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);
}
}
}
关键代码如下:


































































