初步完成变量历史记录修改

DMS.WPF/App.xaml.cs

@@ -294,6 +294,7 @@ public partial class App : System.Windows.Application
         services.AddTransient<MqttDialogViewModel>();
         services.AddTransient<MqttSelectionDialogViewModel>();
         services.AddTransient<MqttAliasBatchEditDialogViewModel>();
+        services.AddTransient<HistorySettingsDialogViewModel>();
         
         // 注册View视图
         services.AddSingleton<SplashWindow>();

DMS.WPF/Services/DialogService.cs

@@ -25,7 +25,8 @@ namespace DMS.WPF.Services
             { typeof(IsActiveDialogViewModel), typeof(IsActiveDialog) },
             { typeof(MqttDialogViewModel), typeof(MqttDialog) },
             { typeof(MqttSelectionDialogViewModel), typeof(MqttSelectionDialog) },
-            { typeof(MqttAliasBatchEditDialogViewModel), typeof(MqttAliasBatchEditDialog) }
+            { typeof(MqttAliasBatchEditDialogViewModel), typeof(MqttAliasBatchEditDialog) },
+            { typeof(HistorySettingsDialogViewModel), typeof(HistorySettingsDialog) }
             // Add other mappings here
             // ... other dialogs
         };

DMS.WPF/ViewModels/Dialogs/HistorySettingsDialogViewModel.cs

@@ -0,0 +1,47 @@
+using System.Collections.Generic;
+using System.Linq;
+using CommunityToolkit.Mvvm.ComponentModel;
+using CommunityToolkit.Mvvm.Input;
+
+namespace DMS.WPF.ViewModels.Dialogs
+{
+    public partial class HistorySettingsDialogViewModel : DialogViewModelBase<HistorySettingsResult>
+    {
+        [ObservableProperty]
+        private bool _isHistoryEnabled;
+
+        [ObservableProperty]
+        private double _historyDeadband;
+
+        public HistorySettingsDialogViewModel(bool currentIsHistoryEnabled, double currentHistoryDeadband)
+        {
+            IsHistoryEnabled = currentIsHistoryEnabled;
+            HistoryDeadband = currentHistoryDeadband;
+            Title = "修改历史记录设置";
+            PrimaryButText = "确定";
+        }
+
+        [RelayCommand]
+        private void PrimaryButton()
+        {
+            var result = new HistorySettingsResult
+            {
+                IsHistoryEnabled = IsHistoryEnabled,
+                HistoryDeadband = HistoryDeadband
+            };
+            Close(result);
+        }
+
+        [RelayCommand]
+        private void CancleButton()
+        {
+            Close(null);
+        }
+    }
+
+    public class HistorySettingsResult
+    {
+        public bool IsHistoryEnabled { get; set; }
+        public double HistoryDeadband { get; set; }
+    }
+}

DMS.WPF/ViewModels/VariableTableViewModel.cs

@@ -715,6 +715,55 @@ partial class VariableTableViewModel : ViewModelBase, INavigatable
         navigationService.NavigateToAsync(viewModel);
     }
 
+    /// <summary>
+    /// 修改选定变量的历史记录设置。
+    /// </summary>
+    [RelayCommand]
+    public async Task ChangeHistorySettings(IList<object> variablesToChange)
+    {
+        // 过滤出有效的VariableItemViewModel对象
+        var validVariables = variablesToChange?.OfType<VariableItemViewModel>()
+                                              .ToList();
+
+        // 检查是否有变量被选中
+        if (validVariables == null || !validVariables.Any())
+        {
+            _notificationService.ShowInfo("请选择要修改历史记录设置的变量");
+            return;
+        }
+
+        // 显示历史记录设置对话框，并传入第一个变量的当前设置作为默认值
+        var viewModel = new HistorySettingsDialogViewModel(
+            validVariables.First().IsHistoryEnabled,
+            validVariables.First().HistoryDeadband);
+        var result = await _dialogService.ShowDialogAsync(viewModel);
+        
+        if (result != null)
+        {
+            // 更新所有选定变量的历史记录设置
+            foreach (var variable in validVariables)
+            {
+                variable.IsHistoryEnabled = result.IsHistoryEnabled;
+                variable.HistoryDeadband = result.HistoryDeadband;
+                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} 个变量的历史记录设置");
+            }
+            else
+            {
+                _notificationService.ShowError("更新历史记录设置失败");
+            }
+        }
+    }
+
     /// <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/HistorySettingsDialog.xaml

@@ -0,0 +1,48 @@
+<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: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}"
+    d:DataContext="{d:DesignInstance vmd:HistorySettingsDialogViewModel}"
+    CloseButtonCommand="{Binding CancleButtonCommand}"
+    CloseButtonText="取消"
+    PrimaryButtonCommand="{Binding PrimaryButtonCommand}"
+    PrimaryButtonText="{Binding PrimaryButText}"
+    mc:Ignorable="d">
+    <ui:ContentDialog.Resources>
+        <valueConverts:EnumDescriptionConverter x:Key="EnumDescriptionConverter" />
+    </ui:ContentDialog.Resources>
+    <Grid Margin="20">
+        <Grid.RowDefinitions>
+            <RowDefinition Height="Auto" />
+            <RowDefinition Height="Auto" />
+        </Grid.RowDefinitions>
+        
+        <CheckBox 
+            Grid.Row="0"
+            Margin="0,10"
+            Content="启用历史记录"
+            IsChecked="{Binding IsHistoryEnabled}" />
+            
+        <StackPanel 
+            Grid.Row="1"
+            Margin="0,10"
+            Orientation="Horizontal">
+            <TextBlock 
+                VerticalAlignment="Center"
+                Text="历史记录死区值: " />
+            <TextBox 
+                Width="100"
+                Margin="10,0"
+                Text="{Binding HistoryDeadband}" />
+            <TextBlock 
+                VerticalAlignment="Center"
+                Text="(当值变化超过此值时才记录)" />
+        </StackPanel>
+    </Grid>
+</ui:ContentDialog>

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

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

DMS.WPF/Views/VariableTableView.xaml

@@ -209,11 +209,20 @@
                         </MenuItem.Icon>
                     </MenuItem>
                     
+                    <MenuItem
+                        Command="{Binding ChangeHistorySettingsCommand}"
+                        CommandParameter="{Binding PlacementTarget.SelectedItems, RelativeSource={RelativeSource AncestorType=ContextMenu}}"
+                        Header="修改历史记录">
+                        <MenuItem.Icon>
+                            <ui:FontIcon Icon="{x:Static ui:SegoeFluentIcons.Edit}" />
+                        </MenuItem.Icon>
+                    </MenuItem>
+                    
                     <MenuItem
                         Command="{Binding ToHistoryCommand}"
                         Header="查看历史记录">
                         <MenuItem.Icon>
-                            <ui:FontIcon Icon="{x:Static ui:SegoeFluentIcons.Add}" />
+                            <ui:FontIcon Icon="{x:Static ui:SegoeFluentIcons.History}" />
                         </MenuItem.Icon>
                     </MenuItem>
                 </ContextMenu>