RadioButton置于DataList实现单选

本例实现通过RadioButton对DataList控件进行单选。你可以参考下面演示。

准备好一个星座对象，并定义好一个泛型List来存储每一个星座名称。

Constelltion.cs

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;



/// <summary>

/// Summary description for Constellation

/// </summary>

namespace Insus.NET

{

    public class Constellation

    {

        private int _ID;

        private string _Name;



        public int ID

        {

            get { return _ID; }

            set { _ID = value; }

        }

        public string Name

        {

            get { return _Name; }

            set { _Name = value; }

        }



        public Constellation()

        {

            //

            // TODO: Add constructor logic here

            //

        }



        public Constellation(int id, string name)

        {

            this._ID = id;

            this._Name = name;

        }



        public List<Constellation> GetConstellation()

        {

            List<Constellation> constellation = new List<Constellation>();



            Constellation c = new Constellation(1, " 白羊座");

            constellation.Add(c);



            c = new Constellation(2, "金牛座");

            constellation.Add(c);



            c = new Constellation(3, "双子座");

            constellation.Add(c);



            c = new Constellation(4, "巨蟹座");

            constellation.Add(c);



            c = new Constellation(5, "狮子座");

            constellation.Add(c);



            c = new Constellation(6, "处女座");

            constellation.Add(c);



            c = new Constellation(7, "天秤座 ");

            constellation.Add(c);



            c = new Constellation(8, "天蝎座");

            constellation.Add(c);



            c = new Constellation(9, "射手座");

            constellation.Add(c);



            c = new Constellation(10, "摩羯座");

            constellation.Add(c);



            c = new Constellation(11, "水瓶座");

            constellation.Add(c);



            c = new Constellation(12, "双鱼座");

            constellation.Add(c);



            return constellation;

        }

    }

}

在.aspx拉一个DataList控件，把RadioButton置于DataList的ItemTemplate模版内。

View Code

 <asp:DataList ID="DataListConstellation" runat="server" Width="100" CellPadding="0" CellSpacing="0">

                <ItemStyle BorderWidth="1" />

                <ItemTemplate>

                    <table>

                        <tr>

                            <td>

                                <asp:RadioButton ID="RadioButtonSelect" runat="server" onclick="SelectedRadio(this);" /></td>

                            <td><%# Eval("ID") %></td>

                            <td><%# Eval("Name") %></td>

                        </tr>

                    </table>

                </ItemTemplate>

            </asp:DataList>

在.aspx.cs内为DataList控件绑定数据：

View Code

using System;

using System.Collections.Generic;

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

{

    Constellation objConstellation = new Constellation();

    

    protected void Page_Load(object sender, EventArgs e)

    {

        if (!IsPostBack)

            Data_Binding();

    }



    private void Data_Binding()

    {

        this.DataListConstellation.DataSource = objConstellation.GetConstellation();

        this.DataListConstellation.DataBind();

    }

}

最后，我们写一段Javascript来实现onclick 事件。

View Code

 <script type="text/javascript">

        function SelectedRadio(rb) {

            var gv = document.getElementById("<%=DataListConstellation.ClientID%>");

            var rbs = gv.getElementsByTagName("input");



            var row = rb.parentNode.parentNode;

            for (var i = 0; i < rbs.length; i++) {

                if (rbs[i].type == "radio") {

                    if (rbs[i].checked && rbs[i] != rb) {

                        rbs[i].checked = false;

                        break;

                    }

                }

            }

        }

    </script>