From 0086b17854db1245fd9b660d38d1cf7ce688b40d Mon Sep 17 00:00:00 2001
From: vczh <vczh@outlook.com>
Date: Tue, 26 Dec 2023 21:02:25 -0800
Subject: [PATCH] Use BindableListView.NotifyItemDataModified in tutorial to
 improve performance

---
 Tutorial/GacUI_Controls/AddressBook/Main.cpp                | 6 ------
 Tutorial/GacUI_Controls/AddressBook/UI/Resource.xml         | 5 +++++
 .../AddressBook/UI/Source/DemoPartialClasses.cpp            | 4 ++++
 3 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/Tutorial/GacUI_Controls/AddressBook/Main.cpp b/Tutorial/GacUI_Controls/AddressBook/Main.cpp
index 3c090e1f..34135695 100644
--- a/Tutorial/GacUI_Controls/AddressBook/Main.cpp
+++ b/Tutorial/GacUI_Controls/AddressBook/Main.cpp
@@ -122,12 +122,6 @@ public:
 		birthday = _birthday;
 		phone = _phone;
 		address = _address;
-
-		vint index = category->contacts.IndexOf(this);
-		if (index != -1)
-		{
-			category->contacts.NotifyUpdate(index, 1);
-		}
 	}
 };
 
diff --git a/Tutorial/GacUI_Controls/AddressBook/UI/Resource.xml b/Tutorial/GacUI_Controls/AddressBook/UI/Resource.xml
index df95882d..4b3854b3 100644
--- a/Tutorial/GacUI_Controls/AddressBook/UI/Resource.xml
+++ b/Tutorial/GacUI_Controls/AddressBook/UI/Resource.xml
@@ -160,6 +160,11 @@
                   window.MoveToScreenCenter();
                   window.SetContact(ViewModel.SelectedContact);
                   $Await window.ShowModalAsync(self);
+                  
+                  if (window.Ready)
+                  {
+                    listViewContacts.NotifyItemDataModified(listViewContacts.SelectedItemIndex, 1);
+                  }
                   delete window;
                 }
               ]]>
diff --git a/Tutorial/GacUI_Controls/AddressBook/UI/Source/DemoPartialClasses.cpp b/Tutorial/GacUI_Controls/AddressBook/UI/Source/DemoPartialClasses.cpp
index a2a4e2d4..77b781b8 100644
--- a/Tutorial/GacUI_Controls/AddressBook/UI/Source/DemoPartialClasses.cpp
+++ b/Tutorial/GacUI_Controls/AddressBook/UI/Source/DemoPartialClasses.cpp
@@ -1378,6 +1378,10 @@ Closures
 								throw ::vl::Exception(::vl::__vwsn::This(::vl::__vwsn::This(__vwsn_co_result_.Obj())->GetFailure().Obj())->GetMessage());
 							}
 						}
+						if (::vl::__vwsn::This(__vwsn_co0_window)->Ready)
+						{
+							::vl::__vwsn::This(__vwsnthis_0->listViewContacts)->NotifyItemDataModified(::vl::__vwsn::This(__vwsnthis_0->listViewContacts)->GetSelectedItemIndex(), static_cast<::vl::vint>(1));
+						}
 						::vl::__vwsn::This(__vwsn_co0_window)->Dispose(true);
 						this->SetStatus(::vl::reflection::description::CoroutineStatus::Stopped);
 						return;