combox的鍵值對應用： KeyValuePair

combox的item列表裏存在字符,如何將多個字符與序號0123。。。對應？
鍵值對  KeyValuePair<TKey, TValue> 就很好地幫咱們解決了問題。

舉個栗子：

private void Form1_Load(object sender, EventArgs e)
        {

            setComboxItemData(comboBox1,new int[]{0,1,2,3,4,5});
        }
 private void setComboxItemData(ComboBox cb, int[] data)
        {
            cb.DisplayMember="key";
            cb.ValueMember = "value";
            System.Diagnostics.Debug.Assert(cb.Items.Count==data.Length);
            List<KeyValuePair<string, int>> listItem= new List<KeyValuePair<string, int>>();;
            for (int i = 0; i < cb.Items.Count; i++)
            {

                  //KeyValuePair<string, int> Item = new KeyValuePair<string,int>(cb.Items[i].ToString(),data[i]);
                  //cb.Items[i] = Item;

                listItem.Add(new KeyValuePair<string,int>(cb.Items[i].ToString(), data[i]));

 } cb.DataSource = listItem; System.Diagnostics.Debug.Assert(cb.DataSource != null); } private void comboBox1_SelectedIndexChanged(object sender, EventArgs e) { KeyValuePair<string,int> key=(KeyValuePair<string,int>)(comboBox1.SelectedItem); int index = key.Value; string name = key.Key; }

這樣：在comboBox1的selected事件中 經過讀取選擇的item 就可知道選擇了第幾項