C# Winform下一个热插拔的MIS/MRP/ERP框架13（窗体基类）

作为一个ERP数据处理框架，大部分的开发场景都差不多。

理想中，对于通用数据处理，我的步骤如下：

1、为窗体指定数据来源（数据表/查询等）；

2、拖入编辑控件，指定绑定字段；

3、结束。

为此，我设计了几个基类窗体，给它们分成几个场景（如无数据/单表数据/主从表/多表关联等），在不同的业务模型下，我选取相应的基类窗体进行继承。

首先，看看最基础的基类窗体，它包含了基础的处理（诸如多语言加载、权限判断、状态刷新、自动数据绑定等基础方法和属性）：

    /// <summary>
    /// 窗体基类
    /// </summary>
    public partial class Fm11Base : Form
    {
        //private：只能在本类中使用
        //protected：在本类中及其子类中可以使用
        //internal：同一命名空间（程序集）中的类可以使用
        //public：所有类均可使用


        /// <summary>
        /// 用于耗时任务展示任务运行状态
        /// </summary>
        protected Fm11BgwkStatus fm11BgwkStatus;

        [Description("窗体除基本状态控制查改删外,是否跳过其它权限控制.为是的情况下,所有权限判定都将为真."), DefaultValue(false), Browsable(true)]
        public bool IgnoreRightsControl { get; set; }

        /// <summary>
        /// <para>指定当前绑定的数据源.在获取数据来源后并绑定后记录一个标记值,用于一个窗体多个绑定源时区分当前所绑定的数据源.</para>
        /// 单个绑定源可在FormOnload时绑定一次,无需设置
        /// </summary>
        public BindingSource CurBindingSource { get; set; }

        /// <summary>
        /// <para>指定已经绑定过的数据源名称,避免重复绑定</para>
        /// 一般只有一个BSMaster,当存在多个时,以A,B,C方式存入.
        /// </summary>
        public List<string> HasBindBSNames { get; set; } = new List<string>();

        /// <summary>
        /// 窗体当前绑定的主要数据源的新增/编辑位置(当记录进入新增和编辑状态时,需写入此值;当浏览到其它记录以便复制粘贴时,可以利用此状态)
        /// </summary>
        public int CurBSEditPos = -1;

        /// <summary>
        /// 窗体当前绑定的主要数据源的当前位置(不一定是编辑位置)
        /// </summary>
        public int CurBSPosition = 0;

        /// <summary>
        /// 窗体正在创建时(不是Loading),利用此标记在加载数据时不触发CurrentChange事件
        /// </summary>
        public bool OnIniting = false;

        /// <summary>
        /// 编辑状态标记:0-浏览,1-新增,2-编辑
        /// </summary>
        [Description("编辑状态标记:0-浏览,1-新增,2-编辑"), Browsable(false)]
        public int EditStatus;

        /// <summary>
        /// 从对象列表中定义的加载参数,窗体加载时提供.主要用于同一个窗体在不同模块加载时根据此参数进行数据过滤.如果权限窗体,不同模块点开则由只显示指定模块的数据.
        /// </summary>
        [Description("窗体加载时提供的参数,主要用于同一个窗体在不同模块加载时根据此参数进行数据过滤.如果权限窗体,不同模块点开则由只显示指定模块的数据."), Browsable(true)]
        public string OnLoadParams { get; set; }

        /// <summary>
        /// 当前用户打开窗体后带入的权限列表
        /// </summary>
        [Description("当前用户打开窗体后带入的权限列表"), Browsable(false)]
        public string RightsList;

        /// <summary>
        /// 默认将ENTER键动作转为TAB
        /// </summary>
        public bool EnterToTAB = true;

        /// <summary>
        /// 显示模式:0为帐户ID;1为姓名;2为用户全名; 3为用户名 - 姓名;4为用户名 - 全名;
        /// </summary>
        protected internal int UserNameDispType = 4;

        /// <summary>
        /// 所有窗体的基类,可以设置多语言等通用功能
        /// </summary>
        public Fm11Base()
        {
            OnIniting = true;
            InitializeComponent();
        }

        /// <summary>
        /// 按指定的键值直接定位到某条记录
        /// </summary>
        /// <param name="tagBS">指定BS,有可能是定位其它数据源而非主数据</param>
        /// <param name="tagDT">必须指定DT,与BS匹配,除直接DT外,有可能是Dataset的某一Table或关联表的连接</param>
        /// <param name="keyFieldName">字段名称</param>
        /// <param name="pKeyValue">字段值</param>
        public virtual void GotoRecord(BindingSource tagBS, DataTable tagDT, string keyFieldName, object pKeyValue)
        {
            if (tagBS == null)
            {
                MyMsg.Warning("数据源未完成初始化,无法定位.");
                return;
            }
            if (EditStatus != 0)
            {
                MyMsg.Warning("窗体正在编辑中,无法定位.");
                return;
            }
            HpDataTable.GotoRecord(tagBS, tagDT, keyFieldName, pKeyValue);
        }

