protected override void CreateChildControls()
        {
            if (this.Field != null && this.ControlMode != SPControlMode.Display)
            {
                if (!this.ChildControlsCreated)
                {
                    CustomDropDownList field = this.Field as CustomDropDownList;
                    base.CreateChildControls();
                    /*
                    MultiLookupPicker = (GroupedItemPicker)TemplateContainer.FindControl("MultiLookupPicker");
                   
                    BuildAvailableItems(ref MultiLookupPicker);

                    SelectCandidate = (SPHtmlSelect)TemplateContainer.FindControl("SelectCandidate");
                    SelectResult = (SPHtmlSelect)TemplateContainer.FindControl("SelectResult");

                    AddButton = (HtmlButton)TemplateContainer.FindControl("AddButton");
                    RemoveButton = (HtmlButton)TemplateContainer.FindControl("RemoveButton");
                    */

                    left_box = (ListBox)TemplateContainer.FindControl("LeftBox");
                    if (left_box.Attributes["done"] == null)
                    {
                        BuildAvailableItems(ref left_box);
                    }
                    right_box = (ListBox)TemplateContainer.FindControl("RightBox");
                    add_button = (Button)TemplateContainer.FindControl("AddButton");
                    add_button.Click += new EventHandler(add_button_Click);
                    remove_button = (Button)TemplateContainer.FindControl("RemoveButton");
                    remove_button.Click += new EventHandler(remove_button_Click);
                }
            }
        }

        protected override void CreateChildControls()
        {
            CustomersList = new ListBox();
            CustomersList.Rows = 4;

            Controls.Add(CustomersList);
        }

 public McmsWebQuestion(string strId, bool bRequired, string strRequiredText, string strQuestion, string strControlBase, RepeatDirection rdLayout, string[] strResponses)
     : base(strId, "mcms", bRequired, strRequiredText, strQuestion)
 {
     this.m_listBox = new ListBox();
     this.m_checkBoxList = new CheckBoxList();
     this.m_listControl = null;
     if (strControlBase == "checkbox")
     {
         this.m_checkBoxList.RepeatDirection = rdLayout;
         this.m_listControl = this.m_checkBoxList;
     }
     else
     {
         this.m_listBox.SelectionMode = ListSelectionMode.Multiple;
         this.m_listControl = this.m_listBox;
     }
     foreach (string text in strResponses)
     {
         this.m_listControl.Items.Add(new ListItem(text));
     }
     this.m_listControl.ID = "lst_" + strId;
     this.Controls.Add(this.m_listControl);
     if (bRequired)
     {
         ListControlValidator child = new ListControlValidator();
         child.EnableClientScript = false;
         child.Text = strRequiredText;
         child.Display = ValidatorDisplay.Dynamic;
         child.ControlToValidate = this.m_listControl.ID;
         this.Controls.Add(child);
     }
     this.Controls.Add(new LiteralControl("</p>"));
 }

        private void SortListBox(ListBox list_box)
        {
            ArrayList ListBoxArray = new ArrayList();

            int i = 0;

            while (i < list_box.Items.Count)
            {

                ListBoxArray.Add(list_box.Items[i].Text);

                ++i;

            }

            list_box.Items.Clear();

            ListBoxArray.Sort();

            i = 0;

            while (ListBoxArray.Count > i)
            {

                list_box.Items.Add(ListBoxArray[i].ToString());

                ++i;

            }
        }

		public static void SelectListItem(ListBox listbox, string selectedValue)
		{
			bool foundListItem = false;

			foreach (ListItem item in listbox.Items)
			{
				if (item.Value == selectedValue)
				{
					foundListItem = true;
					item.Selected = true;
				}
				else
				{
					item.Selected = false;
				}
			}

			if (foundListItem == false)
			{
				ListItem item = new ListItem(selectedValue, selectedValue);
				item.Selected = true;

				listbox.Items.Add(item);
			}
		}

        public void CarregarListas(ListBox listaTodos, ListBox listaAdicionados)
        {
            try
            {
                this.listaTodos = new ListBox();

                foreach (ListItem item in listaTodos.Items)
                {
                    lstListaTodos.Items.Add(new ListItem(item.Text, item.Value));
                    this.listaTodos.Items.Add(new ListItem(item.Text, item.Value));
                }

                foreach (ListItem item in listaAdicionados.Items)
                    lstListaAdicionados.Items.Add(new ListItem(item.Text, item.Value));

                ExcluirItensIguais();

                OrdenarLista(lstListaTodos);
                OrdenarLista(lstListaAdicionados);
            }
            catch (Exception)
            {
                throw;
            }
        }

        private void _loadTemplates(ListBox list, string scriptType)
        {
            string path = IO.SystemDirectories.Umbraco + "/scripting/templates/" + scriptType + "/";
            string abPath = IO.IOHelper.MapPath(path);
            list.Items.Clear();

            // always add the option of an empty one
            list.Items.Add(scriptType == "cshtml"
                               ? new ListItem("Empty template", "cshtml/EmptyTemplate.cshtml")
                               : new ListItem("Empty template", ""));

            if (System.IO.Directory.Exists(abPath))
            {
                string extension = "." + scriptType;

                //Already adding Empty Template as the first item, so don't add it again
                foreach (System.IO.FileInfo fi in new System.IO.DirectoryInfo(abPath).GetFiles("*" + extension).Where(fi => fi.Name != "EmptyTemplate.cshtml"))
                {
                    string filename = System.IO.Path.GetFileName(fi.FullName);

                    var liText = filename.Replace(extension, "").SplitPascalCasing().ToFirstUpperInvariant();
                    list.Items.Add(new ListItem(liText, scriptType + "/" + filename));
                }
            }
        }

		private void Page_Load(object sender, System.EventArgs e) 
		{
			HtmlForm frm  = (HtmlForm)FindControl("Form1");
			GHTTestBegin(frm);
			foreach (Type currentType in TestedTypes)
				ListControl_ClearSelection(currentType);
      

