DevExpress下拉多選框 CheckComboboxEdit、CheckedListBoxControl

CheckComboboxEdit

         

          //清空項
            checkedComboBoxEdit1.Properties.Items.Clear();

            //自定義數組
            string[] strs=new string[]{"新建","審批中","已完成","已撤銷"};
            //添加項
            checkedComboBoxEdit1.Properties.Items.AddRange(strs);

            //設置選中狀態
            if(checkedComboBoxEdit1.Properties.Items.Count>0){
                //設置選中狀態
                checkedComboBoxEdit1.Properties.Items[strs[0]].CheckState = CheckState.Checked;
                //設置選項是否可用
                checkedComboBoxEdit1.Properties.Items[strs[0]].Enabled = false;
            }
            //取值
            checkedComboBoxEdit1.EditValue.ToString();
            //獲取各項值 放在List集合中
            List<object> List = checkedComboBoxEdit1.Properties.Items.GetCheckedValues();

            //注意 當取得值是多項時，各項之間的間隔是 英文狀態下 逗號+空格
            //轉換方法
            string result = checkedComboBoxEdit1.EditValue.ToString().Replace(", ", ",");

            //是否顯示 肯定、取消按鈕
            checkedComboBoxEdit1.Properties.ShowButtons = false;
            //是否顯示 取消按鈕
            checkedComboBoxEdit1.Properties.ShowPopupCloseButton = false;

            //下拉顯示項的個數 (設置爲下拉個數加1正好能夠顯示所有，由於有一行是全選項)
            checkedComboBoxEdit1.Properties.DropDownRows = checkedComboBoxEdit1.Properties.Items.Count + 1;

CheckedListBoxControl

        

          //自定義一個表
            DataTable dt = new DataTable();
            dt.Columns.Add("ID");
            dt.Columns.Add("Name");
            dt.Columns.Add("Sex");
            for (int i = 0; i < 30; i++) {
                DataRow dr = dt.NewRow();
                dr["ID"] = i + 1;
                dr["Name"]=Convert.ToString((char)(65+i))+Convert.ToString((char)(65+i));
                dr["Sex"] = i % 2==0?"男":"女";
                dt.Rows.Add(dr);
            }
            //清空項
            checkedListBoxControl1.Items.Clear();

            //綁定
            checkedListBoxControl1.DataSource = dt;
            checkedListBoxControl1.ValueMember = "ID";
            checkedListBoxControl1.DisplayMember = "Name";

            //全選
            //checkedListBoxControl1.CheckAll();

            //項的個數
            int itemCount = checkedListBoxControl1.ItemCount;

            //添加項（若是設置綁定，添加項無效）
            checkedListBoxControl1.Items.Add("kk");

            //設置選中狀態、顯示值、實際值、是否可用（若是設置綁定，這些將會無效）
            checkedListBoxControl1.Items[0].CheckState = CheckState.Checked;
            checkedListBoxControl1.Items[0].Description = "顯示值";
            checkedListBoxControl1.Items[0].Value = "實際值";
            checkedListBoxControl1.Items[0].Enabled = false;
            //效果和上面同樣
            checkedListBoxControl1.SetItemChecked(0, true);
            checkedListBoxControl1.SetItemCheckState(0, CheckState.Checked);
            checkedListBoxControl1.SetItemValue("實際值",0);           

            //是否被勾選
           bool isChecked=  checkedListBoxControl1.GetItemChecked(0);
            //獲取某項狀態
           string checkState = checkedListBoxControl1.GetItemCheckState(0).ToString();
            //獲取某項綁定值 valueMember
           string trueValue = checkedListBoxControl1.GetItemValue(0).ToString();
            //獲取某項顯示值   displayMember
           string disValue = checkedListBoxControl1.GetDisplayItemValue(0).ToString();
           string disValue2 = checkedListBoxControl1.GetItemText(0);

            //是否點擊一次 就改變狀態
           checkedListBoxControl1.CheckOnClick = true;

            //是否多列顯示
           checkedListBoxControl1.MultiColumn = true;

            //checkedListboxControl 是否得到焦點
           bool isfocus=checkedListBoxControl1.ContainsFocus;

           //實現單選功能
            checkedListBoxControl1.SelectedIndexChanged += new EventHandler(checkedListBoxControl1_SelectedIndexChanged);
          
            //獲取選中項的綁定值（前提：手動添加的能夠獲取，可是datatable綁定的沒法獲取）
           List<object> objList = checkedListBoxControl1.Items.GetCheckedValues();

       void checkedListBoxControl1_SelectedIndexChanged(object sender, EventArgs e)
        {
            int index=checkedListBoxControl1.SelectedIndex;
            for (int i = 0; i < checkedListBoxControl1.ItemCount; i++) {
                if (i != index)
                {
                    checkedListBoxControl1.SetItemChecked(i, false);
                }
            }
        }

 

#region public static void SetComboBoxData(DevExpress.XtraEditors.ImageComboBoxEdit comboBox,List<T> list, string valueMember, string displayMember, string selectedText = null)
        /// <summary>
        /// 綁定下拉框 /// </summary>
        /// <param name="comboBox">下拉控件</param>
        /// <param name="List<T> ">實體集合</param>
        /// <param name="valueMember">值字段</param>
        /// <param name="displayMember">顯示字段</param>
        /// <param name="selectedText">默認選中的值</param>
        public static void SetComboBoxData<T>(DevExpress.XtraEditors.ImageComboBoxEdit comboBox, List<T> list, string valueMember, string displayMember, string selectedText = null)//  { comboBox.Properties.TextEditStyle = DevExpress.XtraEditors.Controls.TextEditStyles.DisableTextEditor; comboBox.Properties.NullText = string.Empty; foreach (var item in list) { comboBox.Properties.Items.Add(new ImageComboBoxItem(item.GetType().GetProperty(valueMember).GetValue(item, null).ToString(), item.GetType().GetProperty(valueMember).GetValue(item, null).ToString())); } // //這裏是設置默認選中的值
            if (!string.IsNullOrEmpty(selectedText)) { comboBox.SelectedItem = comboBox.Properties.Items.GetItem(selectedText); } } #endregion

 

 http://www.cnblogs.com/spring_wang/archive/2013/05/11/3072640.html

 

https://blog.csdn.net/xiaoyu812289718/article/details/43017755

https://blog.csdn.net/u013816709/article/details/48159309