Обновление до .NET 9

Pf2eViewer/EntityTreeViewer/EntityTreeViewerControl.cs

@@ -1,4 +1,5 @@
 using System.Collections.Generic;
+using System.ComponentModel;
 using Pf2eViewer.EntityTreeViewer;
 
 namespace Pf2eViewer.EntityTreeViewer;
@@ -11,6 +12,7 @@ public sealed partial class EntityTreeViewerControl : UserControl
 
     private int _depthSize = 20;
 
+    [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
     public int ItemHeight
     {
         get => _itemHeight;
@@ -21,6 +23,7 @@ public sealed partial class EntityTreeViewerControl : UserControl
         }
     }
 
+    [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
     public EntityView? EntityView
     {
         get => _entityView;
@@ -31,6 +34,7 @@ public sealed partial class EntityTreeViewerControl : UserControl
         }
     }
 
+    [DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
     public int DepthSize
     {
         get => _depthSize;
@@ -41,6 +45,7 @@ public sealed partial class EntityTreeViewerControl : UserControl
         }
     }
 
+    [DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
     public int NameWidth { get; private set; } = 200;
 
     private readonly List<StructureField> _rows = [];