private IPropertyProvider GetRequiredPropertyProvider(Type type) { IPropertyProvider propertyProvider = _dataContext.MetadataContext.PropertyProviders[type]; if (propertyProvider != null) { return(propertyProvider); } if (_dataContext.MetadataContext.PropertyProviders.DefaultValue == null) { throw ExceptionBuilder.NoPropertyProviderRegisteredAndDefaultProviderIsMissing(type); } return(_dataContext.MetadataContext.PropertyProviders.DefaultValue); }