diff --git a/v2rayN/ServiceLib/Global.cs b/v2rayN/ServiceLib/Global.cs
index ffab8d77..c0c99750 100644
--- a/v2rayN/ServiceLib/Global.cs
+++ b/v2rayN/ServiceLib/Global.cs
@@ -57,6 +57,9 @@ public class Global
     public const string HttpsProtocol = "https://";
     public const string SocksProtocol = "socks://";
     public const string Socks5Protocol = "socks5://";
+    public const string AsIs = "AsIs";
+    public const string IPIfNonMatch = "IPIfNonMatch";
+    public const string IPOnDemand = "IPOnDemand";
 
     public const string UserEMail = "t@t.tt";
     public const string AutoRunRegPath = @"Software\Microsoft\Windows\CurrentVersion\Run";
@@ -288,9 +291,9 @@ public class Global
 
     public static readonly List<string> DomainStrategies =
     [
-        "AsIs",
-            "IPIfNonMatch",
-            "IPOnDemand"
+        AsIs,
+        IPIfNonMatch,
+        IPOnDemand
     ];
 
     public static readonly List<string> DomainStrategies4Singbox =
diff --git a/v2rayN/ServiceLib/Handler/ConfigHandler.cs b/v2rayN/ServiceLib/Handler/ConfigHandler.cs
index c05424a2..981fd2f5 100644
--- a/v2rayN/ServiceLib/Handler/ConfigHandler.cs
+++ b/v2rayN/ServiceLib/Handler/ConfigHandler.cs
@@ -2262,6 +2262,7 @@ public class ConfigHandler
 
         return 0;
     }
+
     public static async Task<int> SaveFullConfigTemplate(Config config, FullConfigTemplateItem item)
     {
         if (item == null)
diff --git a/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs b/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs
index 7d38ccfd..fa2b14d8 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigSingboxService.cs
@@ -1329,7 +1329,7 @@ public class CoreConfigSingboxService
                 action = "resolve",
                 strategy = domainStrategy
             };
-            if (_config.RoutingBasicItem.DomainStrategy == "IPOnDemand")
+            if (_config.RoutingBasicItem.DomainStrategy == Global.IPOnDemand)
             {
                 singboxConfig.route.rules.Add(resolveRule);
             }
@@ -1351,7 +1351,7 @@ public class CoreConfigSingboxService
                     }
                 }
             }
-            if (_config.RoutingBasicItem.DomainStrategy == "IPIfNonMatch")
+            if (_config.RoutingBasicItem.DomainStrategy == Global.IPIfNonMatch)
             {
                 singboxConfig.route.rules.Add(resolveRule);
                 foreach (var item2 in ipRules)
diff --git a/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigV2rayService.cs b/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigV2rayService.cs
index 62bf2b22..62c2e182 100644
--- a/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigV2rayService.cs
+++ b/v2rayN/ServiceLib/Services/CoreConfig/CoreConfigV2rayService.cs
@@ -177,7 +177,7 @@ public class CoreConfigV2rayService
                     rule.balancerTag = balancer.tag;
                 }
             }
-            if (v2rayConfig.routing.domainStrategy == "IPIfNonMatch")
+            if (v2rayConfig.routing.domainStrategy == Global.IPIfNonMatch)
             {
                 v2rayConfig.routing.rules.Add(new()
                 {
@@ -1145,7 +1145,7 @@ public class CoreConfigV2rayService
             {
                 var result = await GenDnsCompatible(node, v2rayConfig);
 
-                if (v2rayConfig.routing.domainStrategy == "IPIfNonMatch")
+                if (v2rayConfig.routing.domainStrategy == Global.IPIfNonMatch)
                 {
                     // DNS routing
                     v2rayConfig.dns.tag = Global.DnsTag;
@@ -1179,7 +1179,7 @@ public class CoreConfigV2rayService
             await GenDnsServers(node, v2rayConfig, simpleDNSItem);
             await GenDnsHosts(v2rayConfig, simpleDNSItem);
 
-            if (v2rayConfig.routing.domainStrategy == "IPIfNonMatch")
+            if (v2rayConfig.routing.domainStrategy == Global.IPIfNonMatch)
             {
                 // DNS routing
                 v2rayConfig.dns.tag = Global.DnsTag;
diff --git a/v2rayN/ServiceLib/ViewModels/FullConfigTemplateViewModel.cs b/v2rayN/ServiceLib/ViewModels/FullConfigTemplateViewModel.cs
index 3aa618bf..f36a7fb6 100644
--- a/v2rayN/ServiceLib/ViewModels/FullConfigTemplateViewModel.cs
+++ b/v2rayN/ServiceLib/ViewModels/FullConfigTemplateViewModel.cs
@@ -1,12 +1,13 @@
 using System.Reactive;
-using DynamicData.Binding;
 using ReactiveUI;
 using ReactiveUI.Fody.Helpers;
 
 namespace ServiceLib.ViewModels;
+
 public class FullConfigTemplateViewModel : MyReactiveObject
 {
     #region Reactive
+
     [Reactive]
     public bool EnableFullConfigTemplate4Ray { get; set; }
 
@@ -35,6 +36,7 @@ public class FullConfigTemplateViewModel : MyReactiveObject
     public string ProxyDetour4Singbox { get; set; }
 
     public ReactiveCommand<Unit, Unit> SaveCmd { get; }
+
     #endregion Reactive
 
     public FullConfigTemplateViewModel(Func<EViewAction, object?, Task<bool>>? updateView)
@@ -48,6 +50,7 @@ public class FullConfigTemplateViewModel : MyReactiveObject
 
         _ = Init();
     }
+
     private async Task Init()
     {
         var item = await AppHandler.Instance.GetFullConfigTemplateItem(ECoreType.Xray);
diff --git a/v2rayN/v2rayN/Views/OptionSettingWindow.xaml b/v2rayN/v2rayN/Views/OptionSettingWindow.xaml
index bdd47f1c..e3e38992 100644
--- a/v2rayN/v2rayN/Views/OptionSettingWindow.xaml
+++ b/v2rayN/v2rayN/Views/OptionSettingWindow.xaml
@@ -1246,4 +1246,3 @@
         </TabControl>
     </DockPanel>
 </base:WindowBase>
-