转摘：http://www.cnblogs.com/insus/archive/2013/01/22/2872203.html
开发要求，原本对CheckBoxList控件是用来让用户多选的。但现在特殊要求，这个CheckBoxList控件限制只能单选。
哈哈，看看Insus.NET做出来的效果：
为了你也能实现出来，可以参考下面的方法，第一是准备好一个对象“地支”（Terrestrial Branch）
1 TerrestrialBranch.cs 2 3 using System; 4 using System.Collections.Generic; 5 using System.Linq; 6 using System.Web; 7 8 /// <summary> 9 /// Summary description for TerrestrialBranch 10 /// </summary> 11 namespace Insus.NET 12 { 13 public class TerrestrialBranch 14 { 15 private int _ID; 16 private string _Name; 17 18 public int ID 19 { 20 get{return _ID;} 21 set { _ID = value; } 22 } 23 24 public string Name 25 { 26 get { return _Name; } 27 set { _Name = value; } 28 } 29 30 31 public TerrestrialBranch() 32 { 33 // 34 // TODO: Add constructor logic here 35 // 36 } 37 38 public TerrestrialBranch(int id, string name) 39 { 40 this.ID = id; 41 this._Name = name; 42 } 43 } 44 }
用数据填充这个对象，并用泛型List<t>来存储这十二个对象：
private List<TerrestrialBranch> GetData() { List<TerrestrialBranch> tbs = new List<TerrestrialBranch>(); tbs.Add(new TerrestrialBranch(1,"子")); tbs.Add(new TerrestrialBranch(2, "丑")); tbs.Add(new TerrestrialBranch(3, "寅")); tbs.Add(new TerrestrialBranch(4, "卯")); tbs.Add(new TerrestrialBranch(5, "辰")); tbs.Add(new TerrestrialBranch(6, "巳")); tbs.Add(new TerrestrialBranch(7, "午")); tbs.Add(new TerrestrialBranch(8, "未")); tbs.Add(new TerrestrialBranch(9, "申")); tbs.Add(new TerrestrialBranch(10, "酉")); tbs.Add(new TerrestrialBranch(11, "戌")); tbs.Add(new TerrestrialBranch(12, "亥")); return tbs; }
在.aspx页面拉一个CheckBoxList控件，设置两个属性RepeatColumns="6" RepeatDirection="Horizontal"
<asp:CheckBoxList ID="CheckBoxListTerrestrialBranch" runat="server" RepeatColumns="6" RepeatDirection="Horizontal"></asp:CheckBoxList>
把刚才准备好的List<TerrestrialBranch>绑定给这个CheckBoxList控件：
using System; using System.Collections.Generic; using System.Data; using System.Data.OleDb; using System.Linq; using System.Web; using System.Web.UI; using System.Web.UI.WebControls; using Insus.NET; public partial class _Default : System.Web.UI.Page { protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) Data_Binding(); } private void Data_Binding() { this.CheckBoxListTerrestrialBranch.DataSource = GetData(); this.CheckBoxListTerrestrialBranch.DataTextField = "Name"; this.CheckBoxListTerrestrialBranch.DataValueField = "ID"; this.CheckBoxListTerrestrialBranch.DataBind(); } }
OK,一切准备就绪，可以写Javascript脚本，放在<head>之内。
window.onload = function () { var cbl = document.getElementById('<%= CheckBoxListTerrestrialBranch.ClientID %>') var inputs = cbl.getElementsByTagName("input"); for (var i = 0; i < inputs.length; i++) { if (inputs[i].type == "checkbox") { inputs[i].onclick = function () { var cbs = inputs; for (var i = 0; i < cbs.length; i++) { if (cbs[i].type == "checkbox" && cbs[i] != this && this.checked) { cbs[i].checked = false; } } } } } }