diff --git a/src/Ursa/Controls/IPv4Box/IPv4Box.cs b/src/Ursa/Controls/IPv4Box/IPv4Box.cs
index d79d155..41b4f52 100644
--- a/src/Ursa/Controls/IPv4Box/IPv4Box.cs
+++ b/src/Ursa/Controls/IPv4Box/IPv4Box.cs
@@ -281,15 +281,9 @@ public class IPv4Box: TemplatedControl
         {
             if (presenter?.Bounds.Contains(position)??false)
             {
-                _imClient.SetPresenter(presenter, this);
-                RaiseEvent(new TextInputMethodClientRequestedEventArgs()
-                {
-                    Source = presenter,
-                    Client = _imClient,
-                    RoutedEvent = InputElement.TextInputMethodClientRequestedEvent,
-                });
                 if (e.ClickCount == 1)
                 {
+                    _imClient.SetPresenter(presenter);
                     presenter.ShowCaret();
                     _currentActivePresenter = presenter;
                     var caretPosition = position.WithX(position.X - presenter.Bounds.X);
diff --git a/src/Ursa/Controls/IPv4Box/IPv4BoxInputMethodClient.cs b/src/Ursa/Controls/IPv4Box/IPv4BoxInputMethodClient.cs
index c6812ec..5bbdf21 100644
--- a/src/Ursa/Controls/IPv4Box/IPv4BoxInputMethodClient.cs
+++ b/src/Ursa/Controls/IPv4Box/IPv4BoxInputMethodClient.cs
@@ -18,21 +18,8 @@ public class IPv4BoxInputMethodClient:TextInputMethodClient
     public override Rect CursorRectangle { get; }
     public override TextSelection Selection { get; set; }
     private IPv4Box? _parent;
-    public void SetPresenter(TextPresenter? presenter, IPv4Box? parent)
+    public void SetPresenter(TextPresenter? presenter)
     {
-        if (this._parent != null)
-            this._parent.PropertyChanged -= new EventHandler<AvaloniaPropertyChangedEventArgs>(this.OnParentPropertyChanged);
-        this._parent = parent;
-        if (this._parent != null)
-            this._parent.PropertyChanged += new EventHandler<AvaloniaPropertyChangedEventArgs>(this.OnParentPropertyChanged);
-        TextPresenter presenter1 = this._presenter;
-        if (presenter1 != null)
-        {
-            presenter1.CaretBoundsChanged -= (EventHandler) ((s, e) => this.RaiseCursorRectangleChanged());
-        }
-        this._presenter = presenter;
-        if (this._presenter != null)
-            this._presenter.CaretBoundsChanged += (EventHandler) ((s, e) => this.RaiseCursorRectangleChanged());
         this.RaiseTextViewVisualChanged();
         this.RaiseCursorRectangleChanged();
     }