为DataGrid列添加Radio（单选框）列

来源：互联网发布：淘宝中国质造质量好吗编辑：程序博客网时间：2024/05/16 14:53

经常看到论坛上有人问在DataGrid中如何实现单选，下面就是一种实现的方法。

查看例子

&lt;％@ Page Language=&quot;C#&quot; AutoEventWireup=&quot;True&quot; EnableViewState = &quot;true&quot;％&gt;&lt;％@ Import Namespace=&quot;System.Data&quot; ％&gt;&lt;html&gt;＜script runat=&quot;server&quot;&gt;DataTable Cart;DataView CartView;ICollection CreateDataSource(){DataTable dt = new DataTable();DataRow dr;dt.Columns.Add(new DataColumn(&quot;IntegerValue&quot;, typeof(Int32)));dt.Columns.Add(new DataColumn(&quot;StringValue&quot;, typeof(string)));dt.Columns.Add(new DataColumn(&quot;CurrencyValue&quot;, typeof(double)));for (int i = 0; i &lt; 101; i++){dr = dt.NewRow();dr[0] = i;dr[1] = &quot;Item &quot; + i.ToString();dr[2] = 1.23 * (i+1);dt.Rows.Add(dr);}DataView dv = new DataView(dt);return dv;}void Page_Load(Object sender, EventArgs e){string js = &quot;&quot;;js+=&quot;＜script＞/r/n&quot;;js+=&quot;function ld(){/r/n&quot;;js+=&quot;for(i=0;i&lt;document.getElementsByName('RadioName').length;i++)/r/n&quot;;js+=&quot;if(document.getElementsByName('RadioName')[i].value==&quot;;js+=&quot;document.getElementById('&quot; + rd.ClientID + &quot;').value) &quot;;js+=&quot;document.getElementsByName('RadioName')[i].checked=true/r/n&quot;;js+=&quot;}/r/n&quot;;js+=&quot;window.onload=ld/r/n&quot;;js+=&quot;&lt;/&quot;+&quot;script＞/r/n&quot;;this.RegisterStartupScript(&quot;js&quot;,js);if (!IsPostBack){ItemsGrid.DataSource = CreateDataSource();ItemsGrid.DataBind();}}void Grid_Change(Object sender, DataGridPageChangedEventArgs e){ItemsGrid.CurrentPageIndex = e.NewPageIndex;ItemsGrid.DataSource = CreateDataSource();ItemsGrid.DataBind();}void btnClick(Object sender, EventArgs e){if(Request.Form[&quot;RadioName&quot;] != null){rd.Value = Request.Form[&quot;RadioName&quot;].ToString();Label1.Text = &quot;您所选择的是：&lt;font color=red&gt;&quot; + Request.Form[&quot;RadioName&quot;].ToString() +&quot;&lt;/font&gt;&quot;;}}&lt;/script＞&lt;body&gt;&lt;form runat=&quot;server&quot; id=MM&gt;&lt;input type=&quot;hidden&quot; id=rd runat=server/&gt;＜asp:DataGrid id=&quot;ItemsGrid&quot; runat=&quot;server&quot;BorderColor=&quot;black&quot; BorderWidth=&quot;1&quot;CellPadding=&quot;3&quot; AllowPaging=&quot;true&quot;AutoGenerateColumns=&quot;false&quot;OnPageIndexChanged=&quot;Grid_Change&quot;&gt;&lt;HeaderStyle BackColor=&quot;#00aaaa&quot;&gt;&lt;/HeaderStyle&gt;&lt;PagerStyle Mode=&quot;NumericPages&quot;&gt;&lt;/PagerStyle&gt;&lt;Columns&gt;＜asp:TemplateColumn&gt;&lt;ItemTemplate&gt;&lt;input type=radio name=&quot;RadioName&quot; value='&lt;％# DataBinder.Eval(Container.DataItem, &quot;IntegerValue&quot;)％&gt;'/&gt;&lt;/ItemTemplate&gt;＜/asp:TemplateColumn&gt;＜asp:BoundColumn HeaderText=&quot;数字列&quot; DataField=&quot;IntegerValue&quot;/&gt;＜asp:BoundColumn HeaderText=&quot;字符串列&quot; DataField=&quot;StringValue&quot;/&gt;＜asp:BoundColumn HeaderText=&quot;货币列&quot; DataField=&quot;CurrencyValue&quot; DataFormatString=&quot;{0:c}&quot;&gt;&lt;ItemStyle HorizontalAlign=&quot;right&quot;&gt;&lt;/ItemStyle&gt;＜/asp:BoundColumn&gt;&lt;/Columns&gt;＜/asp:DataGrid&gt;&lt;br&gt;＜asp:Button id=&quot;Btn&quot; Text=&quot;看你选择的&quot; OnClick=&quot;btnClick&quot; runat=&quot;server&quot;/&gt;＜asp:Label id=&quot;Label1&quot; Text=&quot;&quot; runat=&quot;server&quot;/&gt;&lt;/form&gt;&lt;/body&gt;&lt;/html&gt;