MainWindow.xaml.cs

@@ -386,44 +386,106 @@ namespace 自救器呼吸器综合检验仪
 
         private void SwitchWindow<T>(ref T windowInstance, Func<T> createFunc) where T : Window, new()
         {
-            // 1. 停止当前窗口的定时器（不释放资源）
+            // 停止当前窗口的定时器（不释放资源）
             _readTimer?.Stop();
 
-            // 2. 检查资源是否可用（添加重连机制）
+            // 检查资源是否可用（添加重连机制）
             if (_tcpClient == null || !_tcpClient.Connected || _modbusMaster == null)
             {
-                // 尝试重新连接
+                if (!TryReconnect())
-                bool reconnectSuccess = TryReconnect();
-                if (!reconnectSuccess)
                 {
                     MessageBox.Show("TCP连接已断开，请重新连接！", "提示");
                     return;
                 }
             }
 
-            // 3. 复用窗口实例：不存在则创建，存在则激活
+            // 创建一个简易的加载覆盖窗口，作为状态栏/遮罩，避免白屏
-            if (windowInstance == null)
+            Window overlay = null;
+            try
             {
-                windowInstance = createFunc();
+                overlay = new Window
-                // 添加窗口关闭事件处理
-                windowInstance.Closed += (s, args) =>
                 {
-                    // 窗口关闭时重新启动定时器并显示当前窗口
+                    Owner = this,
-                    _readTimer?.Start();
+                    WindowStyle = WindowStyle.None,
-                    //this.Show();
+                    AllowsTransparency = true,
-                    this.Activate();
+                    // 取消遮罩背景色，使用完全透明背景以避免暗色遮罩
+                    Background = Brushes.Transparent,
+                    ShowInTaskbar = false,
+                    ResizeMode = ResizeMode.NoResize,
+                    Width = this.ActualWidth,
+                    Height = this.ActualHeight,
+                    Left = this.Left,
+                    Top = this.Top,
+                    ShowActivated = false,
+                    Topmost = true
                 };
-            }
-            else
-            {
-                // 激活已存在的窗口（前置显示）
-                windowInstance.Activate();
-                //return;
-            }
 
-            // 4. 切换窗口：隐藏当前窗口，显示目标窗口（非模态）
+                // 内容：底部居中的状态文本（不遮挡背景）
-            this.Hide();
+                var grid = new Grid();
-            windowInstance.Show(); // 使用 Show() 而不是 ShowDialog()
+                var tb = new TextBlock
+                {
+                    Text = "正在加载，请稍候...",
+                    Foreground = Brushes.Black,
+                    Background = Brushes.Transparent,
+                    HorizontalAlignment = HorizontalAlignment.Center,
+                    VerticalAlignment = VerticalAlignment.Bottom,
+                    Margin = new Thickness(0, 0, 0, 20),
+                    FontSize = 16
+                };
+                grid.Children.Add(tb);
+                overlay.Content = grid;
+
+                // 显示遮罩
+                overlay.Show();
+
+                void ShowTargetWindow(T target)
+                {
+                    // 如果目标已可见，直接激活并隐藏当前
+                    if (target.IsVisible)
+                    {
+                        target.Activate();
+                        this.Hide();
+                        overlay?.Close();
+                        return;
+                    }
+
+                    target.Opacity = 0;
+                    void OnContentRendered(object s, EventArgs e)
+                    {
+                        target.ContentRendered -= OnContentRendered;
+                        var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                        target.BeginAnimation(Window.OpacityProperty, anim);
+                        this.Hide();
+                        target.Activate();
+                        overlay?.Close();
+                    }
+
+                    target.ContentRendered += OnContentRendered;
+                    target.Show();
+                }
+
+                // 创建或复用窗口实例
+                if (windowInstance == null)
+                {
+                    windowInstance = createFunc();
+                    windowInstance.Closed += (s, args) =>
+                    {
+                        _readTimer?.Start();
+                        this.Activate();
+                    };
+
+                    ShowTargetWindow(windowInstance);
+                }
+                else
+                {
+                    ShowTargetWindow(windowInstance);
+                }
+            }
+            catch (Exception ex)
+            {
+                overlay?.Close();
+                ShowErrorMsg($"切换窗口失败：{ex.Message}");
+            }
         }
 
