dev的CheckedComboBoxEdit下拉框控件设置成单选框

只需修改一个属性，写一个事件:

CheckedComboBoxEdit1.Properties.SelectAllItemVisible = false;//下拉框设置成不可全选

#region CheckedComboBoxEdit设置成单选框
        private void CheckedComboBoxEdit1_Popup(object sender, EventArgs e)
        {
            CheckedListBoxControl checkedListBoxControl = (sender as IPopupControl)?.PopupWindow.Controls.OfType().First().Controls.OfType().First();
 
            if (checkedListBoxControl != null)
            {
                checkedListBoxControl.ItemCheck -= checkedListBoxControl_ItemCheck;
                checkedListBoxControl.ItemCheck += checkedListBoxControl_ItemCheck;
            }
        }
        private void checkedListBoxControl_ItemCheck(object sender, DevExpress.XtraEditors.Controls.ItemCheckEventArgs e)
        {
            if (e.State == CheckState.Checked)
            {
                CheckedListBoxControl list = sender as CheckedListBoxControl;
                List items = new List();
                foreach (int index in list.CheckedIndices)
                {
                    if (index == e.Index) continue;
                    items.Add(list.Items[index]);
                }
                foreach (CheckedListBoxItem item in items)
                    item.CheckState = CheckState.Unchecked;
            }
        }
#endregion