CheckedComboBoxEditExtension

public static class CheckedComboBoxEditExtension
    {
        public static void BindData(this CheckedComboBoxEdit control, IList<NameValue<string>> collection, bool isShowButtons = true)
        {
            if (collection == null)
                return;
            control.Properties.Items.Clear();
            control.Properties.ShowButtons = isShowButtons;
            control.Properties.NullText = null;
            control.Cursor = System.Windows.Forms.Cursors.Hand;
            foreach (var item in collection)
            {
                control.Properties.Items.Add(new CheckedListBoxItem(item.Value, item.Name, CheckState.Unchecked));
            }
            control.CustomDisplayText += (sender, e) =>
            {
                var selectedCount = control.Properties.GetCheckedItems().ToString().Replace(", ", ",").Split(',').ToList().Count;
                if (selectedCount == collection.Count)
                {
                    e.DisplayText = "全部";
                }
            };

        }

        public static void BindData(this CheckedComboBoxEdit control, IList<NameValue> collection, bool isShowButtons = true)
        {
            if (collection == null)
                return;
            control.Properties.Items.Clear();
            control.Properties.Items.Clear();
            control.Properties.ShowButtons = isShowButtons;
            control.Properties.NullText = null;
            control.Cursor = System.Windows.Forms.Cursors.Hand;
            foreach (var item in collection)
            {
                control.Properties.Items.Add(new CheckedListBoxItem(item.Value, item.Name, CheckState.Unchecked));
            }
            control.CustomDisplayText += (sender, e) =>
            {
                var selectedCount = control.Properties.GetCheckedItems().ToString().Replace(", ", ",").Split(',').ToList().Count;
                if (selectedCount == collection.Count)
                {
                    e.DisplayText = "全部";
                }
            };

        }
        public static void Clear(this CheckedComboBoxEdit control)
        {
            control.Properties.Items.Clear();
        }

        public static bool IsSelected(this CheckedComboBoxEdit control)
        {
            if (control.EditValue == null || control.EditValue.ToString().Equals(string.Empty))
            {
                return false;
            }
            return !control.EditValue.Equals("-999");
        }

        public static bool IsNotSelected(this CheckedComboBoxEdit control)
        {
            return !control.IsSelected();
        }

        /// <summary>
        /// 获取多选下拉框值List
        /// </summary>
        /// <param name="control"></param>
        /// <returns></returns>
        public static IList<string> GetCheckedValueLists(this CheckedComboBoxEdit control)
        {
            return control.Properties.GetCheckedItems().ToString().Replace(", ", ",").Split(new string[] { "，", "," }, StringSplitOptions.RemoveEmptyEntries).ToList();
        }
        /// <summary>
        /// 获取多选下拉框值,多个值用","连接 ;注意 当取得值是多项时，各项之间的间隔是 英文状态下 逗号+空格
        /// </summary>
        /// <param name="control"></param>
        /// <returns></returns>
        public static string GetCheckedValuestrs(this CheckedComboBoxEdit control)
        {
            return control.Properties.GetCheckedItems().ToString().Replace(", ", ",");
        }
    }