Question

I am doing an exercise where I need to find a string in a group of files.

I manage to find the string selecting each file individually.
How can I do the same selecting all files at once.

openFileDialog.Multiselect = true;
DialogResult result = openFileDialog.ShowDialog();
string filename = openFileDialog.SafeFileName;
FileStream fs = new FileStream(filename, FileMode.Open, FileAccess.Read);
BufferedStream bs = new BufferedStream(fs);

StreamReader sr = new StreamReader(fs);
String s;
if (result == DialogResult.OK)
{
    while ((s = sr.ReadLine()) != null)
    {
        if(s.Contains("Specified string"))
        {
            MessageBox.Show(filename + " Contains the Specified string");
            break;
        }
    }

}
fs.Close();
sr.Close();

Answer 1

OpenFileDialog has properties (FileNames, SafeFileNames) that return all selected files.