Helper method: CultureHelper.IsCompatibleCulture

framework/src/Volo.Abp.Core/Volo/Abp/Localization/CultureHelper.cs

@@ -1,5 +1,6 @@
 using System;
 using System.Globalization;
+using System.Linq;
 using JetBrains.Annotations;
 
 namespace Volo.Abp.Localization;
@@ -59,4 +60,31 @@ public static class CultureHelper
     {
         return new CultureInfo(cultureName).Parent.Name;
     }
+    
+    public static bool IsCompatibleCulture(
+        string sourceCultureName,
+        string targetCultureName)
+    {
+        if (sourceCultureName == targetCultureName)
+        {
+            return true;
+        }
+
+        if (sourceCultureName.Contains("-"))
+        {
+            return false;
+        }
+
+        if (!targetCultureName.Contains("-"))
+        {
+            return false;
+        }
+
+        if (sourceCultureName == GetBaseCultureName(targetCultureName))
+        {
+            return true;
+        }
+
+        return false;
+    }
 }

framework/test/Volo.Abp.Core.Tests/Volo/Abp/Localization/CultureHelper_Tests.cs

@@ -0,0 +1,20 @@
+using Shouldly;
+using Xunit;
+
+namespace Volo.Abp.Localization;
+
+public class CultureHelper_Tests
+{
+    [Fact]
+    public void IsCompatibleCulture()
+    {
+        CultureHelper.IsCompatibleCulture("tr", "tr").ShouldBeTrue();
+        CultureHelper.IsCompatibleCulture("tr", "tr-TR").ShouldBeTrue();
+
+        CultureHelper.IsCompatibleCulture("en", "tr").ShouldBeFalse();
+        CultureHelper.IsCompatibleCulture("en", "tr-TR").ShouldBeFalse();
+        
+        CultureHelper.IsCompatibleCulture("en-US", "en").ShouldBeFalse();
+        CultureHelper.IsCompatibleCulture("en-US", "en-GB").ShouldBeFalse();
+    }
+}