         // 添加重连方法

MainWindow2.xaml.cs

@@ -490,43 +490,86 @@ namespace 自救器呼吸器综合检验仪
                 }
             }
 
-            void ShowTargetWindow(T target)
+            Window overlay = null;
+            try
             {
-                if (target.IsVisible)
+                overlay = new Window
                 {
-                    target.Activate();
+                    Owner = this,
-                    this.Hide();
+                    WindowStyle = WindowStyle.None,
-                    return;
+                    AllowsTransparency = true,
-                }
+                    Background = Brushes.Transparent,
-
+                    ShowInTaskbar = false,
-                target.Opacity = 0;
+                    ResizeMode = ResizeMode.NoResize,
-                void OnContentRendered(object s, EventArgs e)
+                    Width = this.ActualWidth,
-                {
+                    Height = this.ActualHeight,
-                    target.ContentRendered -= OnContentRendered;
+                    Left = this.Left,
-                    var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                    Top = this.Top,
-                    target.BeginAnimation(Window.OpacityProperty, anim);
+                    ShowActivated = false,
-                    this.Hide();
+                    Topmost = true
-                    target.Activate();
-                }
-
-                target.ContentRendered += OnContentRendered;
-                target.Show();
-            }
-
-            if (windowInstance == null)
-            {
-                windowInstance = createFunc();
-                windowInstance.Closed += (s, args) =>
-                {
-                    _readTimer?.Start();
-                    this.Activate();
                 };
 
-                ShowTargetWindow(windowInstance);
+                var grid = new Grid();
+                var tb = new TextBlock
+                {
+                    Text = "正在加载，请稍候...",
+                    Foreground = Brushes.Black,
+                    Background = Brushes.Transparent,
+                    HorizontalAlignment = HorizontalAlignment.Center,
+                    VerticalAlignment = VerticalAlignment.Bottom,
+                    Margin = new Thickness(0, 0, 0, 20),
+                    FontSize = 16
+                };
+                grid.Children.Add(tb);
+                overlay.Content = grid;
+
+                overlay.Show();
+
+                void ShowTargetWindow(T target)
+                {
+                    if (target.IsVisible)
+                    {
+                        target.Activate();
+                        this.Hide();
+                        overlay?.Close();
+                        return;
+                    }
+
+                    target.Opacity = 0;
+                    void OnContentRendered(object s, EventArgs e)
+                    {
+                        target.ContentRendered -= OnContentRendered;
+                        var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                        target.BeginAnimation(Window.OpacityProperty, anim);
+                        this.Hide();
+                        target.Activate();
+                        overlay?.Close();
+                    }
+
+                    target.ContentRendered += OnContentRendered;
+                    target.Show();
+                }
+
+                if (windowInstance == null)
+                {
+                    windowInstance = createFunc();
+                    windowInstance.Closed += (s, args) =>
+                    {
+                        _readTimer?.Start();
+                        this.Activate();
+                    };
+
+                    ShowTargetWindow(windowInstance);
+                }
+                else
+                {
+                    ShowTargetWindow(windowInstance);
+                }
             }
-            else
+            catch (Exception ex)
             {
-                ShowTargetWindow(windowInstance);
+                overlay?.Close();
+                ShowErrorMsg($"切换窗口失败：{ex.Message}");
             }
         }
         // 添加重连方法

