How can I clear the content of a file

Question

I need to clear the contents of a particular file every time the applications starts  How do I do it

User · Answer

Try using something like  File Create     Creates or overwrites a file in the   specified path

User · Answer

Use FileMode Truncate everytime you create the file  Also place the File Create inside a try catch

User · Answer

You can use the File WriteAllText  method   System IO File WriteAllText   Path foo bar  string Empty

User · Answer

The simplest way to do this is perhaps deleting the file via your application and creating a new one with the same name    in even simpler way just make your application overwrite it with a new file

User · Answer

This is what I did to clear the contents of the file without creating a new file as I didn t want the file to display new time of creation even when the application just updated its contents   FileStream fileStream   File Open  lt path gt   FileMode Open           Set the length of filestream to 0 and flush it to the physical file        Flushing the stream is important because this ensures that    the changes to the stream trickle down to the physical file          fileStream SetLength 0   fileStream Close       This flushes the content  too

User · Answer

The easiest way is   File WriteAllText path  string Empty    However  I recommend you use FileStream because the first solution can throw UnauthorizedAccessException  using FileStream fs   File Open path FileMode OpenOrCreate  FileAccess ReadWrite          lock fs                   fs SetLength 0

[c#] How can I clear the content of a file?

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