private void transportToolStripMenuItem_Click(object sender, EventArgs e)
{
transportToolStripDisplayed = !transportToolStripDisplayed;
this.SuspendLayout();
// Hide or show ToolStrip
_toolBarManager.ShowControl(transportToolStrip, transportToolStripDisplayed);
this.ResumeLayout();
}
// On "View->Main Tool bar" menu item click
private void mainBarViewItem_Click(object sender, System.EventArgs e)
{
ToolBarDockHolder holder = toolBarManager.GetHolder(mainToolBar);
toolBarManager.ShowControl(mainToolBar, !holder.Visible);
}