C# 7: Toolbar

private void mainToolBarClicked(Object sender,
                        ToolBarButtonClickEventArgs e)
{
    switch (mainToolBar.Buttons.IndexOf(e.Button))
    {
        case 0:
            MessageBox.Show("Add New file code here");
            break;
        case 1:
            OpenFileDialog openDlg = new OpenFileDialog();
            if (DialogResult.OK == openDlg.ShowDialog())
            {
                string fileName = openDlg.FileName;
                MessageBox.Show(fileName);
            }
            break;
        case 2:
            SaveFileDialog saveDlg = new SaveFileDialog();
            if (DialogResult.OK == saveDlg.ShowDialog())
            {
                string fileName = saveDlg.FileName;
                MessageBox.Show(fileName);
            }
            break;
        case 3:
            PrintDialog printDlg = new PrintDialog();
            printDlg.ShowDialog();  
            break;
        case 4:
            this.Close();  
            break;
    }
}



To show tool tips edit in the properties
ToolTipText.text = "Cut"