怎样给combobox添加项？该如何处理

怎样给combobox添加项？？？？？？？？？？？
combobox1.Items.Add()怎样可以添加文本和值 呢？

[解决办法]
有DisplayMember和ValueMember
[解决办法]
DisplayMember 属性 （用于显示）
ValueMember 属性 （值）
[解决办法]
凑合看看

C# code

 private void button2_Click(object sender, EventArgs e)        {            DataTable dt = new DataTable();            dt.Columns.Add("性别");            dt.Columns.Add("1/0");            DataRow dr = dt.NewRow();            dr["性别"] = "男";            dr["1/0"] = "1";            dt.Rows.Add(dr);            comboBox1.DataSource = dt;            comboBox1.DisplayMember="性别";            comboBox1.ValueMember= "1/0";            comboBox1.SelectedIndexChanged += new EventHandler(comboBox1_SelectedIndexChanged);        }        void comboBox1_SelectedIndexChanged(object sender, EventArgs e)        {            //throw new Exception("The method or operation is not implemented.");            MessageBox.Show(this.comboBox1.SelectedValue.ToString());        }
[解决办法]
尽管 ComboBox 通常用于显示文本项，您仍可向 ComboBox 添加任何对象。 

C# code
using System;using System.Windows.Forms;class Form1 : Form{  Form1()  {    ComboBox combobox1 = new ComboBox();    combobox1.Parent   = this;    combobox1.Items.Add(new Sex(1));   // 值为1，显示为 "男"    combobox1.Items.Add(new Sex(0));   // 值为0，显示为 "女"  }    static void Main()  {    Application.Run(new Form1());  }}struct Sex{  public int sex;    public Sex(int sex)  {    this.sex = sex;  }    public override string ToString()  {    return sex == 0 ? "女" : "男";  }}
[解决办法]
1、定义一个类
VB.NET code
Public Class cboTextValueItem    Private _text As String    Private _value As Integer    Public Sub New(ByVal text As String, ByVal value As Integer)        _text = text        _value = value    End Sub    Public Property Text() As String        Get            Return _text        End Get        Set(ByVal value As String)            _text = value        End Set    End Property    Public Property Value() As Integer        Get            Return _value        End Get        Set(ByVal value As Integer)            _value = value        End Set    End Property    [color=#FF0000]        '重要        Public Overrides Function ToString() As String        Return _text    End Function[/color]End Class
[解决办法]
C# code
           comboBox1.Items.Insert(0, new ComboBoxItem("0","请选择"));comboBox1.Items.Insert(1, new ComboBoxItem("1","根目录"));  internal class ComboBoxItem:Object        {            private string value;            private string text;            public ComboBoxItem(string _value, string _text)            {                value = _value;                text = _text;            }            public string Text            {                get { return text; }            }            public string Value            {                get { return value; }            }            public override string ToString()            {                return text;            }        }
[解决办法]
C# code
using System;using System.Windows.Forms;class Form1 : Form{  Form1()  {    ComboBox combobox1 = new ComboBox();    combobox1.Parent   = this;    combobox1.Items.Add(new Sex(1));   // 值为1，显示为 "男"    combobox1.Items.Add(new Sex(0));   // 值为0，显示为 "女"    combobox1.SelectedIndex = 0;        Button button1 = new Button();    button1.Parent = this;    button1.Text   = "看看选择了什么";    button1.Top    = 50;    button1.Width  = 120;    button1.Click += delegate    {      Sex selected = (Sex)combobox1.SelectedItem;      MessageBox.Show(string.Format("选择的值是：{0}\r\n显示为：{1}", selected.sex, selected));    };  }    static void Main()  {    Application.Run(new Form1());  }}struct Sex{  public int sex;    public Sex(int sex)  {    this.sex = sex;  }    public override string ToString()  {    return sex == 0 ? "女" : "男";  }}