Creating temporary files on Windows using C# .NET

It’s trivial to create a temporary file using the Path class in .NET. Let’s first see how to find the path to the current user’s temp folder:

string tempFolderPath = Path.GetTempPath();

In my case it returns C:\Users\andras.nemes\AppData\Local\Temp\ which is the same as the value of the TEMP environment variable at the user level on my PC.

The Path class also has a method to create a temporary file with a random name in the Temp folder:

string randomTempFileName = Path.GetTempFileName();

…which at the time of running the code gave C:\Users\andras.nemes\AppData\Local\Temp\tmp19E6.tmp. The file was created with no actual content:

Temporary file created by Path class

Read all posts dedicated to file I/O here.

About Andras Nemes
I'm a .NET/Java developer living and working in Stockholm, Sweden.

3 Responses to Creating temporary files on Windows using C# .NET

  1. Brian Dead Rift Webb says:

    Reblogged this on Brian By Experience.

  2. Abraham says:

    hi, im using asp mvc with c#, i been used Path.GetTempPath before and its worked fine, but now, I get D:\local\Temp instead my local temp folder (AppData\Local\Temp). Do you know fix that?

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