# Microsoft.AspNetCore.Components.Forms.Mapping

``` diff
 namespace Microsoft.AspNetCore.Components.Forms.Mapping {
-    public class FormMappingError
+    public sealed class FormMappingError
-    public class FormValueMappingContext {
+    public sealed class FormValueMappingContext {
-        public FormValueMappingContext(string acceptMappingScopeName, string? acceptFormName, Type valueType, string parameterName);
     }
 }
```

