遍历页面中的控件

 1  StringBuilder str = new StringBuilder();
 2         foreach (Control ctr in this.Page.Controls[3].Controls)
 3         {
 4             if (ctr.GetType().Name == "CheckBox")
 5             {
 6                 CheckBox cb = (CheckBox)ctr;
 7                 if (cb.Checked)
 8                     str.Append(cb.Text + "<br/>");
 9             }
10         }
11         Literal1.Text = str.ToString();