MainWindow3.xaml.cs

@@ -463,43 +463,86 @@ namespace 自救器呼吸器综合检验仪
                 }
             }
 
-            void ShowTargetWindow(T target)
+            Window overlay = null;
+            try
             {
-                if (target.IsVisible)
+                overlay = new Window
                 {
-                    target.Activate();
+                    Owner = this,
-                    this.Hide();
+                    WindowStyle = WindowStyle.None,
-                    return;
+                    AllowsTransparency = true,
-                }
+                    Background = Brushes.Transparent,
-
+                    ShowInTaskbar = false,
-                target.Opacity = 0;
+                    ResizeMode = ResizeMode.NoResize,
-                void OnContentRendered(object s, EventArgs e)
+                    Width = this.ActualWidth,
-                {
+                    Height = this.ActualHeight,
-                    target.ContentRendered -= OnContentRendered;
+                    Left = this.Left,
-                    var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                    Top = this.Top,
-                    target.BeginAnimation(Window.OpacityProperty, anim);
+                    ShowActivated = false,
-                    this.Hide();
+                    Topmost = true
-                    target.Activate();
-                }
-
-                target.ContentRendered += OnContentRendered;
-                target.Show();
-            }
-
-            if (windowInstance == null)
-            {
-                windowInstance = createFunc();
-                windowInstance.Closed += (s, args) =>
-                {
-                    _readTimer?.Start();
-                    this.Activate();
                 };
 
-                ShowTargetWindow(windowInstance);
+                var grid = new Grid();
+                var tb = new TextBlock
+                {
+                    Text = "正在加载，请稍候...",
+                    Foreground = Brushes.Black,
+                    Background = Brushes.Transparent,
+                    HorizontalAlignment = HorizontalAlignment.Center,
+                    VerticalAlignment = VerticalAlignment.Bottom,
+                    Margin = new Thickness(0, 0, 0, 20),
+                    FontSize = 16
+                };
+                grid.Children.Add(tb);
+                overlay.Content = grid;
+
+                overlay.Show();
+
+                void ShowTargetWindow(T target)
+                {
+                    if (target.IsVisible)
+                    {
+                        target.Activate();
+                        this.Hide();
+                        overlay?.Close();
+                        return;
+                    }
+
+                    target.Opacity = 0;
+                    void OnContentRendered(object s, EventArgs e)
+                    {
+                        target.ContentRendered -= OnContentRendered;
+                        var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                        target.BeginAnimation(Window.OpacityProperty, anim);
+                        this.Hide();
+                        target.Activate();
+                        overlay?.Close();
+                    }
+
+                    target.ContentRendered += OnContentRendered;
+                    target.Show();
+                }
+
+                if (windowInstance == null)
+                {
+                    windowInstance = createFunc();
+                    windowInstance.Closed += (s, args) =>
+                    {
+                        _readTimer?.Start();
+                        this.Activate();
+                    };
+
+                    ShowTargetWindow(windowInstance);
+                }
+                else
+                {
+                    ShowTargetWindow(windowInstance);
+                }
             }
-            else
+            catch (Exception ex)
             {
-                ShowTargetWindow(windowInstance);
+                overlay?.Close();
+                ShowErrorMsg($"切换窗口失败：{ex.Message}");
             }
         }
         // 添加重连方法

MainWindow4.xaml.cs

@@ -308,43 +308,86 @@ namespace 自救器呼吸器综合检验仪
                 }
             }
 
-            void ShowTargetWindow(T target)
+            Window overlay = null;
+            try
             {
-                if (target.IsVisible)
+                overlay = new Window
                 {
-                    target.Activate();
+                    Owner = this,
-                    this.Hide();
+                    WindowStyle = WindowStyle.None,
-                    return;
+                    AllowsTransparency = true,
-                }
+                    Background = Brushes.Transparent,
-
+                    ShowInTaskbar = false,
-                target.Opacity = 0;
+                    ResizeMode = ResizeMode.NoResize,
-                void OnContentRendered(object s, EventArgs e)
+                    Width = this.ActualWidth,
-                {
+                    Height = this.ActualHeight,
-                    target.ContentRendered -= OnContentRendered;
+                    Left = this.Left,
-                    var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                    Top = this.Top,
-                    target.BeginAnimation(Window.OpacityProperty, anim);
+                    ShowActivated = false,
-                    this.Hide();
+                    Topmost = true
-                    target.Activate();
-                }
-
-                target.ContentRendered += OnContentRendered;
-                target.Show();
-            }
-
-            if (windowInstance == null)
-            {
-                windowInstance = createFunc();
-                windowInstance.Closed += (s, args) =>
-                {
-                    _readTimer?.Start();
-                    this.Activate();
                 };
 
