绑定HashTable到RadioButtonList

针对列表控件中每一项都有key和value，可以使用HashTable来完成数据的绑定
关键代码如下：

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;
using System.Collections;
using System.Data.SqlClient;

public partial class _Default : System.Web.UI.Page 
{
    protected void Page_Load(object sender, EventArgs e)
    {
        InitData();
    }

    private Hashtable GetHashTable()
    {
        SqlConnection conn = new SqlConnection();

        conn.ConnectionString = "server=.;database=northwind;uid=sa;pwd=sa";

        conn.Open();

        SqlCommand cmd = new SqlCommand("select CategoryID,CategoryName from Categories",conn);

        SqlDataAdapter sda = new SqlDataAdapter();

        sda.SelectCommand = cmd;

        SqlDataReader dr = cmd.ExecuteReader();

        Hashtable ht = new Hashtable();
        .
        while (dr.Read())
        {
            string strKey = dr.GetSqlValue(0).ToString();

            string strValue = dr.GetSqlValue(1).ToString();

            if (strValue.StartsWith("C"))

                continue;

            ht.Add(strKey,strValue);
        }

        conn.Close();

        return ht;
    }

    private void InitData()
    {
        Hashtable ht = this.GetHashTable();

        foreach (DictionaryEntry de in ht)
        {
            ListItem item = new ListItem(de.Value.ToString(),de.Key.ToString());

            RadioButtonList1.Items.Add(item);
        }
    }
}

转载于:https://www.cnblogs.com/JemBai/archive/2009/02/16/1391837.html