设备编辑管理界面

DeviceEditModule/ViewModels/DialogTabItemVM.cs

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+using Prism.Commands;
+using Prism.Mvvm;
+using System;
+
+namespace DeviceEditModule.ViewModels
+{
+    /// <summary>
+    /// 弹窗管理器中单个 Tab 项的 ViewModel。
+    /// 由 <see cref="DialogMangerViewModel"/> 在收到 AddDialogTabEvent 时创建，
+    /// 通过构造函数注入选中/关闭的回调，保持与父 ViewModel 的低耦合。
+    /// </summary>
+    public class DialogTabItemVM : BindableBase
+    {
+        #region 属性
+
+        private string _title = string.Empty;
+        /// <summary>Tab 标签页上显示的标题。</summary>
+        public string Title
+        {
+            get => _title;
+            set => SetProperty(ref _title, value);
+        }
+
+        private object? _content;
+        /// <summary>Tab 内容区域（通常为 UserControl 实例）。</summary>
+        public object? Content
+        {
+            get => _content;
+            set => SetProperty(ref _content, value);
+        }
+
+        private bool _isSelected;
+        /// <summary>是否为当前激活 Tab（用于切换选中态样式）。</summary>
+        public bool IsSelected
+        {
+            get => _isSelected;
+            set => SetProperty(ref _isSelected, value);
+        }
+
+        #endregion
+
+        #region 命令
+
+        /// <summary>点击 Tab 标题激活该 Tab。</summary>
+        public DelegateCommand SelectCommand { get; }
+
+        /// <summary>点击 Tab 上的 × 关闭并移除该 Tab。</summary>
+        public DelegateCommand CloseCommand { get; }
+
+        #endregion
+
+        /// <param name="onSelect">父 VM 提供的激活回调。</param>
+        /// <param name="onClose">父 VM 提供的关闭回调。</param>
+        public DialogTabItemVM(Action<DialogTabItemVM> onSelect, Action<DialogTabItemVM> onClose)
+        {
+            SelectCommand = new DelegateCommand(() => onSelect(this));
+            CloseCommand  = new DelegateCommand(() => onClose(this));
+        }
+    }
+}