怎么用一个循环找得所在页面上的TextBox控件（包括放在HtmlTable里面的）？？

Question

reference:
            ushort iTotal =0;
            System.Web.UI.WebControls.TextBox wCtrl ;
            foreach (Control ctrl in Page.Controls)
            {                if(ctrl.GetType().ToString().Equals("System.Web.UI.HtmlControls.HtmlForm"))
                {
                    foreach(Control tCtrl in ctrl.Controls )
                    {
                        if (tCtrl.GetType().ToString().Equals("System.Web.UI.WebControls.TextBox"))
                        {
                            wCtrl = (System.Web.UI.WebControls.TextBox)tCtrl;
                            try 
                            {iTotal += IsNumeric(wCtrl.Text) ? Convert.ToUInt16(wCtrl.Text) : Convert.ToUInt16(0);
                            }
                            catch 
                            {
                                iTotal = 0;
                                litError.Text = "<BR><FONT color=red size=+1>ERROR: Values too large. Please modify and try again</FONT><BR>";
                                break;
                            }                            
                        }
                    }
                }
            }
            litSum.Text  = iTotal.ToString();

Answer 1

可以通过递归来遍历：
private void GetSubControl(Control obj)
{
foreach (Control c in obj.Controls)
{
if (c is TextBox)
{
Response.Write(((TextBox)c).ID + "<br/>");
}
if (c.Controls.Count > 0)
{
this.GetSubControl(c);
}
}
}调用：
this.GetSubControl(this);