ComboxEdit实现二级联动

 1 private void cmbXPROVINCE_SelectedIndexChanged(object sender, EventArgs e)
 2         {
 3             DataBind(cmbXPROVINCE, cmbXROAD);
 4         }
 5 
 6         /// <summary>
 7         /// 实现省、市
 8         /// </summary>
 9         /// <param name="cmbFirst">一级（区市）</param>
10         /// <param name="cmbSecond">二级（街道）</param>
11         public void DataBind(ComboBoxEdit cmbFirst, ComboBoxEdit cmbSecond)
12         {
13             switch (cmbFirst.Text.Trim())
14             {
15                 case "河南省":
16                     cmbSecond.Properties.Items.Clear();
17                     cmbSecond.Text = "";
18                     cmbSecond.Properties.Items.Add("郑州市");
19                     cmbSecond.Properties.Items.Add("开封市");
20                     cmbSecond.Properties.Items.Add("驻马店市");
21                     cmbSecond.Properties.Items.Add("安阳市");
22                     cmbSecond.Properties.Items.Add("洛阳市");
23                     cmbSecond.Properties.Items.Add("周口市");
24 
25                     break;
26                    
27                 case "河北省":
28                     cmbSecond.Properties.Items.Clear();
29                     cmbSecond.Text = "";
30                     cmbSecond.Properties.Items.Add("保定");
31                     cmbSecond.Properties.Items.Add("石家庄");
32                     cmbSecond.Properties.Items.Add("邯郸");
33                     break;
34                 //..........
35 
36                 default:
37                     break;
38             }
39         }