-                ShowTargetWindow(windowInstance);
+                var grid = new Grid();
+                var tb = new TextBlock
+                {
+                    Text = "正在加载，请稍候...",
+                    Foreground = Brushes.Black,
+                    Background = Brushes.Transparent,
+                    HorizontalAlignment = HorizontalAlignment.Center,
+                    VerticalAlignment = VerticalAlignment.Bottom,
+                    Margin = new Thickness(0, 0, 0, 20),
+                    FontSize = 16
+                };
+                grid.Children.Add(tb);
+                overlay.Content = grid;
+
+                overlay.Show();
+
+                void ShowTargetWindow(T target)
+                {
+                    if (target.IsVisible)
+                    {
+                        target.Activate();
+                        this.Hide();
+                        overlay?.Close();
+                        return;
+                    }
+
+                    target.Opacity = 0;
+                    void OnContentRendered(object s, EventArgs e)
+                    {
+                        target.ContentRendered -= OnContentRendered;
+                        var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                        target.BeginAnimation(Window.OpacityProperty, anim);
+                        this.Hide();
+                        target.Activate();
+                        overlay?.Close();
+                    }
+
+                    target.ContentRendered += OnContentRendered;
+                    target.Show();
+                }
+
+                if (windowInstance == null)
+                {
+                    windowInstance = createFunc();
+                    windowInstance.Closed += (s, args) =>
+                    {
+                        _readTimer?.Start();
+                        this.Activate();
+                    };
+
+                    ShowTargetWindow(windowInstance);
+                }
+                else
+                {
+                    ShowTargetWindow(windowInstance);
+                }
             }
-            else
+            catch (Exception ex)
             {
-                ShowTargetWindow(windowInstance);
+                overlay?.Close();
+                ShowErrorMsg($"切换窗口失败：{ex.Message}");
             }
         }
         private bool TryReconnect()

ParameterSettingsWindow.xaml.cs

@@ -131,44 +131,87 @@ namespace 自救器呼吸器综合检验仪
                 }
             }
 
-            void ShowTargetWindow(T target)
+            Window overlay = null;
+            try
             {
-                if (target.IsVisible)
+                overlay = new Window
                 {
-                    target.Activate();
+                    Owner = this,
-                    this.Hide();
+                    WindowStyle = WindowStyle.None,
-                    return;
+                    AllowsTransparency = true,
-                }
+                    Background = System.Windows.Media.Brushes.Transparent,
-
+                    ShowInTaskbar = false,
-                target.Opacity = 0;
+                    ResizeMode = ResizeMode.NoResize,
-                void OnContentRendered(object s, EventArgs e)
+                    Width = this.ActualWidth,
-                {
+                    Height = this.ActualHeight,
-                    target.ContentRendered -= OnContentRendered;
+                    Left = this.Left,
-                    var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                    Top = this.Top,
-                    target.BeginAnimation(Window.OpacityProperty, anim);
+                    ShowActivated = false,
-                    this.Hide();
+                    Topmost = true
-                    target.Activate();
-                }
-
-                target.ContentRendered += OnContentRendered;
-                target.Show();
-            }
-
-            if (windowInstance == null)
-            {
-                windowInstance = createFunc();
-                windowInstance.Closed += (s, args) =>
-                {
-                    _readTimer?.Start();
-                    this.Show();
-                    this.Activate();
                 };
 
