Added new methods

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

@@ -11,7 +11,12 @@ namespace Volo.Abp.Localization
         {
             Check.NotNull(culture, nameof(culture));
 
-            return Use(new CultureInfo(culture), uiCulture == null ? null : new CultureInfo(uiCulture));
+            return Use(
+                new CultureInfo(culture),
+                uiCulture == null
+                    ? null
+                    : new CultureInfo(uiCulture)
+            );
         }
 
         public static IDisposable Use([NotNull] CultureInfo culture, CultureInfo uiCulture = null)
@@ -35,5 +40,29 @@ namespace Volo.Abp.Localization
         {
             get { return Thread.CurrentThread.CurrentUICulture.TextInfo.IsRightToLeft; }
         }
+        public static bool IsValidCultureCode(string cultureCode)
+        {
+            if (cultureCode.IsNullOrWhiteSpace())
+            {
+                return false;
+            }
+
+            try
+            {
+                CultureInfo.GetCultureInfo(cultureCode);
+                return true;
+            }
+            catch (CultureNotFoundException)
+            {
+                return false;
+            }
+        }
+
+        public static string GetBaseCultureName(string cultureName)
+        {
+            return cultureName.Contains("-")
+                ? cultureName.Left(cultureName.IndexOf("-", StringComparison.Ordinal))
+                : cultureName;
+        }
     }
-}
+}