			// Clearing multiple selected items:
			// This cannot be tested in ListControl, because only ListBox can have multiple selection.
			GHTSubTestBegin("Clear multiple selection");
			System.Web.UI.WebControls.ListBox lb = new System.Web.UI.WebControls.ListBox();
			GHTActiveSubTest.Controls.Add(lb);
			try 
			{
				lb.Items.Add("A");
				lb.Items.Add("B");
				lb.Items.Add("C");
				lb.Items.Add("D");
				lb.SelectionMode = ListSelectionMode.Multiple;
				lb.Items[0].Selected = true;
				lb.Items[1].Selected = true;
				lb.Items[2].Selected = true;
				lb.ClearSelection();
			}
			catch (Exception ex) 
			{
				GHTSubTestUnexpectedExceptionCaught(ex);
			}
			GHTSubTestEnd();

			GHTTestEnd();

		}

 public void AddInfo(TextBox txtBox, ListBox listBox, AddDelegate addMethod, GetDelegate getMethod)
 {
     string txt = txtBox.Text;
     int addCount = 0;
     DataSet ds;
     if (txt != "")
     {
         addCount = addMethod(txt);
         if (addCount <= 0)
         {
             MsgBox("该值已存在！");
         }
     }
     else
     {
         MsgBox("不能添加空值！");
     }
     listBox.Items.Clear();
     txtBox.Text = "";
     ds = getMethod();
     for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
     {
         listBox.Items.Add(ds.Tables[0].Rows[i][0].ToString());
     }
     txtBox.Focus();
 }

 public static void PopulateListBoxFromDelimitedString(ListBox listBox, String s)
 {
     foreach (var item in s.Split(";".ToCharArray(), StringSplitOptions.RemoveEmptyEntries))
       {
     var parts = item.Split(",".ToCharArray());
     listBox.Items.Add(new ListItem(parts[0], parts[1]));
       }
 }

 public static String GetListBoxItemsAsDelimitedString(ListBox listBox)
 {
     return
     listBox.Items
     .Cast<ListItem>()
     .Select(li => li.Text + "," + li.Value)
     .Join(";");
 }

 //所有权限
 private void CreatelstAccount(ListBox listcontrol, int PermissionCategoryId)
 {
     Johnny.CMS.BLL.Access.Permission bll = new Johnny.CMS.BLL.Access.Permission();
     listcontrol.DataSource = bll.GetList(PermissionCategoryId);
     listcontrol.DataTextField = "PermissionName";
     listcontrol.DataValueField = "PermissionId";
     listcontrol.DataBind();
 }

 //所有菜单栏目
 private void CreateAllItems(ListBox listcontrolleft)
 {
     Johnny.CMS.BLL.SystemInfo.MenuCategory bll = new Johnny.CMS.BLL.SystemInfo.MenuCategory();
     listcontrolleft.DataSource = bll.GetList();
     listcontrolleft.DataTextField = "MenuCategoryName";
     listcontrolleft.DataValueField = "MenuCategoryId";
     listcontrolleft.DataBind();
 }

 public void ListBindToData(ListBox lb, DataTable dt, string dataTextField, string dataValueField)
 {
     lb.Items.Clear();
     lb.DataSource = dt;
     lb.DataTextField = dataTextField;
     lb.DataValueField = dataValueField;
     lb.DataBind();
 }

        /// <summary>
        /// Initializes a new instance of the <see cref="Adf.Web.UI.DropDownListItem"/> class with the specified label and drop-down list.
        /// </summary>
        /// <param name="label">The <see cref="System.Web.UI.WebControls.Label"/> that defines display text of the drop-down list within <see cref="Adf.Web.UI.BasePanelItem"/>.</param>
        /// <param name="listBox">The <see cref="System.Web.UI.WebControls.DropDownList"/> that defines the control which will be added into <see cref="Adf.Web.UI.BasePanelItem"/>.</param>
        public ListBoxItem(Label label, ListBox listBox)
        {
            ListBox = listBox;

            _labelControls.Add(label);

            _itemControls.Add(listBox);
        }

        public void TextArray()
        {
            var lb = new ListBox();
            lb.Items.Add("abc");
            lb.Items.Add("def");
            var arr = lb.GetTextsArray();

            Assert.AreEqual(arr.Length, 2);
        }

 private static void SelectNextAvailableItemInListBox(ListBox listBox, Int32 previousSelectedIndex)
 {
     if (listBox.Items.Count == 0)
     return;
       else if (listBox.Items.Count == previousSelectedIndex)
     listBox.SelectedIndex = listBox.Items.Count - 1;
       else
     listBox.SelectedIndex = previousSelectedIndex;
 }

 public string[] getListBoxItems(ListBox lb_covit)
 {
     string[] arr = new string[lb_covit.Items.Count];
     for (int i = 0; i < lb_covit.Items.Count; i++)
     {
         arr[i] = lb_covit.Items[i].ToString();
     }
     return arr;
 }

		private void MoveBetween(ListBox from, ListBox to)
		{
			while(from.SelectedItem != null)
			{
				ListItem selected = from.SelectedItem;

				from.Items.Remove(selected);
				to.Items.Add(selected);
			}
		}

        protected string[] GetSelected(ListBox lb)
        {
            var strArr = "";
            foreach(ListItem li in lb.Items)
            {
               if(li.Selected) strArr+=li.Value + ",";
            }

            return strArr.Split(new string[] { "," }, StringSplitOptions.RemoveEmptyEntries);
        }