-                ShowTargetWindow(windowInstance);
+                var grid = new Grid();
+                var tb = new TextBlock
+                {
+                    Text = "正在加载，请稍候...",
+                    Foreground = System.Windows.Media.Brushes.Black,
+                    Background = System.Windows.Media.Brushes.Transparent,
+                    HorizontalAlignment = HorizontalAlignment.Center,
+                    VerticalAlignment = VerticalAlignment.Bottom,
+                    Margin = new Thickness(0, 0, 0, 20),
+                    FontSize = 16
+                };
+                grid.Children.Add(tb);
+                overlay.Content = grid;
+
+                overlay.Show();
+
+                void ShowTargetWindow(T target)
+                {
+                    if (target.IsVisible)
+                    {
+                        target.Activate();
+                        this.Hide();
+                        overlay?.Close();
+                        return;
+                    }
+
+                    target.Opacity = 0;
+                    void OnContentRendered(object s, EventArgs e)
+                    {
+                        target.ContentRendered -= OnContentRendered;
+                        var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                        target.BeginAnimation(Window.OpacityProperty, anim);
+                        this.Hide();
+                        target.Activate();
+                        overlay?.Close();
+                    }
+
+                    target.ContentRendered += OnContentRendered;
+                    target.Show();
+                }
+
+                if (windowInstance == null)
+                {
+                    windowInstance = createFunc();
+                    windowInstance.Closed += (s, args) =>
+                    {
+                        _readTimer?.Start();
+                        this.Show();
+                        this.Activate();
+                    };
+
+                    ShowTargetWindow(windowInstance);
+                }
+                else
+                {
+                    ShowTargetWindow(windowInstance);
+                }
             }
-            else
+            catch (Exception ex)
             {
-                ShowTargetWindow(windowInstance);
+                overlay?.Close();
+                ShowErrorMsg($"切换窗口失败：{ex.Message}");
             }
         }
 

ReportWindow.xaml.cs

@@ -272,43 +272,86 @@ namespace 自救器呼吸器综合检验仪
                 }
             }
 
-            void ShowTargetWindow(T target)
+            Window overlay = null;
+            try
             {
-                if (target.IsVisible)
+                overlay = new Window
                 {
-                    target.Activate();
+                    Owner = this,
-                    this.Hide();
+                    WindowStyle = WindowStyle.None,
-                    return;
+                    AllowsTransparency = true,
-                }
+                    Background = System.Windows.Media.Brushes.Transparent,
-
+                    ShowInTaskbar = false,
-                target.Opacity = 0;
+                    ResizeMode = ResizeMode.NoResize,
-                void OnContentRendered(object s, EventArgs e)
+                    Width = this.ActualWidth,
-                {
+                    Height = this.ActualHeight,
-                    target.ContentRendered -= OnContentRendered;
+                    Left = this.Left,
-                    var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                    Top = this.Top,
-                    target.BeginAnimation(Window.OpacityProperty, anim);
+                    ShowActivated = false,
-                    this.Hide();
+                    Topmost = true
-                    target.Activate();
-                }
-
-                target.ContentRendered += OnContentRendered;
-                target.Show();
-            }
-
-            if (windowInstance == null)
-            {
-                windowInstance = createFunc();
-                windowInstance.Closed += (s, args) =>
-                {
-                    this.Show();
-                    this.Activate();
                 };
 
