private void AddPath_Click(object sender, EventArgs e)
{
folderBrowserDialog1.ShowDialog(); //this dialog will allow the user to select a folder path
//possibly get an array of file names?
int index = dataGridView1.Rows.Add(); //index will store the index of the newly created row
dataGridView1.Rows[index].Cells[0].Value = folderBrowserDialog1.SelectedPath; //Cells[0] is okay here, to hard-code, because only excluded paths should be displayed, only that column. Though this could be edited later on.
//The .NET given folder browser is amazing. I tested it on network folder paths
//and other variations that I could think of.
}