GridView里面添加了一个RadioButtonList不显示

Question

GridView添加了RadioButtonList模板列
GridView的数据源在后台绑定然后不显示RadioButtonList为什么呢？？覆盖了？？因为只有数据源一列数据 怎么给GridView的某一列绑定数据源呢？？？

Answer 1

--前台<asp:GridView ID="GridView1" runat="server" 
            onrowdatabound="GridView1_RowDataBound">
        <Columns>
            <asp:TemplateField>
                <ItemTemplate>
                    <asp:RadioButtonList ID="rbl1" runat="server"></asp:RadioButtonList>
                </ItemTemplate>
            </asp:TemplateField>
        </Columns>
        </asp:GridView>--后台,其中SQLHelper是数据操作类文件，替换为自已操作数据库的实现就可以了，表ST,S换为你的表public partial class WebForm10 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!Page.IsPostBack)
            {
                this.DataBind();
            }
        }
        protected void DataBind()
        {
            string sql = "select * from ST";
            DataTable dt = SQLHelper.ExecuteDataTable(SQLHelper.ConStr, CommandType.Text, sql);
            this.GridView1.DataSource = dt;
            this.GridView1.DataBind();
        }        protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
        {
            if (e.Row.FindControl("rbl1") != null)
            {
                DataTable dt = SQLHelper.ExecuteDataTable(SQLHelper.ConStr, CommandType.Text, "select top 2 Sno,Sname from S");
                RadioButtonList rbl = e.Row.FindControl("rbl1") as RadioButtonList;
                rbl.DataSource = dt;
                rbl.DataValueField = "Sno";
                rbl.DataTextField = "Sname";
                rbl.DataBind();
            }
        }
    }