        /// <summary>
        /// 设置当前窗体的状态栏标签(名称需指定为:LabStsMain)字符串(不是主框架的状态栏字符);
        /// 输入..将默认显示(等待指令...)
        /// </summary>
        /// <param name="statusText"></param>
        protected void SetMainStatus(string statusText)
        {
            object o = GetObjInstance("LabStsMain");
            if (o == null) o = GetObjInstance("StsLabMain");
            if (o != null)
            {
                if (statusText == "..") statusText = MultiLang.Surface(null, "Waitting", "", true);
                ((ToolStripStatusLabel)o).Text = statusText;
                Refresh();
            }
            else
            {
                MyMsg.Exclamation("The status label does not exist.");
                return;
            }
        }

        private void Fm11Base_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (EditStatus > 0)
            {
                if (e.CloseReason == CloseReason.UserClosing || e.CloseReason == CloseReason.FormOwnerClosing || e.CloseReason == CloseReason.None)
                {
                    if (MyMsg.Question("当前窗体正处于"+(EditStatus==1?"新增":"编辑")+"状态,确定要继续关闭吗?") == DialogResult.No)
                    {
                        e.Cancel = true;
                    }
                }
            }
        }
        /// <summary>
        /// 获取当前的活动控件
        /// </summary>
        /// <returns></returns>
        protected Control GetActiveControl()
        {
            Control activeControl = this.ActiveControl;
            while ((activeControl as ContainerControl) != null)
            {
                activeControl = (activeControl as ContainerControl).ActiveControl;
            }
            return activeControl;
        }
        /// <summary>
        /// 截获系统消息
        /// </summary>
        /// <param name="msg"></param>
        /// <param name="keyData"></param>
        /// <returns></returns>
        protected override bool ProcessCmdKey(ref Message msg, Keys keyData)
        {
            Control actControl = GetActiveControl();
            if ((keyData == Keys.Enter) && (EnterToTAB == true) && !(actControl is Button))
            {
                Type mtype = actControl.GetType();
                if (mtype.GetProperty("AcceptsReturn") != null)
                {
                    bool acptRtn =OString.NZ2Bool(mtype.GetProperty("AcceptsReturn").GetValue(actControl, null));
                    if (!acptRtn)
                    {
                        SendKeys.Send("{TAB}");
                        return true;
                    }
                    else
                    {
                        return false;
                    }
                }
                else
                {
                    SendKeys.Send("{TAB}");
                    return true;
                }
            }
            else if (keyData == Keys.F12)
            {
                Control control = GetActiveControl();
                if (control == null) return false;
                string tipStr = OString.NZ2Str(control.AccessibleDescription).Trim();
                if (!string.IsNullOrEmpty(tipStr))
                {
                    if (control.Parent != null)
                    {
                        TtipF12.Show(tipStr, control.Parent, control.Location.X, control.Location.Y + 26, 2000);
                        return false;
                    }
                    else return false;
                }
                else return false;
            }
            else
            {
                return false;
            }
        }

        /// <summary>
        /// 判断当前用户是否在当前窗体拥有权限(可支持多个权限同时判断,以逗号分割)
        /// <para>同时满足时才会返回True</para>
        /// </summary>
        /// <param name="rightCodes">add,open等权限码,不区分大小写</param>
        /// <returns></returns>
        protected bool HasRights(string rightCodes)
        {
            if (IgnoreRightsControl || (GlbInfo.User.IsAdmin)) return true;
            if (OString.ListInListNeedAll(rightCodes, RightsList,",",true))
            {
                return true;
            }
            else return false;
        }

        /// <summary>
        /// 判断当前用户是否在指定的业务角色中(可支持多个角色同时判断,以逗号分割)
        /// <para>同时满足时才会返回True</para>
        /// </summary>
        /// <param name="roleRKEYs">{DEV}开发者,{ALL}全体等角色RKEY,不区分大小写</param>
        /// <returns></returns>
        protected bool HasRolesBusi(string roleRKEYs)
        {
            if (OString.ListInListNeedAll(roleRKEYs, GlbInfo.User.RolesUserIDS,",",true))
            {
                return true;
            }
            else return false;
        }

