table 里面控件的遍历问题 无法识别table的 ID..................... 进来看看

public void SaveFUC()
    {
        //创建动态增加数组
        ArrayList AL = new ArrayList();
        foreach (Control C in  tabFU.Controls)//tabFU 无法识别      
        {
            if (C.GetType().ToString() == "System.Web.UI.HtmlControls .HtmlTableRow ")
            {
                HtmlTableCell HTC = (HtmlTableCell)C.Controls[0];
                foreach (Control FUC in HTC.Controls)
                {
                    //判断该控件是否为上传控件是则添加到ArrayList中
                    if (FUC.GetType().ToString() == "System .Web.UI.WebControls.FileUpload ")
                    {
                        FileUpload FU = (FileUpload)FUC;
                        AL.Add(FU);
                    }
                }
            }
        }
        //将ArrayList中的控件添加到缓存中
      Session.Add("FilesControls", AL);

    }