遍历DataList控件

//设置按钮样式
        for (int i = 0; i < DataList1.Items.Count;i++ )
        {                        
            foreach (Control c in DataList1.Items[i].Controls)
            {                
                if (c is LinkButton)
                {
                    LinkButton lb = (LinkButton)c;
                    if(lb.ToolTip==Session["Module"].ToString())
                        DataList1.Items[i].CssClass = "main_menu_selected";
                }
            }                
        }