LabelPlus.ToolStripButtonGroup.setButtonChecked C# (CSharp) Method

        internal void setButtonChecked(ToolStripButton btn)
        {
            foreach (ToolStripButton buttonN in myToolStripButtonList)
            {
                buttonN.Checked = false;
            }

            btn.Checked = true;
            selectedButtonIndex = GetButtonIndex(btn);

            OnIndexChanged();
        }