-                ShowTargetWindow(windowInstance);
+                var grid = new Grid();
+                var tb = new TextBlock
+                {
+                    Text = "正在加载，请稍候...",
+                    Foreground = System.Windows.Media.Brushes.Black,
+                    Background = System.Windows.Media.Brushes.Transparent,
+                    HorizontalAlignment = HorizontalAlignment.Center,
+                    VerticalAlignment = VerticalAlignment.Bottom,
+                    Margin = new Thickness(0, 0, 0, 20),
+                    FontSize = 16
+                };
+                grid.Children.Add(tb);
+                overlay.Content = grid;
+
+                overlay.Show();
+
+                void ShowTargetWindow(T target)
+                {
+                    if (target.IsVisible)
+                    {
+                        target.Activate();
+                        this.Hide();
+                        overlay?.Close();
+                        return;
+                    }
+
+                    target.Opacity = 0;
+                    void OnContentRendered(object s, EventArgs e)
+                    {
+                        target.ContentRendered -= OnContentRendered;
+                        var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                        target.BeginAnimation(Window.OpacityProperty, anim);
+                        this.Hide();
+                        target.Activate();
+                        overlay?.Close();
+                    }
+
+                    target.ContentRendered += OnContentRendered;
+                    target.Show();
+                }
+
+                if (windowInstance == null)
+                {
+                    windowInstance = createFunc();
+                    windowInstance.Closed += (s, args) =>
+                    {
+                        this.Show();
+                        this.Activate();
+                    };
+
+                    ShowTargetWindow(windowInstance);
+                }
+                else
+                {
+                    ShowTargetWindow(windowInstance);
+                }
             }
-            else
+            catch (Exception ex)
             {
-                ShowTargetWindow(windowInstance);
+                overlay?.Close();
+                //ShowErrorMsg($"切换窗口失败：{ex.Message}");
             }
         }
 

ReportWindow2.xaml.cs

@@ -290,43 +290,86 @@ namespace 自救器呼吸器综合检验仪
                 }
             }
 
-            void ShowTargetWindow(T target)
+            Window overlay = null;
+            try
             {
-                if (target.IsVisible)
+                overlay = new Window
                 {
-                    target.Activate();
+                    Owner = this,
-                    this.Hide();
+                    WindowStyle = WindowStyle.None,
-                    return;
+                    AllowsTransparency = true,
-                }
+                    Background = System.Windows.Media.Brushes.Transparent,
-
+                    ShowInTaskbar = false,
-                target.Opacity = 0;
+                    ResizeMode = ResizeMode.NoResize,
-                void OnContentRendered(object s, EventArgs e)
+                    Width = this.ActualWidth,
-                {
+                    Height = this.ActualHeight,
-                    target.ContentRendered -= OnContentRendered;
+                    Left = this.Left,
-                    var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                    Top = this.Top,
-                    target.BeginAnimation(Window.OpacityProperty, anim);
+                    ShowActivated = false,
-                    this.Hide();
+                    Topmost = true
-                    target.Activate();
-                }
-
-                target.ContentRendered += OnContentRendered;
-                target.Show();
-            }
-
-            if (windowInstance == null)
-            {
-                windowInstance = createFunc();
-                windowInstance.Closed += (s, args) =>
-                {
-                    this.Show();
-                    this.Activate();
                 };
 
-                ShowTargetWindow(windowInstance);
+                var grid = new Grid();
+                var tb = new TextBlock
+                {
+                    Text = "正在加载，请稍候...",
+                    Foreground = System.Windows.Media.Brushes.Black,
+                    Background = System.Windows.Media.Brushes.Transparent,
+                    HorizontalAlignment = HorizontalAlignment.Center,
+                    VerticalAlignment = VerticalAlignment.Bottom,
+                    Margin = new Thickness(0, 0, 0, 20),
+                    FontSize = 16
+                };
+                grid.Children.Add(tb);
+                overlay.Content = grid;
+
+                overlay.Show();
+
+                void ShowTargetWindow(T target)
+                {
+                    if (target.IsVisible)
+                    {
+                        target.Activate();
+                        this.Hide();
+                        overlay?.Close();
+                        return;
+                    }
+
+                    target.Opacity = 0;
+                    void OnContentRendered(object s, EventArgs e)
+                    {
+                        target.ContentRendered -= OnContentRendered;
+                        var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                        target.BeginAnimation(Window.OpacityProperty, anim);
+                        this.Hide();
+                        target.Activate();
+                        overlay?.Close();
+                    }
+
+                    target.ContentRendered += OnContentRendered;
+                    target.Show();
+                }
+
+                if (windowInstance == null)
+                {
+                    windowInstance = createFunc();
+                    windowInstance.Closed += (s, args) =>
+                    {
+                        this.Show();
+                        this.Activate();
+                    };
+
+                    ShowTargetWindow(windowInstance);
+                }
+                else
+                {
+                    ShowTargetWindow(windowInstance);
+                }
             }
-            else
+            catch (Exception ex)
             {
-                ShowTargetWindow(windowInstance);
+                overlay?.Close();
+                //ShowErrorMsg($"切换窗口失败：{ex.Message}");
             }
         }
 

