csproj file upgraded to new format and add .net core 3.1

CHANGES

@@ -1,3 +1,15 @@
+4.1.9.3 2020-03-31
+- Set default method to chacha20-ietf-poly1305
+- Using hash in PAC URL (#2759)
+- Rename and translate title of statistics form (#2768)
+- Russian translation (#2767)
+- Refine Updated Notification logic
+- Using NLog (#2783)
+- Bug fix: wrong server in tray menu (#2782)
+- Deprecate unsafe encryption method (#2757, #2801)
+- Bug fix: server config is overwritten by others when moving up/down (#2830)
+- Other minor bug fixes and improvements
+
 4.1.9.2 2019-12-25
 - Fix i18n issues (#2740, #2741)
 

shadowsocks-csharp/Controller/Service/UpdateChecker.cs

@@ -26,7 +26,7 @@ public class UpdateChecker
         public string LatestVersionLocalName;
         public event EventHandler CheckUpdateCompleted;
 
-        public const string Version = "4.1.9.2";
+        public const string Version = "4.1.9.3";
 
         private class CheckUpdateTimer : System.Timers.Timer
         {

shadowsocks-csharp/Util/Util.cs

@@ -279,8 +279,11 @@ public static void OpenInBrowser(string url)
                 // hack because of this: https://github.com/dotnet/corefx/issues/10361
                 if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
                 {
-                    url = url.Replace("&", "^&");
-                    Process.Start(new ProcessStartInfo("cmd", $"/c start {url}") { CreateNoWindow = true });
+                    Process.Start(new ProcessStartInfo(url)
+                    {
+                        UseShellExecute = true,
+                        Verb = "open"
+                    });
                 }
                 else if (RuntimeInformation.IsOSPlatform(OSPlatform.Linux))
                 {

shadowsocks-csharp/View/ConfigForm.cs

@@ -494,21 +494,18 @@ private void MoveDownButton_Click(object sender, EventArgs e)
 
         private void MoveConfigItem(int step)
         {
-            int index = ServersListBox.SelectedIndex;
-            Server server = _modifiedConfiguration.configs[index];
-            object item = ServersListBox.Items[index];
+            var server = _modifiedConfiguration.configs[_lastSelectedIndex];
+            var newIndex = _lastSelectedIndex + step;
 
-            _modifiedConfiguration.configs.Remove(server);
-            _modifiedConfiguration.configs.Insert(index + step, server);
-            _modifiedConfiguration.index += step;
+            _modifiedConfiguration.configs.RemoveAt(_lastSelectedIndex);
+            _modifiedConfiguration.configs.Insert(newIndex, server);
 
             ServersListBox.BeginUpdate();
-            ServersListBox.Enabled = false;
-            _lastSelectedIndex = index + step;
-            ServersListBox.Items.Remove(item);
-            ServersListBox.Items.Insert(index + step, item);
-            ServersListBox.Enabled = true;
-            ServersListBox.SelectedIndex = index + step;
+
+            LoadServerNameListToUI(_modifiedConfiguration);
+
+            _lastSelectedIndex = newIndex;
+            ServersListBox.SelectedIndex = newIndex;
             ServersListBox.EndUpdate();
 
             UpdateButtons();

shadowsocks-csharp/View/MenuViewController.cs

@@ -38,7 +38,7 @@ public class MenuViewController
         private ToolStripMenuItem disableItem;
         private ToolStripMenuItem AutoStartupItem;
         private ToolStripMenuItem ShareOverLANItem;
-        private ToolStripSeparator SeperatorItem;
+        private ToolStripSeparator  SeperatorItem;
         private ToolStripMenuItem ConfigItem;
         private ToolStripMenuItem ServersItem;
         private ToolStripMenuItem globalModeItem;