CODEWITHSUNDEEP
c#
eetawil
eetawil

Reputation: 1717

C# Deleting Files - IOException handling

In reference to Deleting All Files how can we handle IO.Exceptions to quietly "skip" those files that the delete can't do? Should we use a try/catch or is there something built-in?

Looks like a simple question but I'm actually having trouble finding a solution for it on the net...

Upvotes: 0

Views: 140

Answers (3)

Patrick Hofman
Patrick Hofman

Reputation: 157136

Of course. To update the code from the original answer by John Hartsock:

public void DeleteDirectoryFolders(DirectoryInfo dirInfo, bool ignoreIfFailed = false){
    foreach (DirectoryInfo dirs in dirInfo.GetDirectories()) 
    {
        try
        {
            dirs.Delete(true); 
        }
        catch (IOException)
        {
            if (!ignoreIfFailed)
            {
                throw;
            }
        }
    } 
}

public void DeleteDirectoryFiles(DirectoryInfo dirInfo, bool ignoreIfFailed = false) {
    foreach(FileInfo files in dirInfo.GetFiles()) 
    { 
        try
        {
            files.Delete(); 
        }
        catch (IOException)
        {
            if (!ignoreIfFailed)
            {
                throw;
            }
        }
    } 
}

public void DeleteDirectoryFilesAndFolders(string dirName, bool ignoreIfFailed = false) {
  DirectoryInfo dir = new DirectoryInfo(dirName); 
  DeleteDirectoryFiles(dir, ignoreIfFailed);
  DeleteDirectoryFolders(dir, ignoreIfFailed);
}

You can call it like this:

DeleteDirectoryFilesAndFolders(folder, true); // ignore on error

DeleteDirectoryFilesAndFolders(folder, false); // throw exception

DeleteDirectoryFilesAndFolders(folder); // throw exception

Upvotes: 1

H. Mahida
H. Mahida

Reputation: 2366

try:

       public void DeleteDirectoryFiles(DirectoryInfo dirInfo) 
              {
                  foreach(FileInfo files in dirInfo.GetFiles()) 
                      {
                         try
                            {
                            files.Delete(); 
                            }
                         catch(IOException ex)
                            {
                                  // code to handle
                            }
                      }

              }

Upvotes: 1

Dan Puzey
Dan Puzey

Reputation: 34218

The only way to handle an exception quietly would be a try catch with nothing in the catch block.

Be sure to only catch the exception you're expecting though (i.e., catch (IOException)) else you might mask some other problem that you weren't aware of.

Upvotes: 0

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