ListBox，CheckBoxList，DropDownList，RadioButtonList的常见数据绑定

ListBox，CheckBoxList，DropDownList，RadioButtonList的常见用法

四个都是选择控件，用法大同小异，基本都是指定键值对：

直接加选择项：

 void way1()

   {

    DropDownList1.Items.Add("c#");

    DropDownList1.Items.Add("vb");

    DropDownList1.Items.Add("c");

    DropDownList1.Items.Add("java");

    ListBox1.Items.Add("c#");

    ListBox1.Items.Add("VB");

    ListBox1.Items.Add("C++");

    ListBox1.Items.Add("JAVA");

    CheckBoxList1.Items.Add("c#");

    CheckBoxList1.Items.Add("VB");

    CheckBoxList1.Items.Add("javascript");

    CheckBoxList1.Items.Add("php");

    RadioButtonList1.Items.Add("asp");

    RadioButtonList1.Items.Add("php");

    RadioButtonList1.Items.Add("jsp");

    RadioButtonList1.Items.Add("ajax");

   }

哈斯表法：

void way2()

   {

    Hashtable ht=new Hashtable();

    ht.Add("","c#");

    ht.Add("","C++");

    ht.Add("","php");

    ht.Add("","CGI");

    this.DropDownList2.DataSource=ht;

    DropDownList2.DataTextField="Value";

    DropDownList2.DataValueField="Key";

    DropDownList2.DataBind();

    this.ListBox2.DataSource=ht;

    ListBox2.DataTextField="value";

    ListBox2.DataValueField="key";

    ListBox2.DataBind();

    this.CheckBoxList2.DataSource=ht;

    CheckBoxList2.DataTextField="value";

    CheckBoxList2.DataValueField="key";

    CheckBoxList2.DataBind();

    this.RadioButtonList2.DataSource=ht;

    RadioButtonList2.DataTextField="value";

    RadioButtonList2.DataValueField="key";

    RadioButtonList2.DataBind();

   }

SortedList方法：

   void way3()

   {

    SortedList s1=new SortedList();

    s1.Add("","haha");

    s1.Add("","hehe");

    s1.Add("","xixi");

    s1.Add("","heihei");

    this.DropDownList3.DataSource=s1;

    DropDownList3.DataTextField="value";

    DropDownList3.DataValueField="key";

    DropDownList3.DataBind();

   }

用数据对象dataread方法：

void way4()

   {

    OleDbConnection cn=new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+Server.MapPath("sailing.mdb")+";Persist Security Info=False");

    cn.Open();

    OleDbCommand cmd=new OleDbCommand();

    cmd.Connection=cn;

    cmd.CommandText="select RoleName,RoleID from Role";

    OleDbDataReader dr=cmd.ExecuteReader();

    while(dr.Read())

    {

     ListItem li=new ListItem(dr[].ToString(),dr[].ToString());

     this.ListBox4.Items.Add(li);

    }

    dr.Close();

    cn.Close();

   }

用数据集法：

     OleDbConnection cn=new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+Server.MapPath("sailing.mdb")+";Persist Security Info=False");

     cn.Open();

     OleDbCommand cmd=new OleDbCommand();

     cmd.Connection=cn;

     cmd.CommandText="select RoleName,RoleID from Role";

     OleDbDataAdapter adp=new OleDbDataAdapter(cmd);

     DataSet ds=new DataSet();

     adp.Fill(ds);

     this.CheckBoxList4.DataSource=ds.Tables[];

     this.CheckBoxList4.DataTextField=ds.Tables[].Columns[].ToString();

     this.CheckBoxList4.DataValueField=ds.Tables[].Columns[].ToString();

     this.CheckBoxList4.DataBind();

还有一种数组法：

<%@ Page Language="C#" AutoEventWireup="True" %>

<Script language="C#" runat="server">

void Page_Load(Object Sender,EventArgs e){

ArrayList array=new ArrayList();

array.Add("Windows");

array.Add("Linux");

array.Add("unix");

CheckBox_1.DataSource=array;

CheckBox_1.DataBind();

RadioList_1.DataSource=array;

RadioList_1.DataBind();

}

</Script>

<form id="Form_1" runat="server">

<ASP:checkboxList ID="CheckBox_1" runat="server"/>

<input id="Button_1" type="Button" value="CheckButton" runat="server"/>

<asp:radiobuttonlist ID="RadioList_1" runat="server"/>

<input id="Button_2" type="Button" value="RadioButton" runat="server"/>

</form>