谁来帮我看看取radiobutton的值呀

Question

RadioButtonList是用来做单选用途的吧。

Answer 1

页面回发了以后，你动态创建的RadioButtonList就没了

Answer 2

那我该如何取出radionbotton的值 呢

Answer 3

using System;
using System.Data;
using System.Configuration;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;public partial class _Default : System.Web.UI.Page 
{
    RadioButtonList[] dch = new RadioButtonList[4];
    protected void Page_Load(object sender, EventArgs e)
    {        if (!IsPostBack)
        {
           
        } 
        for (int i = 0; i < 4; ++i)
            {
                RadioButtonList rdl = new RadioButtonList();
                rdl.ID = "rdl" + i.ToString();
                rdl.RepeatDirection = RepeatDirection.Horizontal;
                for (int j = 0; j < 3; ++j)
                {
                    rdl.Items.Add(new ListItem(j.ToString()));
                }
                dch[i] = rdl;
                form1.Controls.Add(rdl);
            }    }
    protected void Button1_Click(object sender, EventArgs e)
    {        for (int i = 0; i < dch.Length; i++)
        {
            RadioButtonList rad = (RadioButtonList)(this.FindControl(dch[i].ID.ToString()));
            if (rad.SelectedValue != null)
            {
                Response.Write(rad.SelectedItem);
            }
        }
    }    
}
把动态创建控件的代码放到 if (!IsPostBack) 外