From 42dc2a0fc6521643f1e91bca83b8507674f1da0c Mon Sep 17 00:00:00 2001
From: daleclack <daleclack1@foxmail.com>
Date: Thu, 11 Jan 2024 19:12:29 +0800
Subject: [PATCH] The model for dropdown should has no selection

---
 Gtkmm4/gtk157_editlist/src/MainWin.cc | 8 +++++---
 Gtkmm4/gtk157_editlist/src/MainWin.hh | 2 +-
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/Gtkmm4/gtk157_editlist/src/MainWin.cc b/Gtkmm4/gtk157_editlist/src/MainWin.cc
index 9777a13..372e6f0 100644
--- a/Gtkmm4/gtk157_editlist/src/MainWin.cc
+++ b/Gtkmm4/gtk157_editlist/src/MainWin.cc
@@ -22,7 +22,9 @@ MainWin::MainWin()
 
     // Create List for column View
     main_list = Gio::ListStore<ModelColumns>::create();
-    selection = Gtk::SingleSelection::create(main_list);
+
+    // The list for dropdown to select should has no selection
+    selection = Gtk::NoSelection::create(main_list);
     main_column_view.set_model(selection);
 
     // Add items
@@ -162,13 +164,13 @@ void MainWin::bind_version(const Glib::RefPtr<Gtk::ListItem> &item)
 void MainWin::btnadd_clicked()
 {
     // Append a item to the list
-    main_list->append(ModelColumns::create(" ", " "));
+    main_list->append(ModelColumns::create("", ""));
 }
 
 void MainWin::btnremove_clicked()
 {
     // Get Position of item
-    auto pos = selection->get_selected();
+    auto pos = main_list->get_n_items() - 1;
 
     // Remove item
     main_list->remove(pos);
diff --git a/Gtkmm4/gtk157_editlist/src/MainWin.hh b/Gtkmm4/gtk157_editlist/src/MainWin.hh
index 07f1df0..33b1c44 100644
--- a/Gtkmm4/gtk157_editlist/src/MainWin.hh
+++ b/Gtkmm4/gtk157_editlist/src/MainWin.hh
@@ -69,7 +69,7 @@ public:
 private:
     // Main list object for branchs and versions
     Glib::RefPtr<Gio::ListStore<ModelColumns>> main_list;
-    Glib::RefPtr<Gtk::SingleSelection> selection;
+    Glib::RefPtr<Gtk::NoSelection> selection;
 
     // Factory to renderer string for dropdown
     Glib::RefPtr<Gtk::SignalListItemFactory> drop_factory;