private void ShowSubMenu(MaterialFlatButton btnSender, MaterialContextMenuStrip submenu)
{
Point ptLowerLeft = new Point(10, (btnSender.Height + 10));
ptLowerLeft = btnSender.PointToScreen(ptLowerLeft);
submenu.Show(ptLowerLeft);
}
private void leftSideMenu_Click(object sender, EventArgs e)
{
materialContextStrip.Items.Clear();
materialContextStrip.Items.Add("Profile Management");
materialContextStrip.Items.Add("User Setting");
materialContextStrip.Items.Add("User Help Menu");
materialContextStrip.Items.Add("User Sign Out");
materialContextStrip.ItemClicked += this.materialContextStrip_ItemClicked;
materialContextStrip.Show(leftSideMenu, new Point(0, leftSideMenu.Height));
}