        /// <summary>
        /// 设置控件的属性值(无此属性或设置出错则返回FALSE)
        /// </summary>
        /// <param name="targetControl">目标控件</param>
        /// <param name="PropName">区分大小写</param>
        /// <param name="setValue">写入值</param>
        /// <returns></returns>
        public bool BaseSetControlProp(Control targetControl, string PropName, object setValue)
        {
            try
            {
                Type type = targetControl.GetType();
                PropertyInfo per = type.GetProperty(PropName);
                if (per != null)
                {
                    per.SetValue(targetControl, setValue, null);
                    return true;
                }
                return false;
            }
            catch (Exception)
            {
                return false;
            }
        }

        /// <summary>
        /// 设置控件的属性值(无此属性或设置出错则返回FALSE)
        /// </summary>
        /// <param name="targetObject"></param>
        /// <param name="PropName"></param>
        /// <param name="setValue"></param>
        /// <returns></returns>
        public bool BaseSetObjectProp(object targetObject, string PropName, object setValue)
        {
            try
            {
                Type type = targetObject.GetType();
                PropertyInfo per = type.GetProperty(PropName);
                if (per != null)
                {
                    per.SetValue(targetObject, setValue, null);
                    return true;
                }
                return false;
            }
            catch (Exception)
            {
                return false;
            }
        }

        /// <summary>
        /// 清空控件中的子控件值(有Value属性的会先设置Value,其他设置Text)
        /// </summary>
        /// <param name="targetControl">目标控件,如PANEL</param>
        /// <param name="expChildNames">要排除的子控件名称,以(,)号分隔.</param>
        public void BaseClearControl(Control targetControl, string expChildNames = "")
        {
            if (targetControl.Controls.Count > 0)
            {
                foreach (Control ctl in targetControl.Controls)
                {
                    if (string.IsNullOrEmpty(expChildNames) || (("," + expChildNames + ",").IndexOf("," + ctl.Name + ",") < 0))
                    {//没有指定过滤控件或者当前控件不是指定过滤控件
                        if (!(ctl is Label) && !(ctl is Button))
                        {
                            if (!BaseSetControlProp(ctl, "Value", null))
                            {
                                BaseSetControlProp(ctl, "Text", null);
                            }
                        }
                    }
                }
            }
        }

        /// <summary>
        /// 将指定控件的所有子控件设置为只读(无ReadOnly及JmReadOnly属性的设置Enabled)
        /// </summary>
        /// <param name="targetControl">目标控件</param>
        /// <param name="readOnly">是否只读</param>
        protected void BaseSetControlReadonly(Control targetControl, bool readOnly)
        {
            if (targetControl.Controls.Count > 0)
            {
                foreach (Control ctl in targetControl.Controls)
                {
                    if (BaseSetControlProp(ctl, "ReadOnly", readOnly))
                    {
                        BaseSetControlProp(ctl, "Enabled", true);
                    }
                    else
                    {
                        if (BaseSetControlProp(ctl, "JmReadOnly", readOnly))
                        {
                            BaseSetControlProp(ctl, "Enabled", true);
                        }
                        else
                        {
                            //如果无ReadOnly及JmReadOnly属性,并且此控件没有子控件(如Panel下有子控件,则不能设置Panel为无效,而应该设置其子控件),则设置Enabled属性.
                            if (ctl.Controls.Count < 1)
                            {
                                BaseSetControlProp(ctl, "Enabled", !readOnly);
                            }
                            else
                            {
                                BaseSetControlReadonly(ctl, readOnly);
                            }
                        }
                    }
                }
            }
            else
            {
                if (BaseSetControlProp(targetControl, "ReadOnly", readOnly))
                {//成功设置了只读,放开Enabled属性
                    BaseSetControlProp(targetControl, "Enabled", true);
                }
            }


        }

        /// <summary>
        /// 根据控件名称取得object对象
        /// </summary>
        /// <param name="objName"></param>
        /// <returns></returns>
        protected object GetObjInstance(string objName)
        {
            try
            {
                object o = this.GetType().GetField(objName, BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.IgnoreCase).GetValue(this);
                return o;
            }
            catch (Exception)
            {
                return null;
            }
        }

        /// <summary>
        /// 在某个对象内根据控件名称获取子对象
        /// </summary>
        /// <param name="tagObject"></param>
        /// <param name="objName"></param>
        /// <returns></returns>
        protected object GetObjInstanceIn(object tagObject, string objName)
        {
            try
            {
                Type type = tagObject.GetType();
                object o = type.GetField(objName, BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.IgnoreCase).GetValue(this);
                return o;
            }
            catch (Exception ex)
            {
                MyMsg.Information(ex.Message);
                return null;
            }
        }

