C# temporary file path

Dave, Good article, thanks. Create and GetTempFileName both create a file? My understanding is that GetTempFileName creates a 0-byte file when called. Please advise — it would be cool if it works…. Yes you are right about the GetTempFileName creating a 0-byte file however this should still work because the File.

Create function will actually create or overwrite the given file name. So from what I can understand the file created by Path.

GetTempFileName is overwritten again with the same file name. Hi Dave, thank you for this insights about temporary files under. I will integrate your code into my current project on codeplex credits. Dave thanks for going over using temporary files.

This article and your other one about multi-threading really helped me out. Great blog. Hi Dave… Nice article. I have a doubt. I have converted excel. According to my requirement, I should not store that.

But I need to read the data from the csv file, which I have converted. So, is there any concept like in-memory to store it and read the data from that file….? Please let me know, if my question is not clear. Both approaches work as far as I can tell. However with my tests both ways worked. Hi, There s some problem occuring due to insecure temporary files..

Temporary; Console. AppendText tmpFile ; streamWriter. WriteLine "Hello from www. Flush ; streamWriter. Close ; Console. OpenText tmpFile ; Console. ReadToEnd ; myReader. Creates a uniquely named, zero-byte temporary file on disk and returns the full path of that file.

This method creates a temporary file with a. TMP file extension. The temporary file is created within the user's temporary folder, which is the path returned by the GetTempPath method.

The GetTempFileName method will raise an IOException if it is used to create more than files without deleting previous temporary files.

To resolve this error, delete all unneeded temporary files. The leading period is included in the result. Note GetExtension handles extensions of 4 letters. It also handles the case where a file name has more than one period in it. Here This program briefly tests GetExtension. The period is part of the extension string returned. The "path root" is the volume name and its trailing separator. This can be used in Path. Combine to build up full paths.

GetDirectoryName example. We often need to get the directory name from a string path. The root, and the folder name are returned, without a trailing slash. Path syntax.

A verbatim string uses the prefix character " ". In it, only one backslash is needed. String Literal. Sometimes we have 2 or more parts, and want to merge them into a complete path. Combine handles certain cases where we have directory separators in different positions. Arguments The arguments to Path. Combine are parts of a path. These can be the volume name, a directory name, or a file name. Sometimes programs use random file names.

If we need to write a temp file and the path is not important, use Path. This returns temporary file names. They point to a "Temp" folder in the User folder. This program shows the result of GetTempPath. Note GetTempPath has a separator character on the end. GetDirectoryName meanwhile does not. Note 2 With Path. Combine, we can reliably concatenate a file name with the temporary path received.

Cache The result of GetTempPath is usually constant throughout program execution. It is safe to cache it. This eliminates allocations. There are 2 properties for separators. These help us develop code that is understandable.