Question

I have an app that recurses through a drive and outputs files that have “invalid” characters. Now that I have to put a UI to it, i’m a bit confused.

Prior to this being a WinForm app, the code was (mind you, this STARTED as a Console App):

class Program
{
    public static void Main(string[] args)
    {


        //recurse through files.  Let user press 'ok' to move onto next step        
        string[] files = Directory.GetFiles(@"S:\bob.smith\", "*.*", SearchOption.AllDirectories);
        foreach (string file in files)
        {
            Console.Write(file + "\r\n");
        }
        Console.WriteLine("Press any key to continue...");
        Console.ReadKey(true);
        //End section


        //Regex -- find invalid chars
        string pattern = " *[\\~#%&*{}/<>?|\"-]+ *";
        string replacement = " ";
        Regex regEx = new Regex(pattern);

        string[] fileDrive = Directory.GetFiles(@"S:\bob.smith\", "*.*", SearchOption.AllDirectories);
        List<string> filePath = new List<string>();

        //clean out file -- remove the path name so file name only shows

        foreach(string fileNames in fileDrive)
        {
        filePath.Add(fileNames);
        }

        using (StreamWriter sw = new StreamWriter(@"S:\bob.smith\File_Renames.txt"))
        {
            //Sanitize and remove invalid chars  
            foreach (string Files2 in filePath)
            {
                try
                {
                    string filenameOnly = Path.GetFileName(Files2);
                    string pathOnly = Path.GetDirectoryName(Files2);
                    string sanitizedFilename = regEx.Replace(filenameOnly, replacement);
                    string sanitized = Path.Combine(pathOnly, sanitizedFilename);
                    sw.Write(sanitized + "\r\n");
                    System.IO.File.Move(Files2, sanitized);

                }
                //error logging
                catch(Exception ex)
                {
                    StreamWriter sw2 = new StreamWriter(@"S:\bob.smith\Error_Log.txt");
                    sw2.Write("ERROR LOG");
                    sw2.WriteLine(DateTime.Now.ToString() + ex + "\r\n");
                    sw2.Flush();
                    sw2.Close();

                }
            }
        }

    }

Now that i have to implement a UI, i was hoping to populate a ListView with file names that contain invalid characters. I ONLY want to display those files that need to be renamed — not all files like it’s doing now. How do i do this and have it list these files in the ListView? Anybody have any syntax that might help?

Answer 1

foreach(string fileNames in fileDrive)
{
    if(regex.IsMatch(fileNames)) //check that it has invalid characters
    {
        filePath.Add(fileNames);
        yourListView.Items.Add(fileNames); //Add the string to your list view
    }
}