2021-09-06 WPF数据采集与监控系统开发实战-主窗口布局

悠悠 2022-09-10 06:23 323阅读 0赞

![在这里插入图片描述][watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5b6u6L2vTVZQIEVsZXZlbg_size_20_color_FFFFFF_t_70_g_se_x_16]

## 一：页面布局 ##

public partial class MainWindow : Window
        { 
            public MainWindow()
            { 
                InitializeComponent();
    
                this.DataContext = new MainViewModel();
            }
    
            private void Window_MouseMove(object sender, MouseEventArgs e)
            { 
                if (e.LeftButton == MouseButtonState.Pressed)
                    this.DragMove();
            }
    
            private void Button_Click(object sender, RoutedEventArgs e)
            { 
                this.Close();
            }
        }

public class MainViewModel : NotifyPropertyBase
        { 
            private UIElement _mainContent;
    
            public UIElement MainContent
            { 
                get {  return _mainContent; }
                set
                { 
                    Set<UIElement>(ref _mainContent, value);
                }
            }
    
            public CommandBase TabChangedCommand {  get; set; }
    
            public MainViewModel()
            { 
                TabChangedCommand = new CommandBase(OnTabChanged);
    
                OnTabChanged("Zhaoxi.Industrial.View.SystemMonitor");
            }
    
            private void OnTabChanged(object obj)
            { 
                if (obj == null) return;
                // 完整方式
                //string[] strValues = o.ToString().Split('|');
                //Assembly assembly = Assembly.LoadFrom(strValues[0]);
                //Type type = assembly.GetType(strValues[1]);
                //this.MainContent = (UIElement)Activator.CreateInstance(type);
    
                // 简化方式，必须在同一个程序集下
                Type type = Type.GetType(obj.ToString());
                this.MainContent = (UIElement)Activator.CreateInstance(type);
            }
        }

public class NotifyPropertyBase : INotifyPropertyChanged
        { 
            public event PropertyChangedEventHandler PropertyChanged;
    
            public void RaisePropertyChanged([CallerMemberName] string propName = "")
            { 
                PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propName));
            }
    
            public void Set<T>(ref T field, T value, [CallerMemberName] string propName = "")
            { 
                if (EqualityComparer<T>.Default.Equals(field, value))
                    return;
    
                field = value;
                RaisePropertyChanged(propName);
            }
        }

public class CommandBase : ICommand
        { 
            public event EventHandler CanExecuteChanged;
    
            public bool CanExecute(object parameter)
            { 
                return true;
            }
    
            public void Execute(object parameter)
            { 
                this.DoExecute?.Invoke(parameter);
            }
            public Action<object> DoExecute {  get; set; }
    
            public CommandBase() {  }
            public CommandBase(Action<object> action)
            { 
                DoExecute = action;
            }
        }

[watermark_type_ZHJvaWRzYW5zZmFsbGJhY2s_shadow_50_text_Q1NETiBA5b6u6L2vTVZQIEVsZXZlbg_size_20_color_FFFFFF_t_70_g_se_x_16]: /images/20220829/9bfce0a223b64db39239959384d36ac4.png