ResourceStringExtension: adding additional function to accomodate optional value in x:Bind compiled function

Author: HerrickSpencer

Microsoft.Toolkit.Uwp.UI/Extensions/Markup/ResourceStringExtension.cs

@@ -33,6 +33,18 @@ protected override object ProvideValue()
             return GetValue(this.Name, this.Language);
         }
 
+        /// <summary>
+        /// Gets a string value from resource file associated with a resource key.
+        /// </summary>
+        /// <param name="name">Resource key name.</param>
+        /// <returns>a string value from resource file associated with a resource key.</returns>
+        public static string GetValue(string name)
+        {
+            // This function is needed to accomodate compiled function usage without second paramater,
+            // which doesn't work with optional values.
+            return resourceLoader.GetString(name);
+        }
+
         /// <summary>
         /// Gets a string value from resource file associated with a resource key.
         /// </summary>
@@ -44,7 +56,7 @@ public static string GetValue(string name, string language = "")
         {
             if (string.IsNullOrEmpty(language))
             {
-                return resourceLoader.GetString(name);
+                return GetValue(name);
             }
 
             // Not using ResourceContext.GetForCurrentView nor GetForViewIndependentUse
@@ -53,5 +65,6 @@ public static string GetValue(string name, string language = "")
 
             return resourceMap.GetValue(name, resourceContext).ValueAsString;
         }
+
     }
 }