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Question

响应一个combox选择事件就ok了嘛，写了个简单的测试程序：
         String[] items1 = new string[] { "a", "b", "c" };
        String[] items2 = new string[] { "aa", "bb", "cc" };        private void miSelectedChanged(object sender, EventArgs e)
        {
            String value = (string)comboBox1.SelectedItem;            comboBox2.Items.Clear();            if(value == "a")
            {
                foreach(String ii in items2)
                {
                    comboBox2.Items.Add(ii);
                }            }else if(value == "b")
            {
                comboBox2.Items.Add("bb");
            }else if(value == "c")
            {
                comboBox2.Items.Add("cc");
            }
        }        private void Init()
        {
            foreach (String str in items1)
            {
                comboBox1.Items.Add(str);
            }
        }        private void miOnLoad(object sender, EventArgs e)
        {
            Init();
        }