ReportWindow3.xaml.cs

@@ -10,6 +10,7 @@ using System.Text;
 using System.Windows;
 using System.Windows.Controls;
 using 自救器呼吸器综合检验仪.Data;
+using System.Windows.Media;
 using System.Windows.Media.Animation;
 
 namespace 自救器呼吸器综合检验仪
@@ -288,43 +289,86 @@ namespace 自救器呼吸器综合检验仪
                 }
             }
 
-            void ShowTargetWindow(T target)
+            Window overlay = null;
+            try
             {
-                if (target.IsVisible)
+                overlay = new Window
                 {
-                    target.Activate();
+                    Owner = this,
-                    this.Hide();
+                    WindowStyle = WindowStyle.None,
-                    return;
+                    AllowsTransparency = true,
-                }
+                    Background = System.Windows.Media.Brushes.Transparent,
-
+                    ShowInTaskbar = false,
-                target.Opacity = 0;
+                    ResizeMode = ResizeMode.NoResize,
-                void OnContentRendered(object s, EventArgs e)
+                    Width = this.ActualWidth,
-                {
+                    Height = this.ActualHeight,
-                    target.ContentRendered -= OnContentRendered;
+                    Left = this.Left,
-                    var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                    Top = this.Top,
-                    target.BeginAnimation(Window.OpacityProperty, anim);
+                    ShowActivated = false,
-                    this.Hide();
+                    Topmost = true
-                    target.Activate();
-                }
-
-                target.ContentRendered += OnContentRendered;
-                target.Show();
-            }
-
-            if (windowInstance == null)
-            {
-                windowInstance = createFunc();
-                windowInstance.Closed += (s, args) =>
-                {
-                    this.Show();
-                    this.Activate();
                 };
 
-                ShowTargetWindow(windowInstance);
+                var grid = new Grid();
+                var tb = new TextBlock
+                {
+                    Text = "正在加载，请稍候...",
+                    Foreground = System.Windows.Media.Brushes.Black,
+                    Background = System.Windows.Media.Brushes.Transparent,
+                    HorizontalAlignment = HorizontalAlignment.Center,
+                    VerticalAlignment = VerticalAlignment.Bottom,
+                    Margin = new Thickness(0, 0, 0, 20),
+                    FontSize = 16
+                };
+                grid.Children.Add(tb);
+                overlay.Content = grid;
+
+                overlay.Show();
+
+                void ShowTargetWindow(T target)
+                {
+                    if (target.IsVisible)
+                    {
+                        target.Activate();
+                        this.Hide();
+                        overlay?.Close();
+                        return;
+                    }
+
+                    target.Opacity = 0;
+                    void OnContentRendered(object s, EventArgs e)
+                    {
+                        target.ContentRendered -= OnContentRendered;
+                        var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                        target.BeginAnimation(Window.OpacityProperty, anim);
+                        this.Hide();
+                        target.Activate();
+                        overlay?.Close();
+                    }
+
+                    target.ContentRendered += OnContentRendered;
+                    target.Show();
+                }
+
+                if (windowInstance == null)
+                {
+                    windowInstance = createFunc();
+                    windowInstance.Closed += (s, args) =>
+                    {
+                        this.Show();
+                        this.Activate();
+                    };
+
+                    ShowTargetWindow(windowInstance);
+                }
+                else
+                {
+                    ShowTargetWindow(windowInstance);
+                }
             }
-            else
+            catch (Exception ex)
             {
-                ShowTargetWindow(windowInstance);
+                overlay?.Close();
+                //ShowErrorMsg($"切换窗口失败：{ex.Message}");
             }
         }
 