        #region 数据操作按钮通用方法

        /// <summary>
        /// 设置窗体中新增/编辑等符合命名规则的按钮状态(含权限判断)
        /// </summary>
        protected virtual void BaseResetCmdState()
        {
            SetObjectEnabled("CmdRcdNew", (EditStatus == 0) && HasRights("add"));
            SetObjectEnabled("CmdRcdBack", (CurBSEditPos >= 0) && (CurBSPosition != CurBSEditPos));
            SetObjectEnabled("CmdRcdCopyNew", (EditStatus == 0) && HasRights("add"));
            SetObjectEnabled("CmdRcdEdit", (EditStatus == 0) && HasRights("edit"));
            SetObjectEnabled("CmdRcdUndo", (EditStatus > 0));
            SetObjectEnabled("CmdRcdSave", (EditStatus > 0) && (HasRights("add") || HasRights("edit")));
            SetObjectEnabled("CmdRcdDelete", (EditStatus == 0) && HasRights("delete"));
            SetObjectEnabled("CmdRcdPreview", (EditStatus == 0) && (HasRights("preview") || HasRights("print")));
            SetObjectEnabled("CmdRcdPrint", (EditStatus == 0) && HasRights("print"));
            SetObjectEnabled("CmdRcdSync", (EditStatus == 0) && HasRights("sync"));
        }

        /// <summary>
        /// 设置对象（Control/ToolStripItem）是否可用
        /// </summary>
        /// <param name="objName"></param>
        /// <param name="enb"></param>
        public void SetObjectEnabled(string objName, bool enb)
        {
            object tagO = GetObjInstance(objName);
            if (tagO == null) return;
            if (tagO is Control)
            {
                ((Control)tagO).Enabled = enb;
            }
            else if (tagO is ToolStripItem)
            {
                ((ToolStripItem)tagO).Enabled = enb;
            }
        }

        #endregion

        private void InitControlText(string ctlName,string tagText)
        {
            object o = GetObjInstance(ctlName);
            if (o != null)
            {
                Type mtype = o.GetType();
                if (mtype.GetProperty("Text") != null)
                {
                    if (mtype.GetProperty("Text").GetValue(o, null) != null)
                    {
                        if (!string.IsNullOrEmpty(tagText)) mtype.GetProperty("Text").SetValue(o, tagText, null);
                    }
                }
            }
        }

        /// <summary>
        /// 对A12系列控件进行初始化作业(Datagridview中的列控件无法自动初始化)
        /// </summary>
        /// <param name="tagControls"></param>
        private void DoA12ControlInits(Control.ControlCollection tagControls)
        {
            try
            {
                foreach (Control ctc in tagControls)
                {
                    if (ctc != null)
                    {
                        Type tmpType = ctc.GetType();
                        if ((!ctc.HasChildren) || OString.StrInSplitString(tmpType.Name, "A12BtnTextBox,A12ComboBox"))
                        {
                            if (tmpType.Name == "A12ComboBox")
                            {
                                MethodInfo mm = tmpType.GetMethod("DoRequery");
                                mm.Invoke(ctc, null);
                            }
                            else if (tmpType.Name == "A12BtnTextBox")
                            {
                                MethodInfo mm = tmpType.GetMethod("DoInitilize");
                                mm.Invoke(ctc, null);
                            }                            
                        }
                        else
                        {
                            DoA12ControlInits(ctc.Controls);
                        }
                    }
                }
            }
            catch (Exception)
            {
            }
        }

        private void Fm11Base_Load(object sender, EventArgs e)
        {
            OnIniting = false;

