statements in C#
  4. How to change the timeout on a .NET WebClient object
  5. How to find the most recent file in a directory using .NET, and without looping?
  6. Best way to resolve file path too long exception
  7. Better way to check if a Path is a File or a Directory?
  8. C# – Get a list of files excluding those that are hidden
  9. Mirroring console output to a file
  10. How to get files in a relative path in C#
  11. Why does Path.Combine not properly concatenate filenames that start with Path.DirectorySeparatorChar?
  12. How to remove a single Attribute (e.g. ReadOnly) from a File?
  13. How to insert characters to a file using C#
  14. How do I get the directory from a file’s full path?
  15. Check if an executable exists in the Windows path
  16. Read random line from a file? c#
  17. Getting files by creation date in .NET
  18. Delete files older than 3 months old in a directory using .NET
  19. Encrypt SQLite database in C#
  20. C# Searching for files and folders except in certain folders
  21. Deserialize JSON into C# dynamic object?
  22. Should I avoid ‘async void’ event handlers?
  23. What is [Serializable] and when should I use it?
  24. Passing a single item as IEnumerable
  25. ZipArchive creates invalid ZIP file
  26. SMTP and OAuth 2
  27. What’s a good way of doing string templating in .NET?
  28. Merge cells in datagridview
  29. Prevent Winforms Designer from Generating Property Values for Inherited Controls
  30. Detect if non DPI-aware application has been scaled/virtualized

Leave a Comment