用Hashtable表绑定数据到下拉框、复选框列表、单选框列表、ListBox

  //前台

<asp:RadioButtonList ID="rb1" runat="server">
</asp:RadioButtonList>

<asp:DropDownList ID="ddlshe" runat="server" AutoPostBack="true" OnSelectedIndexChanged="ddlshe_SelectedIndexChanged">
</asp:DropDownList>
<br />
<asp:ListBox ID="lba" runat="server"></asp:ListBox>
<br />
<asp:CheckBoxList ID="cbl" runat="server">
</asp:CheckBoxList>

//后台：

SqlConnectionStringBuilder builder = new SqlConnectionStringBuilder();
builder.DataSource = ".";
builder.InitialCatalog = "MyDatas";
builder.IntegratedSecurity = true;
using (SqlConnection con = new SqlConnection(builder.ConnectionString))
{
con.Open();
SqlCommand cmd = new SqlCommand("select id,title from tb_forums", con);
using (SqlDataReader reader = cmd.ExecuteReader())
{
Hashtable ht = new Hashtable();

while (reader.Read())
{
ht.Add(reader["title"].ToString(), reader["title"].ToString());
}
ddlshe.Items.Clear();
lba.Items.Add("请选择");//ListBox
ddlshe.Items.Add("请选择"); //下拉框列表

rb1.Items.Add("请选择"); //单选框列表

cbl.Items.Add("请选择");//复选框列表
foreach (DictionaryEntry de in ht)
{
ListItem item = new ListItem(de.Value.ToString(), de.Key.ToString());
ddlshe.Items.Add(item);
lba.Items.Add(item);
cbl.Items.Add(item);
rb1.Items.Add(item);
}

}
}
}