            //加载多语言资源,设计时状态不运行
            if (!DesignMode)
            {
                InitObjectsText(this);
                //设置全局固定的多语言
                InitControlText("TpgDataList", MultiLang.Surface(null, "FormTabList", "", true));
                InitControlText("TpgDataDetail", MultiLang.Surface(null, "FormTabDetail", "", true));
                InitControlText("CmdRcdNew", MultiLang.Surface(null, "CmdRcdNew", "", true));
                InitControlText("CmdRcdBack", MultiLang.Surface(null, "CmdRcdBack", "", true));
                InitControlText("CmdRcdCopyNew", MultiLang.Surface(null, "CmdRcdCopyNew", "", true));
                InitControlText("CmdRcdEdit", MultiLang.Surface(null, "CmdRcdEdit", "", true));
                InitControlText("CmdRcdUndo", MultiLang.Surface(null, "CmdRcdUndo", "", true));
                InitControlText("CmdRcdSave", MultiLang.Surface(null, "CmdRcdSave", "", true));
                InitControlText("CmdRcdDelete", MultiLang.Surface(null, "CmdRcdDelete", "", true));
                InitControlText("CmdRcdPreview", MultiLang.Surface(null, "CmdRcdPreview", "", true));
                InitControlText("CmdRcdPrint", MultiLang.Surface(null, "CmdRcdPrint", "", true));
                InitControlText("CmdRcdSync", MultiLang.Surface(null, "CmdRcdSync", "", true));
                string txtRequery = MultiLang.Surface(null, "CmdRequery", "", true);
                InitControlText("CmdRequery01", txtRequery);
                InitControlText("CmdRequery02", txtRequery);
                InitControlText("CmdRequery03", txtRequery);
                InitControlText("CmdRequery04", txtRequery);
                InitControlText("CmdRequery05", txtRequery);
                string txtFilter = MultiLang.Surface(null, "LabFilter", "", true);
                InitControlText("LabFilter01", txtFilter);
                InitControlText("LabFilter02", txtFilter);
                InitControlText("LabFilter03", txtFilter);
                InitControlText("LabFilter04", txtFilter);
                InitControlText("LabFilter05", txtFilter);              
            }
            //对A12系列控件进行初始化作业(如初始化下拉框控件数据)
            DoA12ControlInits(this.Controls);
        }

        /// <summary>
        /// 初始化当前窗体内的文本(如果设置了多语言文件,则按多语言定义文件显示)
        /// Tooltips控件不支持多语言显示
        /// </summary>
        /// <param name="tagObj">默认为this</param>
        public void InitObjectsText(object tagObj)
        {
            Type curType = tagObj.GetType();

            FieldInfo[] fieldInfos = curType.GetFields(BindingFlags.NonPublic | BindingFlags.Instance);
            string tmpText = string.Empty;
            foreach (FieldInfo fi in fieldInfos)
            {
                object o = fi.GetValue(this);
                if (o != null)
                {
                    Type objType = o.GetType();
                    if (objType.GetProperty("Text") != null)
                    {
                        tmpText = MultiLang.Surface(this, fi.Name + ".Text", string.Empty);
                        if (!string.IsNullOrEmpty(tmpText)) objType.GetProperty("Text").SetValue(o, tmpText, null);
                    }
                    if (objType.GetProperty("Caption") != null)
                    {
                        tmpText = MultiLang.Surface(this, fi.Name + ".Caption", string.Empty);
                        if (!string.IsNullOrEmpty(tmpText)) objType.GetProperty("Caption").SetValue(o, tmpText, null);
                    }
                    if (objType.GetProperty("Hint") != null)
                    {
                        tmpText = MultiLang.Surface(this, fi.Name + ".Hint", string.Empty);
                        if (!string.IsNullOrEmpty(tmpText)) objType.GetProperty("Hint").SetValue(o, tmpText, null);
                    }
                    if (objType.GetProperty("SuperTip") != null)
                    {
                        tmpText = MultiLang.Surface(this, fi.Name + ".SuperTip", string.Empty);
                        if (!string.IsNullOrEmpty(tmpText)) objType.GetProperty("SuperTip").SetValue(o, tmpText, null);
                    }
                }
            }

        }

        private void Fm11Base_Resize(object sender, EventArgs e)
        {
            //此处避免子窗体切换时造成闪屏
            if (this.IsMdiChild)
            {
                if (this.ParentForm.ActiveMdiChild == this)
                {
                    this.WindowState = FormWindowState.Maximized;
                }
                else
                {
                    this.WindowState = FormWindowState.Normal;
                }
            }
        }

        /// <summary>
        /// 根据提供的BindingSource,自动绑定窗体控件的数据来源(要求命名规则匹配);
        /// <para>首先绑定勾选框属性(点击即更新数据源,DBNull默认为False)</para>
        /// <para>再绑定Value及Text,所有绑定都默认从数据源带出格式验证</para>
        /// 如果控件在Tag中指定了绑定字段{BindingField:RKEY},则使用指定值绑定
        /// </summary>
        /// <param name="ctc">要绑定的控件集合,如This.controls会查询整个窗体控件,如果有明确的定义,尽量缩小范围,如指定某个Panel或Page中的控件</param>
        /// <param name="bindingSource">不指定时将使用窗体的当前绑定的BS</param>
        /// <param name="bindingName">绑定名称,避免重复绑定</param>
        /// <param name="bindlevel">绑定层次,此值在外部调用时无须变更,默认为0即可.递归绑定子控件时不会因为bindingName忽略绑定</param>
        protected void AutoBindDataSource(Control.ControlCollection ctc, BindingSource bindingSource = null, string bindingName = "BSMaster", int bindlevel = 0)
        {
            string stText = MultiLang.Surface(null, "BindingControlDS", "正在为控件绑定数据来源", true);
            try
            {
                //首次绑定时,如果窗体已经绑定过此数据源,则退出.如果是下级控件绑定,则继续
                if ((HasBindBSNames.Contains(bindingName)) && (bindlevel == 0))
                {
                    return;
                }

