初步完成报警设置

DMS.WPF/App.xaml.cs

@@ -295,6 +295,7 @@ public partial class App : System.Windows.Application
         services.AddTransient<MqttSelectionDialogViewModel>();
         services.AddTransient<MqttAliasBatchEditDialogViewModel>();
         services.AddTransient<HistorySettingsDialogViewModel>();
+        services.AddTransient<AlarmSettingsDialogViewModel>();
         
         // 注册View视图
         services.AddSingleton<SplashWindow>();

DMS.WPF/Services/DialogService.cs

@@ -26,7 +26,8 @@ namespace DMS.WPF.Services
             { typeof(MqttDialogViewModel), typeof(MqttDialog) },
             { typeof(MqttSelectionDialogViewModel), typeof(MqttSelectionDialog) },
             { typeof(MqttAliasBatchEditDialogViewModel), typeof(MqttAliasBatchEditDialog) },
-            { typeof(HistorySettingsDialogViewModel), typeof(HistorySettingsDialog) }
+            { typeof(HistorySettingsDialogViewModel), typeof(HistorySettingsDialog) },
+            { typeof(AlarmSettingsDialogViewModel), typeof(AlarmSettingsDialog) }
             // Add other mappings here
             // ... other dialogs
         };

DMS.WPF/ViewModels/Dialogs/AlarmSettingsDialogViewModel.cs

@@ -0,0 +1,51 @@
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+
+namespace DMS.WPF.ViewModels.Dialogs
+{
+    public partial class AlarmSettingsDialogViewModel : DialogViewModelBase<AlarmSettingsResult>
+    {
+        [ObservableProperty]
+        private bool _isAlarmEnabled;
+
+        [ObservableProperty]
+        private double _alarmMinValue;
+
+        [ObservableProperty]
+        private double _alarmMaxValue;
+
+        public AlarmSettingsDialogViewModel(bool currentIsAlarmEnabled, double currentAlarmMinValue, double currentAlarmMaxValue)
+        {
+            IsAlarmEnabled = currentIsAlarmEnabled;
+            AlarmMinValue = currentAlarmMinValue;
+            AlarmMaxValue = currentAlarmMaxValue;
+            Title = "修改报警设置";
+            PrimaryButText = "确定";
+        }
+
+        [RelayCommand]
+        private void PrimaryButton()
+        {
+            var result = new AlarmSettingsResult
+            {
+                IsAlarmEnabled = IsAlarmEnabled,
+                AlarmMinValue = AlarmMinValue,
+                AlarmMaxValue = AlarmMaxValue
+            };
+            Close(result);
+        }
+
+        [RelayCommand]
+        private void CancleButton()
+        {
+            Close(null);
+        }
+    }
+
+    public class AlarmSettingsResult
+    {
+        public bool IsAlarmEnabled { get; set; }
+        public double AlarmMinValue { get; set; }
+        public double AlarmMaxValue { get; set; }
+    }
+}

DMS.WPF/ViewModels/VariableTableViewModel.cs

@@ -764,6 +764,57 @@ partial class VariableTableViewModel : ViewModelBase, INavigatable
         }
     }
 
+    /// <summary>
+    /// 修改选定变量的报警设置。
+    /// </summary>
+    [RelayCommand]
+    public async Task ChangeAlarmSettings()
+    {
+        // 检查是否有变量被选中
+        if (SelectedVariables.Count == 0)
+        {
+            _notificationService.ShowInfo("请选择要修改报警设置的变量");
+            return;
+        }
+
+        // 获取选中的变量列表
+        var validVariables = SelectedVariables.Cast<VariableItemViewModel>()
+                                              .ToList();
+
+        // 显示报警设置对话框，并传入第一个变量的当前报警设置作为默认值
+        var viewModel = new AlarmSettingsDialogViewModel(
+            validVariables.First().IsAlarmEnabled,
+            validVariables.First().AlarmMinValue,
+            validVariables.First().AlarmMaxValue);
+        var result = await _dialogService.ShowDialogAsync(viewModel);
+        
+        if (result != null)
+        {
+            // 更新所有选定变量的报警设置
+            foreach (var variable in validVariables)
+            {
+                variable.IsAlarmEnabled = result.IsAlarmEnabled;
+                variable.AlarmMinValue = result.AlarmMinValue;
+                variable.AlarmMaxValue = result.AlarmMaxValue;
+                variable.UpdatedAt = DateTime.Now;
+            }
+
+            // 批量更新数据库中的变量数据
+            var variableDtos = _mapper.Map<List<VariableDto>>(validVariables);
+            var updateResult = await _variableAppService.UpdateVariablesAsync(variableDtos);
+
+            if (updateResult > 0)
+            {
+                // 显示成功通知
+                _notificationService.ShowSuccess($"已成功更新 {validVariables.Count} 个变量的报警设置");
+            }
+            else
+            {
+                _notificationService.ShowError("更新报警设置失败");
+            }
+        }
+    }
+
     /// <summary>
     /// 当变量表的启用/禁用状态改变时调用。
     /// 更新数据库中变量表的激活状态，并显示相应的通知。

