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Caleb
Caleb asked in Computers & InternetProgramming & Design · 4 years ago

Does System.IO.File.WriteAllLines() overwrite the target file if it already exists?

e.g. you have it set for C:/Users/Public/Documents/writefile.txt, but writefile.txt already exists. Does it overwrite writefile.txt and make a new one based on its own arguments?

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  • slash
    4 years ago

    Yes, it does. This function creates a new file, writes all lines to the file, and then closes the file.

  • no1home2day
    Lv 7
    4 years ago

    Yes it does. It is the programmer's responsibility to check to see if the file already exists, and if so, warn the user and ask the user if the program should continue and overwrite the target file.

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