修复删除设备时的错误

DMS.Application/Interfaces/IEventService.cs

@@ -23,6 +23,18 @@ public interface IEventService
     /// <param name="e">设备状态改变事件参数</param>
     void RaiseDeviceActiveChanged(object sender, DeviceActiveChangedEventArgs e);
 
+    /// <summary>
+    /// 设备添加事件
+    /// </summary>
+    event EventHandler<DeviceChangedEventArgs> OnDeviceChanged;
+
+    /// <summary>
+    /// 触发设备添加事件
+    /// </summary>
+    /// <param name="sender">事件发送者</param>
+    /// <param name="e">设备变更事件参数</param>
+    void RaiseDeviceChanged(object sender, DeviceChangedEventArgs e);
+
     #endregion
 
     #region 变量事件

DMS.Application/Services/EventService.cs

@@ -29,6 +29,11 @@ public class EventService : IEventService
     /// </summary>
     public event EventHandler<DeviceConnectChangedEventArgs> OnDeviceConnectChanged;
 
+    /// <summary>
+    /// 设备添加事件
+    /// </summary>
+    public event EventHandler<DeviceChangedEventArgs> OnDeviceChanged;
+
 
     /// <summary>
     /// 触发设备状态改变事件
@@ -58,6 +63,16 @@ public class EventService : IEventService
 
     }
 
+    /// <summary>
+    /// 触发设备添加事件
+    /// </summary>
+    /// <param name="sender">事件发送者</param>
+    /// <param name="e">设备变更事件参数</param>
+    public void RaiseDeviceChanged(object sender, DeviceChangedEventArgs e)
+    {
+        OnDeviceChanged?.Invoke(sender, e);
+    }
+
     #endregion
 
     #region 变量事件

DMS.WPF/Services/DeviceDataService.cs

@@ -3,6 +3,7 @@ using System.Windows.Threading;
 using AutoMapper;
 using CommunityToolkit.Mvvm.ComponentModel;
 using DMS.Application.DTOs;
+using DMS.Application.Events;
 using DMS.Application.Interfaces;
 using DMS.Core.Enums;
 using DMS.Core.Events;
@@ -133,6 +134,7 @@ public class DeviceDataService : IDeviceDataService
         // 添加null检查
         _menuDataService.BuildMenuTrees();
         
+
         return addDto;
     }
 
@@ -152,7 +154,8 @@ public class DeviceDataService : IDeviceDataService
         
 
         // 从界面删除设备相关数据集
-        foreach (var variableTable in device.VariableTables)
+        var variableTablesCopy = device.VariableTables.ToList();
+        foreach (var variableTable in variableTablesCopy)
         {
             await  _variableTableDataService.DeleteVariableTable(variableTable);
         }
@@ -164,6 +167,7 @@ public class DeviceDataService : IDeviceDataService
         }
         _dataStorageService.Devices.Remove(device.Id);
         
+
         return true;
     }
 

DMS.WPF/ViewModels/DevicesViewModel.cs

@@ -137,6 +137,7 @@ public partial class DevicesViewModel : ViewModelBase, INavigatable
                 if (addDto != null && addDto.Device != null && _notificationService != null)
                 {
                     _notificationService.ShowSuccess($"设备添加成功：{addDto.Device.Name}");
+                    
                 }
                 else if (_notificationService != null)
                 {