[DevExpress]TreeListLookUpEdit带checkbox之经典运用

上代码：

public partial class TreeListLookUpEdit : DevExpress.XtraEditors.XtraForm
    {

        private string _KeyName;
        public string KeyName
        {
            get { return lblKeyName.Text; }
            set { lblKeyName.Text = value; }
        }
        private string _KeyID;

        public string KeyID
        {
            get { return lblKeyID.Text; }
            set { lblKeyID.Text= value; }
        }
        public TreeListLookUpEdit()
        {
            InitializeComponent();
        }
        private void TreeListLookUpEdit_Load(object sender, EventArgs e)
        {
        }

        protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            if (DesignMode) return;
            txtRole.Properties.TreeList.OptionsView.ShowCheckBoxes = true;
            txtRoleBind();
            DefaultChecked("3");
            GetSelectedRoleIDandName();