Winform高级技巧-界面和代码分离的实践案例

我们看看上图的场景，因为现场的实际方案没有最终确定，所以开发人员写了5个版本的代码来验证5种流程，但界面就1个，因为业务的数据是一样的。像这种情况我们这种解决方式是极好的。写代码的同事只需要初级程序员就可以担任。帮忙验证和测试是由高级程序员来担任。贴一些源码来辅助说明一下是怎么实现的。

1.界面的基类：  

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using System; using System.Collections.Generic; using System.Threading; using System.Windows.Forms; using MES.Core; using EES.Common; using EES.Controls.Win; using EES.Common.Data; using System.ComponentModel; using System.Runtime.InteropServices; using System.Text; using System.Linq; using WinControls; using DataCool_MES.framework; using DataCool_MES.config; using DataCool_MES.utils; using System.Drawing; namespace DataCool_MES {     public delegate void FeedInfoHandler(object sender, Exception ex, string message, MessageTipsLevel level);     /// <summary>     /// 业务窗体基类     /// </summary>     public partial class BaseModuleForm : DockBaseWorkForm     {         #region DllImport         [DllImport("kernel32")]         public static extern long WritePrivateProfileString(string section, string key, string val, string filepath);         [DllImport("kernel32")]         public static extern int GetPrivateProfileString(string section, string key, string def, StringBuilder retval, int size, string filePath);         [DllImport("imm32.dll")]         public static extern IntPtr ImmGetContext(IntPtr hwnd);         [DllImport("imm32.dll")]         public static extern bool ImmGetOpenStatus(IntPtr himc);         [DllImport("imm32.dll")]         public static extern bool ImmSetOpenStatus(IntPtr himc, bool b);         [DllImport("imm32.dll")]         public static extern bool ImmGetConversionStatus(IntPtr himc, ref int lpdw, ref int lpdw2);         [DllImport("imm32.dll")]         #endregion         public static extern int ImmSimulateHotKey(IntPtr hwnd, int lngHotkey);         private const int IME_CMODE_FULLSHAPE = 0x8;         private const int IME_CHOTKEY_SHAPE_TOGGLE = 0x11;         private SynchronizationContext sc;         protected string onceScanData = string.Empty;         private BarCodeHooK hook;         IModuleFlow coreFlowObj;         // 获取屏幕分辨率         private Rectangle primaryScreen;         private float scaleX;  // 基准分辨率宽度         private float scaleY;         [Browsable(false)]         public IModuleFlow CoreFlowObj         {             get { return coreFlowObj; }         }         [Browsable(false)]         /// <summary>         /// 日志记录处理异常信息显示处理对象         /// 此处用于各种日志和状态信息的记录，并进行对应的信息的显示         /// </summary>         internal virtual AlertLog Log         {             get             {                 return null;             }         }                protected event Action CursorBegin;         protected event Action CursorEnd;                         /// <summary>         /// 实例化脚本对象         /// </summary>         /// <returns></returns>         protected virtual IModuleFlow CreateModuleFlow()         {             return null;         }         public BaseModuleForm()         {             DoubleBuffered = true;             ImeMode = ImeMode.Off;             AutoScaleMode = AutoScaleMode.None;             InitializeComponent();             #region Cursor             CursorBegin = () =>             {                 Clear();                 Cursor = Cursors.WaitCursor;             };             CursorEnd = () =>             {                 Cursor = Cursors.Default;             };             #endregion             Load += BaseModuleForm_Load;             hook = new BarCodeHooK();             hook.BarCodeEvent += Hook_BarCodeEvent;             hook.Start();             FormClosed += BaseModuleForm_FormClosed;         }         private void BaseModuleForm_FormClosed(object sender, FormClosedEventArgs e)         {             try             {                 hook.Stop();                 hook.BarCodeEvent -= Hook_BarCodeEvent;                 hook = null;             }             catch (Exception ex)             {                 FrameAppContext.GetInstance().AppLogger.Error(ex);             }         }         private void Hook_BarCodeEvent(BarCodeHooK.BarCodes barCode)         {             if (CoreFlowObj != null && FlowContext.Instance.WorkStatus == WorkStatus.Running && !string.IsNullOrEmpty(barCode.BarCode))             {                 onceScanData = TrimSpecialChar(barCode.BarCode);                 CoreFlowObj.OnExecScanReceiving(onceScanData);             }         }         private void BaseModuleForm_Load(object sender, EventArgs e)         {             sc = SynchronizationContext.Current;             if (!DesignMode)             {                 Input = FlowContext.Instance;                 FlowContext.Instance.FlowCustomEvent += OnRaiseFlowCustomEvent;             }         }         private void OnRaiseFlowCustomEvent(object sender, TEventArgs<EventClass> e)         {             sc.Post(new SendOrPostCallback(delegate (object obj)             {                 OnFlowCustomEvent((EventClass)obj);             }), e.Data);         }         protected virtual void OnFlowCustomEvent(EventClass ec)         {             if (ec.EventType == FlowViewCommand.ClearCurText)             {                 Clear();             }         }         /// <summary>         /// 获取当前窗体绑定的上下文对象         /// </summary>         /// <returns></returns>         public virtual BindingType GetBindingType()         {             Type type;             if (bindingSource.DataSource is Type)             {                 type = (Type)bindingSource.DataSource;             }             else             {                 if (bindingSource.DataSource != null)                 {                     type = bindingSource.DataSource.GetType();                 }                 else                 {                     type = null;                 }             }             if (type == null)             {                 throw new Exception("界面输入的数据源为空");             }             BindingType bindingType = new BindingType();             Type type2;             if (type.GUID == typeof(DataCollection<>).GUID)             {                 type2 = type.GetGenericArguments()[0];                 bindingType.IsArray = true;             }             else             {                 if (type.GUID == typeof(List<>).GUID)                 {                     type2 = type.GetGenericArguments()[0];                     bindingType.IsArray = true;                 }                 else                 {                     type2 = type;                     bindingType.IsArray = false;                 }             }             bindingType.Type = Factory.getRawType(type2);             return bindingType;         }         public virtual void Start()         {             if (coreFlowObj != null && FlowContext.Instance.WorkStatus == WorkStatus.Running)                 return;             IModuleFlow core = null;             try             {                 CursorBegin.Invoke();                 if (CoreFlowObj != null)                     throw new Exception("正在作业，不能启动！");                 core = CreateModuleFlow();                 if (core != null)                 {                     core.FeedInfo += OnFeedInfo;                     core.ExecBeginWork();                     coreFlowObj = core;                     FlowContext.Instance.WorkStatus = WorkStatus.Running;                 }                 ImeMode = ImeMode.NoControl;                 Log.SetLogFocus();             }             catch (Exception ex)             {                 FlowContext.Instance.WorkStatus = WorkStatus.NoAction;                 if (coreFlowObj != null)                 {                     coreFlowObj.FeedInfo -= OnFeedInfo;                     coreFlowObj = null;                 }                 throw ex;             }             finally             {                 if (FlowContext.Instance.WorkStatus == WorkStatus.Running)                 {                     onceScanData = string.Empty;                 }                 CursorEnd.Invoke();             }         }         public virtual void Stop()         {             if (CoreFlowObj != null)             {                 try                 {                     var configObj = SerializerHelper.LoadFromXML<AppContentConfig>(FrameAppContext.GetInstance().RunTimeConfigPath + "\\AppContentConfig.Config");                     if (configObj != null && !string.IsNullOrEmpty(configObj.EntryModuleName) && configObj.EntryModuleName.Equals("成品装箱作业"))                     {                         using (var dlgFrm = new FlowStopCheckForm())                         {                             var dlg = dlgFrm.ShowDialog();                             if (dlg == DialogResult.OK && !FlowContext.Instance.IsEndPacking)                             {                                 CoreFlowObj.ExecEndWork();                                 coreFlowObj = null;                                 FlowContext.Instance.WorkStatus = WorkStatus.Stopped;                             }                             if (dlg == DialogResult.OK && FlowContext.Instance.IsEndPacking)                             {                                 CoreFlowObj.StopWorkCheck();                             }                         }                     }                     else                     {                         CoreFlowObj.ExecEndWork();                         coreFlowObj = null;                         FlowContext.Instance.WorkStatus = WorkStatus.Stopped;                     }                 }                 catch (Exception ex)                 {                     Exception error = new Exception("流程执行异常停止，" + ex.InnerException == null ? ex.Message : ex.InnerException.Message);                     FrameAppContext.GetInstance().AppLogger.Error(error);                 }                 finally                 {                     Clear();                     if (FlowContext.Instance.WorkStatus != WorkStatus.Running)                     {                         Log.Write("作业已经停止！", "", MessageTipsLevel.Warning);                         FrameAppContext.GetInstance().AppLogger.Info("作业已经停止！");                         FlowContext.Instance.ResetContext();                     }                     Utility.GCFullCollect();                 }             }         }<