Creating Click Events on Programmatically Added Menu Items?

Screenshot:

I populated the above menu in screenshot using below code, but silly me I can't figure out how can I create click event on each subitem since they don't have property name? :S My intention is to click, let say, "Do and Do", then the file will be opened using Process.Start(filename);. Please bear with me as I am very new to programming. :| Thank you so much!

private void loadViewTemplates(string path)
{
    foreach (string file in Directory.GetFiles(path, "*.txt"))
    {
        ToolStripItem subItem = new ToolStripMenuItem();
        subItem.Text = Path.GetFileNameWithoutExtension(file);
        viewTemplatesToolStripMenuItem.DropDownItems.Add(subItem);
    }
}