From e27abdd1ff971df78db0c122f9c24bd734652fb0 Mon Sep 17 00:00:00 2001
From: Alex Strelnik <astrelnik@scadaplus.ru>
Date: Tue, 7 May 2024 10:51:24 +0300
Subject: [PATCH] Subscribe to model changes in TreeDataGridCheckBoxCell

---
 .../Primitives/TreeDataGridCheckBoxCell.cs       | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/src/Avalonia.Controls.TreeDataGrid/Primitives/TreeDataGridCheckBoxCell.cs b/src/Avalonia.Controls.TreeDataGrid/Primitives/TreeDataGridCheckBoxCell.cs
index ad2a66d0..b6b1dea6 100644
--- a/src/Avalonia.Controls.TreeDataGrid/Primitives/TreeDataGridCheckBoxCell.cs
+++ b/src/Avalonia.Controls.TreeDataGrid/Primitives/TreeDataGridCheckBoxCell.cs
@@ -1,4 +1,5 @@
 using System;
+using System.ComponentModel;
 using Avalonia.Controls.Models.TreeDataGrid;
 using Avalonia.Controls.Selection;
 using Avalonia.Input;
@@ -70,6 +71,21 @@ public bool IsThreeState
             }
 
             base.Realize(factory, selection, model, columnIndex, rowIndex);
+            SubscribeToModelChanges();
+        }
+
+        public override void Unrealize()
+        {
+            UnsubscribeFromModelChanges();
+            base.Unrealize();
+        }
+        
+        protected override void OnModelPropertyChanged(object? sender, PropertyChangedEventArgs e)
+        {
+            base.OnModelPropertyChanged(sender, e);
+
+            if (e.PropertyName == nameof(CheckBoxCell.Value) && Model is CheckBoxCell checkBoxCell)
+                Value = checkBoxCell.Value;
         }
 
         protected override void OnPointerPressed(PointerPressedEventArgs e)