DMS.WPF/Views/Dialogs/AlarmSettingsDialog.xaml

@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ui:ContentDialog x:Class="DMS.WPF.Views.Dialogs.AlarmSettingsDialog"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
+             xmlns:ui="http://schemas.inkore.net/lib/ui/wpf/modern"
+             xmlns:valueConverts="clr-namespace:DMS.WPF.ValueConverts"
+             xmlns:vmd="clr-namespace:DMS.WPF.ViewModels.Dialogs"
+             mc:Ignorable="d" 
+             d:DataContext="{d:DesignInstance vmd:AlarmSettingsDialogViewModel}"
+             Title="{Binding Title}"
+             PrimaryButtonText="{Binding PrimaryButText}"
+             CloseButtonText="取消"
+             PrimaryButtonCommand="{Binding PrimaryButtonCommand}"
+             CloseButtonCommand="{Binding CancleButtonCommand}">
+    <ui:ContentDialog.Resources>
+        <valueConverts:EnumDescriptionConverter x:Key="EnumDescriptionConverter" />
+    </ui:ContentDialog.Resources>
+    <Grid Margin="20">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+        </Grid.RowDefinitions>
+        
+        <CheckBox 
+            Grid.Row="0"
+            Margin="0,10"
+            Content="启用报警"
+            IsChecked="{Binding IsAlarmEnabled}" />
+            
+        <StackPanel 
+            Grid.Row="1"
+            Margin="0,10"
+            Orientation="Horizontal">
+            <TextBlock 
+                VerticalAlignment="Center"
+                Text="报警最小值: " />
+            <TextBox 
+                Width="100"
+                Margin="10,0"
+                Text="{Binding AlarmMinValue}" />
+        </StackPanel>
+        
+        <StackPanel 
+            Grid.Row="2"
+            Margin="0,10"
+            Orientation="Horizontal">
+            <TextBlock 
+                VerticalAlignment="Center"
+                Text="报警最大值: " />
+            <TextBox 
+                Width="100"
+                Margin="10,0"
+                Text="{Binding AlarmMaxValue}" />
+        </StackPanel>
+        
+        <TextBlock 
+            Grid.Row="3"
+            Margin="0,10"
+            FontStyle="Italic"
+            Text="注意：最小值应小于最大值，否则可能导致报警异常" />
+    </Grid>
+</ui:ContentDialog>

DMS.WPF/Views/Dialogs/AlarmSettingsDialog.xaml.cs

@@ -0,0 +1,21 @@
+using System.Windows;
+using DMS.WPF.ViewModels.Dialogs;
+
+namespace DMS.WPF.Views.Dialogs
+{
+    /// <summary>
+    /// AlarmSettingsDialog.xaml 的交互逻辑
+    /// </summary>
+    public partial class AlarmSettingsDialog 
+    {
+        public AlarmSettingsDialog()
+        {
+            InitializeComponent();
+        }
+        
+        public AlarmSettingsDialog(AlarmSettingsDialogViewModel viewModel) : this()
+        {
+            DataContext = viewModel;
+        }
+    }
+}

DMS.WPF/Views/Dialogs/HistorySettingsDialog.xaml

@@ -1,19 +1,19 @@
-<ui:ContentDialog
-    x:Class="DMS.WPF.Views.Dialogs.HistorySettingsDialog"
+<?xml version="1.0" encoding="utf-8"?>
+<ui:ContentDialog x:Class="DMS.WPF.Views.Dialogs.HistorySettingsDialog"
              xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
              xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
-    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
              xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" 
+             xmlns:d="http://schemas.microsoft.com/expression/blend/2008" 
              xmlns:ui="http://schemas.inkore.net/lib/ui/wpf/modern"
              xmlns:valueConverts="clr-namespace:DMS.WPF.ValueConverts"
              xmlns:vmd="clr-namespace:DMS.WPF.ViewModels.Dialogs"
-    Title="{Binding Title}"
+             mc:Ignorable="d" 
              d:DataContext="{d:DesignInstance vmd:HistorySettingsDialogViewModel}"
-    CloseButtonCommand="{Binding CancleButtonCommand}"
+             Title="{Binding Title}"
+             PrimaryButtonText="{Binding PrimaryButText}"
              CloseButtonText="取消"
              PrimaryButtonCommand="{Binding PrimaryButtonCommand}"
-    PrimaryButtonText="{Binding PrimaryButText}"
-    mc:Ignorable="d">
+             CloseButtonCommand="{Binding CancleButtonCommand}">
     <ui:ContentDialog.Resources>
         <valueConverts:EnumDescriptionConverter x:Key="EnumDescriptionConverter" />
     </ui:ContentDialog.Resources>

DMS.WPF/Views/VariableTableView.xaml

@@ -218,6 +218,14 @@
                         </MenuItem.Icon>
                     </MenuItem>
                     
+                    <MenuItem
+                        Command="{Binding ChangeAlarmSettingsCommand}"
+                        Header="修改报警设置">
+                        <MenuItem.Icon>
+                            <ui:FontIcon Icon="{x:Static ui:SegoeFluentIcons.Edit}" />
+                        </MenuItem.Icon>
+                    </MenuItem>
+                    
                     <MenuItem
                         Command="{Binding ToHistoryCommand}"
                         Header="查看历史记录">