Improve autocomplete function

Author: CodingOctocat

IPConfig/Models/EditableIPConfigModel.cs

@@ -14,7 +14,7 @@
 namespace IPConfig.Models;
 
 public partial class EditableIPConfigModel : IPConfigModel,
-    IDeepCloneTo<EditableIPConfigModel>,
+    IDeepCloneable<EditableIPConfigModel>, IDeepCloneTo<EditableIPConfigModel>,
     IEditableObject, IRevertibleChangeTracking
 {
     private IPConfigModel _backup = IPConfigModel.Empty;
@@ -23,6 +23,11 @@ public partial class EditableIPConfigModel : IPConfigModel,
 
     public static new EditableIPConfigModel Empty => new("");
 
+    /// <summary>
+    /// 获取备份对象的副本。
+    /// </summary>
+    public IPConfigModel Backup => _backup.DeepClone();
+
     [JsonIgnore]
     public int Order { get; set; } = -1;
 
@@ -100,6 +105,18 @@ protected override void OnPropertyChanged(PropertyChangedEventArgs e)
         }
     }
 
+    #region IDeepCloneable
+
+    public new EditableIPConfigModel DeepClone()
+    {
+        var clone = Empty;
+        DeepCloneTo(clone);
+
+        return clone;
+    }
+
+    #endregion IDeepCloneable
+
     #region IDeepCloneTo
 
     public void DeepCloneTo(EditableIPConfigModel other)
@@ -118,7 +135,8 @@ public void BeginEdit()
     {
         if (!_inTxn)
         {
-            DeepCloneTo(_backup);
+            _backup = DeepClone();
+            OnPropertyChanged(nameof(Backup));
             _inTxn = true;
             OnPropertyChanged(nameof(IsChanged));
         }
@@ -139,6 +157,7 @@ public void EndEdit()
         if (_inTxn)
         {
             _backup = Empty;
+            OnPropertyChanged(nameof(Backup));
             _inTxn = false;
             OnPropertyChanged(nameof(IsChanged));
         }

IPConfig/Models/IPConfigModel.cs

@@ -18,7 +18,7 @@ namespace IPConfig.Models;
 /// 表示一个 IP 配置。
 /// <para>MVVM Toolkit 源生成器暂不支持 <seealso cref="JsonIgnoreAttribute"/> 等其他特性，可以使用传统的完整属性(SetProperty)代替。</para>
 /// </summary>
-public partial class IPConfigModel : ObservableValidator, IDeepCloneTo<IPConfigModel>
+public partial class IPConfigModel : ObservableValidator, IDeepCloneable<IPConfigModel>, IDeepCloneTo<IPConfigModel>
 {
     private IPv4Config _iPv4Config = new();
 
@@ -109,6 +109,18 @@ public static IPConfigModel GetUntitledWith(int order)
         IPv4Config.ClearErrors(propertyName);
     }
 
+    #region IDeepCloneable
+
+    public IPConfigModel DeepClone()
+    {
+        var clone = Empty;
+        DeepCloneTo(clone);
+
+        return clone;
+    }
+
+    #endregion IDeepCloneable
+
     #region IDeepCloneTo
 
     public void DeepCloneTo(IPConfigModel other)