动态创建多个组合框代码隐藏&；在silverlight中通过wcf绑定值

这是我为动态生成控件而编写的代码：

private void GenCtrl(string type, int typeid,string sql)
            {
                string id = Convert.ToString(typeid);
            if (type == "TextBox")
                {// created for TextBox
                 }
           else if (type == "ComboBox")
                {
                  ComboBoxEdit  cb = new ComboBoxEdit();
                    cb.Name = "cb" + id; 
                 // this is to set unique id if more than 1 combobox created.

                   cb.Height = 20;
                    cb.Width = 100;
                    cb.Margin = new Thickness(2, 2, 0, 0);
                    cb.HorizontalAlignment = HorizontalAlignment.Left;
                    cb.Text = "Show All";
                    stctrl.Children.Add(cb);                       
                    ComboBoxEdit cbx = (ComboBoxEdit)cb.FindName(cb.Name);
                    cb.DisplayMember = "Name";

                    if(filsql !=null)
                    ServRef.GetComboBoxlistAsync(sql); //this would retrieve the list and attach to the combobox.

                    //ctlst.Add(cb.Name, type);
                }
}

//WCF服务参考

---

ServRef.GetComboBoxlistCompleted+=新事件处理程序（ServRef_getComboxListCompleted）；
void ServRef_GetComboxListCompleted（对象发送方，GetComboxListCompletedEventArgs e）
{
cb.ItemsSource=e.结果；
cb.SelectedIndex=0；
}

绑定两个combobox时我面临的问题是创建了例如：cb1，cb2（动态创建）只有控件cb2 combox，它是最新在ServRef_GetComboBoxlistCompleted方法中激活的。我无法绑定第一个控件（combobox）的值

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如果我的问题不清楚，请告诉我

我可以使用FindName找到

ComboBoxEdit cbx = (ComboBoxEdit)stackctrl.FindName(cb.Name);

ComboBoxEdit cbx = (ComboBoxEdit)stackctrl.FindName(cb.Name);