ReportWindow4.xaml.cs

@@ -10,6 +10,7 @@ using System.Text;
 using System.Windows;
 using System.Windows.Controls;
 using 自救器呼吸器综合检验仪.Data;
+using System.Windows.Media;
 using System.Windows.Media.Animation;
 
 namespace 自救器呼吸器综合检验仪
@@ -329,43 +330,86 @@ namespace 自救器呼吸器综合检验仪
                 }
             }
 
-            void ShowTargetWindow(T target)
+            Window overlay = null;
+            try
             {
-                if (target.IsVisible)
+                overlay = new Window
                 {
-                    target.Activate();
+                    Owner = this,
-                    this.Hide();
+                    WindowStyle = WindowStyle.None,
-                    return;
+                    AllowsTransparency = true,
-                }
+                    Background = System.Windows.Media.Brushes.Transparent,
-
+                    ShowInTaskbar = false,
-                target.Opacity = 0;
+                    ResizeMode = ResizeMode.NoResize,
-                void OnContentRendered(object s, EventArgs e)
+                    Width = this.ActualWidth,
-                {
+                    Height = this.ActualHeight,
-                    target.ContentRendered -= OnContentRendered;
+                    Left = this.Left,
-                    var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                    Top = this.Top,
-                    target.BeginAnimation(Window.OpacityProperty, anim);
+                    ShowActivated = false,
-                    this.Hide();
+                    Topmost = true
-                    target.Activate();
-                }
-
-                target.ContentRendered += OnContentRendered;
-                target.Show();
-            }
-
-            if (windowInstance == null)
-            {
-                windowInstance = createFunc();
-                windowInstance.Closed += (s, args) =>
-                {
-                    this.Show();
-                    this.Activate();
                 };
 
-                ShowTargetWindow(windowInstance);
+                var grid = new Grid();
+                var tb = new TextBlock
+                {
+                    Text = "正在加载，请稍候...",
+                    Foreground = System.Windows.Media.Brushes.Black,
+                    Background = System.Windows.Media.Brushes.Transparent,
+                    HorizontalAlignment = HorizontalAlignment.Center,
+                    VerticalAlignment = VerticalAlignment.Bottom,
+                    Margin = new Thickness(0, 0, 0, 20),
+                    FontSize = 16
+                };
+                grid.Children.Add(tb);
+                overlay.Content = grid;
+
+                overlay.Show();
+
+                void ShowTargetWindow(T target)
+                {
+                    if (target.IsVisible)
+                    {
+                        target.Activate();
+                        this.Hide();
+                        overlay?.Close();
+                        return;
+                    }
+
+                    target.Opacity = 0;
+                    void OnContentRendered(object s, EventArgs e)
+                    {
+                        target.ContentRendered -= OnContentRendered;
+                        var anim = new DoubleAnimation(0, 1, TimeSpan.FromMilliseconds(200));
+                        target.BeginAnimation(Window.OpacityProperty, anim);
+                        this.Hide();
+                        target.Activate();
+                        overlay?.Close();
+                    }
+
+                    target.ContentRendered += OnContentRendered;
+                    target.Show();
+                }
+
+                if (windowInstance == null)
+                {
+                    windowInstance = createFunc();
+                    windowInstance.Closed += (s, args) =>
+                    {
+                        this.Show();
+                        this.Activate();
+                    };
+
+                    ShowTargetWindow(windowInstance);
+                }
+                else
+                {
+                    ShowTargetWindow(windowInstance);
+                }
             }
-            else
+            catch (Exception ex)
             {
-                ShowTargetWindow(windowInstance);
+                overlay?.Close();
+                MessageBox.Show($"切换窗口失败：{ex.Message}", "错误", MessageBoxButton.OK, MessageBoxImage.Error);
             }
         }