                if (bindingSource == null)
                {
                    if (CurBindingSource == null)
                    {
                        SetMainStatus(stText + "error(current bs is null).");
                        return;
                    }
                    else
                    {
                        bindingSource = CurBindingSource;
                    }
                }
                SetMainStatus(stText + "...");
                foreach (Control ctrl in ctc)
                {
                    if (ctrl != null)
                    {
                        Type mtype = ctrl.GetType();
                        //A12BtnTxt包含子组件,是一个组合控件,应当成一个整体看待
                        if ((!ctrl.HasChildren) || (mtype.Name=="A12BtnTextBox") || (mtype.Name=="A12TextBox") || (mtype.Name == "A12ComboBox"))
                        {
                            string tagFieldName = string.Empty;
                            string ctrlTagString = OString.NZ2Str(ctrl.Tag);
                            string tagRlsControlName = OString.GetMidStr(ctrlTagString, "{UserNameLab:", "}").Trim();
                            //看下控件是否有TagBindField属性
                            if (mtype.GetProperty("TagBindField") != null)
                            {
                                object o = mtype.GetProperty("TagBindField").GetValue(ctrl,null);
                                if (o != null) tagFieldName = o.ToString();
                            }
                            //如果没有获取到,则从Tag中获取
                            if (string.IsNullOrEmpty(tagFieldName))
                            {
                                tagFieldName = OString.GetMidStr(ctrlTagString, "{BindingField:", "}").Trim();
                            }
                            //如果没有获取到,则从名称中截取
                            if (string.IsNullOrEmpty(tagFieldName))
                            {
                                if ((ctrl.Name.IndexOf("AB") == 0) && (ctrl.Name.IndexOf("_") > 0))
                                {
                                    tagFieldName = ctrl.Name.Substring(ctrl.Name.IndexOf("_") + 1);
                                }
                            }

                            if (!string.IsNullOrEmpty(tagFieldName))
                            {
                                try
                                {
                                    Binding TmpBinding = null;

                                    if (mtype.Name == "A12ComboBox")    //自定义下拉框控件直接绑定Value属性
                                    {
                                        TmpBinding = ctrl.DataBindings.Add("Value", bindingSource, tagFieldName, true);
                                    }
                                    else if (mtype.Name == "A12BtnTextBox")
                                    {
                                        TmpBinding = ctrl.DataBindings.Add("Value", bindingSource, tagFieldName, true);
                                    }
                                    else if (ctrl is DateTimePicker)
                                    {
                                        //日期时间控件直接绑定Text属性
                                        TmpBinding = ctrl.DataBindings.Add("Text", bindingSource, tagFieldName, true,DataSourceUpdateMode.OnPropertyChanged);
                                    }
                                    else
                                    {
                                        if (mtype.GetProperty("Checked") != null)
                                        {
                                            TmpBinding = ctrl.DataBindings.Add("Checked", bindingSource, tagFieldName, true, DataSourceUpdateMode.OnPropertyChanged, 0);//当null时设置为0,不能为False,否则会出错.
                                        }
                                        else if (mtype.GetProperty("Value") != null)
                                        {
                                            TmpBinding = ctrl.DataBindings.Add("Value", bindingSource, tagFieldName, true);
                                        }
                                        else if (mtype.GetProperty("Text") != null)
                                        {
                                            TmpBinding = ctrl.DataBindings.Add("Text", bindingSource, tagFieldName, true);
                                        }
                                    }
                                    if ((TmpBinding != null) && (!string.IsNullOrEmpty(tagRlsControlName)))
                                    {
                                        TmpBinding.BindingComplete += BaseBSBindingComplete;
                                    }
                                }
                                catch (Exception)
                                {
                                    continue;
                                }
                            }
                            //没有子控件的处理完成直接跳到下一个控件,否则检查子控件
                            continue;
                        }
                        else
                        {
                            AutoBindDataSource(ctrl.Controls, bindingSource, bindingName, 1);
                        }
                        //否则检查子控件
                    }
                }
                //首次绑定才记录此值,递归时下级控件绑定不变更
                if (bindlevel == 0) HasBindBSNames.Add(bindingName);
            }
            catch (Exception ex)
            {
                SetMainStatus(stText + "error:" + ex.Message);
            }
            finally
            {
                SetMainStatus("");
            }
        }
        /// <summary>
        /// 数据绑定交互后,对设置有{UserNameLab:的Tag属性的控件,根据其值(用户ID)关联显示用户其他信息
        /// <para>{UserNameLab:Lab1}中Lab1即为显示额外信息的控件名称</para>
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e">接受一个Bindingsource的BindingComplete事件</param>
        protected void BaseBSBindingComplete(object sender, BindingCompleteEventArgs e)
        {
            if (e.BindingCompleteState == BindingCompleteState.Success)
            {
                string ctrlTagString = OString.NZ2Str(e.Binding.Control.Tag);
                string tagRlControlName = OString.GetMidStr(ctrlTagString, "{UserNameLab:", "}").Trim();
                if (!string.IsNullOrEmpty(tagRlControlName))
                {
                    //绑定控件指定了自动关联控件
                    string userID = "system";
                    Type stype = e.Binding.Control.GetType();
                    if (stype.GetProperty("Text") != null)
                    {
                        userID = e.Binding.Control.Text;
                    }

