namespace ViewModel
{public class BaseViewModel : INotifyPropertyChanged{public event PropertyChangedEventHandler PropertyChanged;public const string UINameSapce = "KibaFramework";public string UIElementName = "";public FrameworkElement UIElement { get; set; }public Window WindowMain { get; set; } //主窗体  public EventHandler CloseCallBack = null; //窗体/页面/控件 关闭委托 public BaseViewModel(){WindowMain = Application.Current.MainWindow; SetUIElement();}#region 通过反射创建对应的UI元素public void SetUIElement(){Type childType = this.GetType();//获取子类的类型   string name = this.GetType().Name;UIElementName = name.Replace("VM_", "");UIElementName = UIElementName.Replace("`1", "");//应对泛型实体if (name.Contains("Window")){UIElement = GetElement<Window>();(UIElement as Window).Closing += (s, e) =>{if (CloseCallBack != null){CloseCallBack(s, e);}};}else if (name.Contains("Page")){UIElement = GetElement<Page>();(UIElement as Page).Unloaded += (s, e) =>{if (CloseCallBack != null){CloseCallBack(s, e);}};}else if (name.Contains("UC")){UIElement = GetElement<UserControl>();(UIElement as UserControl).Unloaded += (s, e) =>{if (CloseCallBack != null){CloseCallBack(s, e);}};}else{throw new Exception("元素名不规范");}}public E GetElement<E>(){Type type = GetFormType(UINameSapce + "." + UIElementName);E element = (E)Activator.CreateInstance(type);return element;}public static Type GetFormType(string fullName){Assembly assembly = Assembly.Load(UINameSapce);Type type = assembly.GetType(fullName, true, false);return type;}#endregion#region 窗体操作public void Show(){if (UIElement is Window){(UIElement as Window).Show();}else{throw new Exception("元素类型不正确");}}public void ShowDialog(){if (UIElement is Window){(UIElement as Window).ShowDialog();}else{throw new Exception("元素类型不正确");}}public void Close(){if (UIElement is Window){(UIElement as Window).Close();}else{throw new Exception("元素类型不正确");}}public void Hide(){if (UIElement is Window){(UIElement as Window).Hide();}else{throw new Exception("元素类型不正确");}}#endregion#region Messagepublic void MessageBox(Window owner, string msg){DispatcherHelper.GetUIDispatcher().Invoke(new Action(() =>{if (owner != null){System.Windows.MessageBox.Show(owner, msg, "提示信息");}else{System.Windows.MessageBox.Show(WindowMain, msg, "提示信息");}}));}public void MessageBox(string msg){DispatcherHelper.GetUIDispatcher().Invoke(new Action(() =>{System.Windows.MessageBox.Show(WindowMain, msg, "提示信息");}));}public void MessageBox(string msg, string strTitle){DispatcherHelper.GetUIDispatcher().Invoke(new Action(() =>{System.Windows.MessageBox.Show(WindowMain, msg, "提示信息");}));}public void MessageBox(string msg, Action<bool> callback){MessageBox("系统提示", msg, callback);}public void MessageBox(string title, string msg, Action<bool> callback){DispatcherHelper.GetUIDispatcher().Invoke(new Action(() =>{if (System.Windows.MessageBox.Show(WindowMain, msg, title, MessageBoxButton.YesNo) == MessageBoxResult.Yes){callback(true);}else{callback(false);}}));}#endregion#region   异步线程public void AsyncLoad(Action action){IAsyncResult result = action.BeginInvoke((iar) =>{}, null);}public void AsyncLoad(Action action, Action callback){IAsyncResult result = action.BeginInvoke((iar) =>{this.DoMenthodByDispatcher(callback);}, null);}public void AsyncLoad<T>(Action<T> action, T para, Action callback){IAsyncResult result = action.BeginInvoke(para, (iar) =>{this.DoMenthodByDispatcher(callback);}, null);}public void AsyncLoad<T, R>(Func<T, R> action, T para, Action<R> callback){IAsyncResult result = action.BeginInvoke(para, (iar) =>{var res = action.EndInvoke(iar);this.DoMenthodByDispatcher<R>(callback, res);}, null);}public void AsyncLoad<R>(Func<R> action, Action<R> callback){IAsyncResult result = action.BeginInvoke((iar) =>{var res = action.EndInvoke(iar);this.DoMenthodByDispatcher<R>(callback, res);}, null);}public void DoMenthodByDispatcher<T>(Action<T> action, T obj){DispatcherHelper.GetUIDispatcher().BeginInvoke(new Action(() =>{action(obj);}), DispatcherPriority.Normal);}public void DoMenthodByDispatcher(Action action){DispatcherHelper.GetUIDispatcher().BeginInvoke(new Action(() =>{action();}), DispatcherPriority.Normal);}#endregion  protected void OnPropertyChanged([CallerMemberName]string propertyName = ""){if (PropertyChanged != null){PropertyChanged(this, new PropertyChangedEventArgs(propertyName));}}}
}

protected override void OnStartup(StartupEventArgs e)
{VM_WindowMain vm = new VM_WindowMain();Application.Current.MainWindow = vm.UIElement as Window;vm.Show();base.OnStartup(e);
}

VM_WindowCreateUser vm = new VM_WindowCreateUser();
vm.Show();