Hi All,

I have a method that returns a string if there is no file in a directory. I have stepped through this and watched this line get set to an empty string but when it comes back to the calling line of code, it is null. I am missing something and wonder if it is the way I did the while statement. Any ideas appreciated.
Thanks for the help
Tim

When the return from PopQueue is set to "" then in my while statement the value of fileName is null. Why would this be?

while ((fileName = this.PopQueue(path, filter)) != "" && llSuccess)
{
    // Do all my stuff here, process each file returned until no more files are returned.
}


private string PopQueue(string path, string filter)
{
    try
    {
        DirectoryInfo directory = new DirectoryInfo(path);
        FileInfo[] files = directory.GetFiles(filter);
        this.FilesInQueue = files.Length;

        foreach (FileInfo file in files)
        {
            // Verify this file isn't in the deleteList already
            if (deleteFileList.Contains(file.Name) == false)
            {
                return file.Name;
            }
            else
            {
                this.DeleteDataFile(path, file.Name);
            }
        }
    }
    catch (DirectoryNotFoundException)
    {
        // Need to try to recover the directory & or re-create it.
    }
    catch (Exception ex)
    {
        EventLogger.LogException(ex);
    }
    // When the directory is empty, return an empty string.		
    return "";
}