                    object tagO = GetObjInstance(tagRlControlName);
                    if (tagO != null)
                    {
                        try
                        {
                            string tagValue = string.Empty;
                            if (UserNameDispType == 0)
                            {
                                tagValue = userID;
                            }
                            else
                            {
                                List<object> tagUser = GlbInfo.GetSysUserInfo(userID, "UserName" + GlbInfo.Language + ",FullName" + GlbInfo.Language);
                                if (tagUser.Count > 0)
                                {
                                    if (UserNameDispType == 1) tagValue = OString.NZ2Str(tagUser[0]);
                                    else if (UserNameDispType == 2) tagValue = OString.NZ2Str(tagUser[1]);
                                    else if (UserNameDispType == 3) tagValue = userID + " - " + OString.NZ2Str(tagUser[0]);
                                    else if (UserNameDispType == 4) tagValue = userID + " - " + OString.NZ2Str(tagUser[1]);
                                }
                            }

                            Type mtype = tagO.GetType();
                            if (mtype.GetProperty("Value") != null)
                            {
                                BaseSetObjectProp(tagO, "Value", tagValue);
                            }
                            else if (mtype.GetProperty("Text") != null)
                            {
                                BaseSetObjectProp(tagO, "Text", tagValue);
                            }
                        }
                        catch (Exception)
                        {

                        }
                    }
                }
            }
        }

        #region 对话框显示应用程序作业状态
        /// <summary>
        /// 指定一个耗时任务监控窗体的运行参数, 其中RunningAction = delegate () { MethordName(bgwk); }
        /// </summary>
        protected class BgwkDef
        {
            public BackgroundWorker TagBgwk;
            public Action RunningAction;
            public int TProgMinimum = 0;
            public int TProgStep = 1;
            public int TProgMaximum = 100;
            public string RunningStatus;
        }

        /// <summary>
        /// 开始一个耗时较久的任务,调用前须先定义一个BgwkDef
        /// </summary>
        /// <param name="sBgwkDef"></param>
        protected void BeginBgwork(BgwkDef sBgwkDef)
        {
            if (fm11BgwkStatus == null)
            {
                fm11BgwkStatus = new Fm11BgwkStatus();
            }
            if (fm11BgwkStatus != null)
            {
                fm11BgwkStatus.ProgMain.Minimum = sBgwkDef.TProgMinimum;
                fm11BgwkStatus.ProgMain.Step = sBgwkDef.TProgStep;
                fm11BgwkStatus.ProgMain.Maximum = sBgwkDef.TProgMaximum;
                fm11BgwkStatus.TopLevel = false;
                fm11BgwkStatus.Parent = this;
                fm11BgwkStatus.Show();
                fm11BgwkStatus.BringToFront();
                fm11BgwkStatus.Left = (this.Width - fm11BgwkStatus.Width) / 2;
                fm11BgwkStatus.Top = (this.Height - fm11BgwkStatus.Height) / 2 - 90;
            }
            if (sBgwkDef.RunningAction == null)
            {
                MyMsg.Warning("系统后台任务必须指定作业方法,请检查!");
                return;
            }

