Question

I’m want to build an application in VC++ 2008 (Windows form application).

Here I want to browse a folder of my choice (push button “browse”), such that when I press the “scan” button my application will find all the files in the folder I chose, including subfolders. Then all files are placed in a listbox, I have this code will be in c# not in c++, how to change my code in c++?

private void btnScan_Click_1(object sender, EventArgs e)
    {

        List<string> search = Directory.GetFiles(folderBrowserDialog1.SelectedPath, "*.*", SearchOption.AllDirectories).ToList();
        progressBar1.Maximum = search.Count;
        //foreach (Directory.GetDirectories.search))

        foreach(string item in search)
        {
            try
             {
                StreamReader stream = new StreamReader(item);
                string read = stream.ReadToEnd();
                foreach(string st in viruslist)
                {
                if(Regex.IsMatch(read,st))
                {
                viruses+=1;
                    label1.Text+= viruses;
                    listBox1.Items.Add(item);
                }
                progressBar1.Increment(1);
                }

             }
             catch(Exception ex)
             {

             }
        }
    }

Answer 1

Since your have a .NET application ( since you are using Windows Forms) the easiest way is to use System::IO::Directory::GetFiles() list all of the files in a folder and all subfolders.

array<String^>^ files = GetFiles(folder, "*.*", System::IO::SearchOption::AllDirectories);

The AllDirectories option causes GetFiles to search for files in all sub folders.