Panel控件遍历问题

Question

我在前台有         <asp:Panel ID="CommodityType" runat="server" CssClass="comtype" >        </asp:Panel> 后台动态添加控件         DataSet xmlcomtype = new DataSet();        xmlcomtype.ReadXml(Server.MapPath(@"~/XML/CommodityType.xml"));        foreach(DataRow drtype in xmlcomtype.Tables[0].Rows)        {            CheckBox cb = new CheckBox();            cb.Text = drtype["Type"].ToString();            CommodityType.Controls.Add(cb);        } 后台遍历控件         foreach (Control c in CommodityType.Controls)        {            if (c.GetType().ToString().Equals("System.Web.UI.WebControls.CheckBox"))            {                CheckBox cb = (CheckBox)c;                if (cb.Checked)                    ct.CommodityType += "," + cb.Text;            }        }        if (!string.IsNullOrEmpty(ct.CommodityType))            ct.CommodityType = ct.CommodityType.Substring(1); 怎么我遍历不出控件的,输出控件数量  ClientScript.RegisterStartupScript(GetType(), "message", "<script>alert('" + CommodityType .Controls.Count.ToString()+ "');</script>"); 输出值为1 但是我后台添加了好几个控件了 求帮忙

Answer 1

晕，给你一个Winform的例子。我项目中实际用的，你照着比就可以了。

        /// <summary>
        /// 清除容器里面某些控件的值
        /// </summary>
        /// <param name="parContainer">容器控件</param>
        public static void ClearCntrValue(Control parContainer)
        {
            for (int index = 0; index < parContainer.Controls.Count; index++)
            { 
                //如果是容器类控件，递归调用自己
                if (parContainer.Controls[index].HasChildren)
                {
                    ClearCntrValue(parContainer.Controls[index]);
                }
                else
                {
                    switch (parContainer.Controls[index].GetType().Name)
                    { 
                        case "Label":
                            break;
                        case "ComboBox":
                            ((ComboBox)(parContainer.Controls[index])).Text = "";
                            break;
                        case "TextBox":
                            ((TextBox)(parContainer.Controls[index])).Text = "";
                            break;
                        case "RichTextBox":
                            ((RichTextBox)(parContainer.Controls[index])).Text = "";
                            break;
                        case "MaskedTextBox":
                            ((MaskedTextBox)(parContainer.Controls[index])).Text = "";
                            break;
                        case "RadioButton":
                            ((RadioButton)(parContainer.Controls[index])).Checked = false;
                            break;
                        case "CheckBox":
                            ((CheckBox)(parContainer.Controls[index])).Checked = false;
                            break;
                    }
                }
            }
        }