            BackgroundWorker tagBgwk = sBgwkDef.TagBgwk ?? new BackgroundWorker();
            tagBgwk.WorkerSupportsCancellation = true;
            tagBgwk.WorkerReportsProgress = true;
            tagBgwk.DoWork -= BgwkBase_DoWork;
            tagBgwk.DoWork += BgwkBase_DoWork;
            tagBgwk.ProgressChanged -= BgwkBase_ProgressChanged;
            tagBgwk.ProgressChanged += BgwkBase_ProgressChanged;
            tagBgwk.RunWorkerCompleted -= BgwkBase_RunWorkerCompleted;
            tagBgwk.RunWorkerCompleted += BgwkBase_RunWorkerCompleted;
            tagBgwk.RunWorkerAsync(sBgwkDef.RunningAction);
        }

        protected void CancelBgwork(BackgroundWorker tagBgwk)
        {
            tagBgwk.CancelAsync();
        }

        protected void BgwkBase_DoWork(object sender, DoWorkEventArgs e)
        {
            ((Action)e.Argument).Invoke();
        }

        protected void BgwkBase_ProgressChanged(object sender, ProgressChangedEventArgs e)
        {
            if (fm11BgwkStatus != null)
            {
                fm11BgwkStatus.ProgMain.Value = e.ProgressPercentage > fm11BgwkStatus.ProgMain.Maximum ? fm11BgwkStatus.ProgMain.Maximum : e.ProgressPercentage;
                fm11BgwkStatus.ProgMain.PerformStep();
                fm11BgwkStatus.LabMessage.Text = e.UserState.ToString();
                fm11BgwkStatus.LabMessage.Refresh();
            }
            SetMainStatus(e.UserState.ToString());
        }

        protected void BgwkBase_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
        {
            if (e.Cancelled)
            {
            }
            if (fm11BgwkStatus != null)
            {
                fm11BgwkStatus.Close();
                fm11BgwkStatus = null;
            }
        }
        #endregion

        /// <summary>
        /// 当前BS绑定的Datatable提交变更
        /// </summary>
        protected void BaseCurBSDTAccept()
        {
            if (CurBindingSource.DataSource is DataTable dtb)
            {
                dtb.AcceptChanges();
            }
            else if (CurBindingSource.DataSource is DataSet dsb)
            {
                if (!string.IsNullOrEmpty(CurBindingSource.DataMember))
                {
                    dsb.Tables[CurBindingSource.DataMember].AcceptChanges();
                }
            }
        }

        /// <summary>
        /// 当前BS绑定的Datatable回滚变更,并放弃当前新增的行,此项须配合DGV的CancelEdit(),A12DataGridView使用其自带的Undo
        /// </summary>
        protected void BaseCurBSDTUndo()
        {
            if (CurBindingSource != null) CurBindingSource.CancelEdit();
            if (CurBindingSource.Current != null)
            {
                DataRow dataRow = ((DataRowView)CurBindingSource.Current).Row;
                dataRow.RejectChanges(); //放弃本行
            }

            if (CurBindingSource.DataSource is DataTable dtb)
            {
                dtb.RejectChanges();
            }
            else if (CurBindingSource.DataSource is DataSet dsb)
            {
                if (!string.IsNullOrEmpty(CurBindingSource.DataMember))
                {
                    dsb.Tables[CurBindingSource.DataMember].RejectChanges();
                }
            }

        }

        /// <summary>
        /// 根据用户权限及操作条件刷新控件状态(基类无任何事件,需在继承事件上处理)
        /// <para>此外会对tag中含有{UserNameLab:的控件进行关联显示用户名</para>
        /// 设置权限请依照从大控件到小控件设置,以免前面设置的小控件属性被大控件属性覆盖.
        /// </summary>
        protected virtual void ResetControlStatus()
        {
            BaseResetCmdState();
        }


        /// <summary>
        /// 标记位置,刷新按钮状态(默认调用数据撤销，如果是A12DataGridView,请使用其自带的Undo，普通DGV需要先调用Dgv的CancelEdit())
        /// </summary>
        /// <param name="needDataUndo">是否需要撤销数据变更，如果是A12DataGridView,请使用其自带的Undo</param>
        protected virtual void BaseCmdRcdUndo(bool needDataUndo = true)
        {
            SetMainStatus("..");
            if (needDataUndo) BaseCurBSDTUndo();
            CurBSEditPos = -1;
            EditStatus = 0;
            ResetControlStatus();
        }

    }

 

在此基础上，就可以很好的进行进一步的扩展。