Fix ListView Details view cell retrieval and full-row accessibility

src/System.Windows.Forms/System/Windows/Forms/Controls/ListView/ListView.ListViewAccessibleObject.cs

@@ -179,6 +179,22 @@ private string GetItemStatus() => this.TryGetOwnerAs(out ListView? owningListVie
             return columnHeaders;
         }
 
+        internal override IRawElementProviderSimple.Interface? GetItem(int row, int column)
+        {
+            if (!this.TryGetOwnerAs(out ListView? owningListView)
+                || owningListView.View != View.Details
+                || row < 0
+                || row >= owningListView.Items.Count
+                || column < 0
+                || column >= owningListView.Columns.Count
+                || owningListView.Items[row].AccessibilityObject is not ListViewItem.ListViewItemDetailsAccessibleObject itemAccessibleObject)
+            {
+                return null;
+            }
+
+            return itemAccessibleObject.GetChild(column + itemAccessibleObject.FirstSubItemIndex);
+        }
+
         internal override IRawElementProviderFragment.Interface? GetFocus()
             => !this.IsOwnerHandleCreated(out ListView? owningListView)
                 ? null

src/System.Windows.Forms/System/Windows/Forms/Controls/ListView/ListViewItem.ListViewItemDetailsAccessibleObject.cs

@@ -22,6 +22,11 @@ public ListViewItemDetailsAccessibleObject(ListViewItem owningItem) : base(ownin
 
         private int LastChildIndex => HasImage ? _owningListView.Columns.Count : _owningListView.Columns.Count - 1;
 
+        public override string? Name => !_owningListView.FullRowSelect
+            ? base.Name
+            : string.Join(", ", Enumerable.Range(0, _owningListView.Columns.Count)
+                .Select(column => GetChild(column + FirstSubItemIndex)?.Name));
+
         protected override View View => View.Details;
 
         /// <summary>

src/test/unit/System.Windows.Forms/System/Windows/Forms/AccessibleObjects/ListVIew.ListViewAccessibleObjectTests.cs

@@ -202,6 +202,38 @@ public void ListViewAccessibleObject_EmptyList_GetChild_ReturnsCorrectValue()
         Assert.False(listView.IsHandleCreated);
     }
 
+    [WinFormsTheory]
+    [InlineData(false)]
+    [InlineData(true)]
+    public void ListViewAccessibleObject_GetItem_DetailsView_ReturnsSubItem(bool hasImage)
+    {
+        using ImageList imageList = new();
+        imageList.Images.Add(Form.DefaultIcon);
+        using ListView listView = new()
+        {
+            SmallImageList = imageList,
+            View = View.Details
+        };
+
+        listView.Columns.AddRange((ColumnHeader[])[new("Title"), new("Position")]);
+        ListViewItem item = new(["Item 1", "Position 1"], hasImage ? 0 : -1);
+        listView.Items.Add(item);
+        listView.CreateControl();
+
+        AccessibleObject actual = (AccessibleObject)listView.AccessibilityObject.GetItem(0, 1);
+
+        Assert.Same(item.SubItems[1].AccessibilityObject, actual);
+        Assert.Equal("Position 1", actual.Name);
+        Assert.Equal(
+            UIA_CONTROLTYPE_ID.UIA_TextControlTypeId,
+            (UIA_CONTROLTYPE_ID)(int)actual.GetPropertyValue(UIA_PROPERTY_ID.UIA_ControlTypePropertyId));
+        Assert.Null(listView.AccessibilityObject.GetItem(-1, 0));
+        Assert.Null(listView.AccessibilityObject.GetItem(0, -1));
+        Assert.Null(listView.AccessibilityObject.GetItem(1, 0));
+        Assert.Null(listView.AccessibilityObject.GetItem(0, 2));
+        Assert.True(listView.IsHandleCreated);
+    }
+
     [WinFormsFact]
     public void ListViewAccessibleObject_GetPropertyValue_returns_correct_values()
     {