数据库表（X_Config）

    namespace AppBox
    {
        public class XConfigHelper
        {
            #region fields & constructor

            /// <summary>
            /// 缓存在内存
            /// </summary>
            private static XConfigCollection configs = new XConfigCollection();
            /// <summary>
            /// 载入所有的配置项
            /// </summary>
            static XConfigHelper()
            {
                ReloadColl();
            }
            /// <summary>
            /// 重新加载所有的配置项
            /// </summary>
            public static void ReloadColl()
            {
                configs = new Select().From<XConfig>()
                    .ExecuteAsCollection<XConfigCollection>();
            }
            #endregion
            #region methods
            /// <summary>
            /// 获取配置信息
            /// </summary>
            /// <param name="key"></param>
            /// <returns></returns>
            public static string GetValue(string key)
            {
                foreach (XConfig config in configs)
                {
                    if (config.ConfigKey == key)
                    {
                        return config.ConfigValue;
                    }
                }
                return String.Empty;
            }
            /// <summary>
            /// 设置值
            /// </summary>
            /// <param name="key"></param>
            /// <param name="value"></param>
            public static void SetValue(string key, string value)
            {
                foreach (XConfig config in configs)
                {
                    if (config.ConfigKey == key)
                    {
                        config.ConfigValue = value;
                    }
                }
            }
            /// <summary>
            /// 保存所有更改的配置项
            /// </summary>
            public static void SaveAll()
            {
                configs.SaveAll();
            }
            #endregion
            #region properties
            /// <summary>
            /// 网站标题
            /// </summary>
            public static string Title
            {
                get
                {
                    return GetValue("Title");
                }
                set
                {
                    SetValue("Title", value);
                }
            }
            /// <summary>
            /// 列表每页显示的个数
            /// </summary>
            public static int PageSize
            {
                get
                {
                    return Convert.ToInt32(GetValue("PageSize"));
                }
                set
                {
                    SetValue("PageSize", value.ToString());
                }
            }
            /// <summary>
            /// 菜单样式(手风琴式，树型菜单)
            /// </summary>
            public static string MenuType
            {
                get
                {
                    return GetValue("MenuType");
                }
                set
                {
                    SetValue("MenuType", value);
                }
            }

            #endregion
        }
    }
    

    <ext:PageManager ID="PageManager1" AutoSizePanelID="SimpleForm1" runat="server" />
    <ext:SimpleForm ID="SimpleForm1" runat="server" LabelWidth="100px" BodyPadding="5px"
        EnableBackgroundColor="true" ShowBorder="false" Title="系统设置">
        <Items>
            <ext:TextBox ID="tbxTitle" runat="server" Label="网站标题" Required="true" ShowRedStar="true">
            </ext:TextBox>
            <ext:NumberBox ID="nbxPageSize" runat="server" Label="表格显示项数" Required="true" ShowRedStar="true">
            </ext:NumberBox>
            <ext:DropDownList ID="ddlMenuType" Label="菜单样式" runat="server" Required="true" ShowRedStar="true">
                <ext:ListItem Text="手风琴式" Value="accordion" />
                <ext:ListItem Text="树型菜单" Value="tree" />
            </ext:DropDownList>
            <ext:Button ID="btnSave" runat="server" ValidateForms="SimpleForm1" Text="保存设置" OnClick="btnSave_OnClick">
            </ext:Button>
        </Items>
    </ext:SimpleForm>
    

• PageManager的属性AutoSizePanelID="SimpleForm1"，指定SimpleForm1充满整个页面
• SimpleForm1的属性ShowBorder="false"，去掉蓝色的边框（因为这个SimpleForm是以IFrame的形式嵌入另一个页面的）
• SimpleForm1的属性EnableBackgroundColor="true"，蓝色的背景色
• tbxTitle的属性Required="true"和ShowRedStar="true"，指定必填项和红色的标记
• btnSave的属性ValidateForms="SimpleForm1"，点击此按钮需要验证的表单（可以指定多个表单，以逗号分隔）

    public partial class config : PageBase
    {
        private static readonly log4net.ILog logger = log4net.LogManager.GetLogger(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
        #region Page_Load
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                LoadData();
            }
        }
        private void LoadData()
        {
            tbxTitle.Text = XConfigHelper.Title;
            nbxPageSize.Text = XConfigHelper.PageSize.ToString();
            ddlMenuType.SelectedValue = XConfigHelper.MenuType.ToLower();
        }
        #endregion
        #region Events
        protected void btnSave_OnClick(object sender, EventArgs e)
        {
            XConfigHelper.Title = tbxTitle.Text.Trim();
            XConfigHelper.PageSize = Convert.ToInt32(nbxPageSize.Text.Trim());
            XConfigHelper.MenuType = ddlMenuType.SelectedValue.ToLower();
            XConfigHelper.SaveAll();
            // 刷新父页面
            ExtAspNet.PageContext.RegisterStartupScript("parent.window.location.href=parent.window.location.href;");
        }
        #endregion
    }
    

• asp