优化更新

WPFUIAPP/ViewModel2.cs

@@ -0,0 +1,71 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+using CommunityToolkit.Mvvm.ComponentModel;
+using Wpf.Ui.Controls;
+
+namespace WPFUIAPP;
+public partial class ViewModel2 : ObservableObject
+{
+    [ObservableProperty]
+    private TreeModelCollection<TreeTestModel> treeTestModel = CreateTestModel();
+
+    public static TreeModelCollection<TreeTestModel> CreateTestModel()
+    {
+        return new TreeModelCollection<TreeTestModel>()
+        {
+            Children = new(
+            [
+                new()
+                {
+                    Column1 = "Test 1",
+                    Column2 = "Test 1",
+                    Column3 = "Test 1",
+                    Children = new(
+                    [
+                        new()
+                        {
+                            Column1 = "Test 1.1",
+                            Column2 = "Test 1.1",
+                            Column3 = "Test 1.1",
+                            Children = new(
+                            [
+                                new()
+                                {
+                                    Column1 = "Test 1.2",
+                                    Column2 = "Test 1.2",
+                                    Column3 = "Test 1.2",
+                                },
+                            ]),
+                        },
+                    ]),
+                },
+                new()
+                {
+                    Column1 = "Test 2",
+                    Column2 = "Test 2",
+                    Column3 = "Test 2",
+                }
+            ]),
+        };
+    }
+}
+
+[ObservableObject]
+public partial class TreeTestModel : TreeModelObject<TreeTestModel>
+{
+    [ObservableProperty]
+    private string? column1;
+
+    [ObservableProperty]
+    private string? column2;
+
+    [ObservableProperty]
+    private string? column3;
+
+    [ObservableProperty]
+    private bool isChecked = false;
+}