C# ConfigurationSource.Max方法代码示例

        public virtual bool Annotation(
            [NotNull] string annotation, [CanBeNull] object value, ConfigurationSource configurationSource)
        {
            var existingValue = Metadata[annotation];
            if (existingValue != null)
            {
                ConfigurationSource existingConfigurationSource;
                if (!_annotationSources.Value.TryGetValue(annotation, out existingConfigurationSource))
                {
                    existingConfigurationSource = ConfigurationSource.Explicit;
                }

                if ((value == null || existingValue != value)
                    && !configurationSource.Overrides(existingConfigurationSource))
                {
                    return false;
                }

                configurationSource = configurationSource.Max(existingConfigurationSource);
            }

            if (value != null)
            {
                _annotationSources.Value[annotation] = configurationSource;
                Metadata[annotation] = value;
            }
            else
            {
                _annotationSources.Value.Remove(annotation);
                Metadata.RemoveAnnotation(new Annotation(annotation, "_"));
            }

            return true;
        }

        private bool Annotation(
            string annotation, object value, ConfigurationSource configurationSource, bool canOverrideSameSource)
        {
            var existingValue = Metadata[annotation];
            if (existingValue != null)
            {
                ConfigurationSource existingConfigurationSource;
                if (!_annotationSources.Value.TryGetValue(annotation, out existingConfigurationSource))
                {
                    existingConfigurationSource = ConfigurationSource.Explicit;
                }

                if ((value == null || !existingValue.Equals(value))
                    && (!configurationSource.Overrides(existingConfigurationSource)
                    || configurationSource == existingConfigurationSource && !canOverrideSameSource))
                {
                    return false;
                }

                configurationSource = configurationSource.Max(existingConfigurationSource);
            }

            if (value != null)
            {
                _annotationSources.Value[annotation] = configurationSource;
                Metadata[annotation] = value;
            }
            else
            {
                _annotationSources.Value.Remove(annotation);
                Metadata.RemoveAnnotation(new Annotation(annotation, "_"));
            }

            return true;
        }

 private void UpdateIsStoreGeneratedAlwaysConfigurationSource(ConfigurationSource configurationSource)
     => _isStoreGeneratedAlwaysConfigurationSource = configurationSource.Max(_isStoreGeneratedAlwaysConfigurationSource);

 private void UpdateIsUniqueConfigurationSource(ConfigurationSource configurationSource)
     => _isUniqueConfigurationSource = configurationSource.Max(_isUniqueConfigurationSource);

 private void UpdateRequiresValueGeneratorConfigurationSource(ConfigurationSource configurationSource)
     => _requiresValueGeneratorConfigurationSource = configurationSource.Max(_requiresValueGeneratorConfigurationSource);

 private void UpdateIsConcurrencyTokenConfigurationSource(ConfigurationSource configurationSource)
     => _isConcurrencyTokenConfigurationSource = configurationSource.Max(_isConcurrencyTokenConfigurationSource);

 private void UpdateValueGeneratedConfigurationSource(ConfigurationSource configurationSource)
     => _valueGeneratedConfigurationSource = configurationSource.Max(_valueGeneratedConfigurationSource);

 private void UpdateIsReadOnlyAfterSaveConfigurationSource(ConfigurationSource configurationSource)
     => _isReadOnlyAfterSaveConfigurationSource = configurationSource.Max(_isReadOnlyAfterSaveConfigurationSource);

        /// <summary>
        ///     This API supports the Entity Framework Core infrastructure and is not intended to be used 
        ///     directly from your code. This API may change or be removed in future releases.
        /// </summary>
        public virtual void Ignore([NotNull] string name, ConfigurationSource configurationSource = ConfigurationSource.Explicit)
        {
            Check.NotNull(name, nameof(name));

            ConfigurationSource existingIgnoredConfigurationSource;
            if (_ignoredEntityTypeNames.TryGetValue(name, out existingIgnoredConfigurationSource))
            {
                configurationSource = configurationSource.Max(existingIgnoredConfigurationSource);
            }

            _ignoredEntityTypeNames[name] = configurationSource;
        }

 private void UpdateIsNullableConfigurationSource(ConfigurationSource configurationSource)
     => _isNullableConfigurationSource = configurationSource.Max(_isNullableConfigurationSource);

 private void UpdateDeleteBehaviorConfigurationSource(ConfigurationSource configurationSource)
     => _deleteBehaviorConfigurationSource = configurationSource.Max(_deleteBehaviorConfigurationSource);

 /// <summary>
 ///     This API supports the Entity Framework Core infrastructure and is not intended to be used 
 ///     directly from your code. This API may change or be removed in future releases.
 /// </summary>
 public virtual void UpdateForeignKeyPropertiesConfigurationSource(ConfigurationSource configurationSource)
 {
     _foreignKeyPropertiesConfigurationSource = configurationSource.Max(_foreignKeyPropertiesConfigurationSource);
     foreach (var property in Properties)
     {
         property.UpdateConfigurationSource(configurationSource);
     }
 }

 /// <summary>
 ///     This API supports the Entity Framework Core infrastructure and is not intended to be used 
 ///     directly from your code. This API may change or be removed in future releases.
 /// </summary>
 public virtual void UpdateIsRequiredConfigurationSource(ConfigurationSource configurationSource)
     => _isRequiredConfigurationSource = configurationSource.Max(_isRequiredConfigurationSource);

 /// <summary>
 ///     This API supports the Entity Framework Core infrastructure and is not intended to be used 
 ///     directly from your code. This API may change or be removed in future releases.
 /// </summary>
 public virtual void UpdatePrincipalToDependentConfigurationSource(ConfigurationSource? configurationSource)
     => _principalToDependentConfigurationSource = configurationSource.Max(_principalToDependentConfigurationSource);

 /// <summary>
 ///     This API supports the Entity Framework Core infrastructure and is not intended to be used 
 ///     directly from your code. This API may change or be removed in future releases.
 /// </summary>
 public virtual void UpdateDependentToPrincipalConfigurationSource(ConfigurationSource? configurationSource)
     => _dependentToPrincipalConfigurationSource = configurationSource.Max(_dependentToPrincipalConfigurationSource);