System.Configuration.ConfigurationElement.ParseLockedAttributes C# (CSharp) Метод

        private ConfigurationLockCollection ParseLockedAttributes(ConfigurationValue value, ConfigurationLockCollectionType lockType) {
            // check that only actual properties are in the lock attribute
            ConfigurationLockCollection localLockedAttributesList = new ConfigurationLockCollection(this, lockType);
            string attributeList = (string)(value.Value);

            if (string.IsNullOrEmpty(attributeList)) {
                if (lockType == ConfigurationLockCollectionType.LockedAttributes)
                    throw new ConfigurationErrorsException(SR.GetString(SR.Empty_attribute, LockAttributesKey), value.SourceInfo.FileName, value.SourceInfo.LineNumber);
                if (lockType == ConfigurationLockCollectionType.LockedElements)
                    throw new ConfigurationErrorsException(SR.GetString(SR.Empty_attribute, LockElementsKey), value.SourceInfo.FileName, value.SourceInfo.LineNumber);
                if (lockType == ConfigurationLockCollectionType.LockedExceptionList)
                    throw new ConfigurationErrorsException(SR.GetString(SR.Config_empty_lock_attributes_except, LockAllAttributesExceptKey, LockAttributesKey), value.SourceInfo.FileName, value.SourceInfo.LineNumber);
                if (lockType == ConfigurationLockCollectionType.LockedElementsExceptionList)
                    throw new ConfigurationErrorsException(SR.GetString(SR.Config_empty_lock_element_except, LockAllElementsExceptKey, LockElementsKey), value.SourceInfo.FileName, value.SourceInfo.LineNumber);
            }

            string[] attribsToLock = attributeList.Split(new char[] { ',', ':', ';' });
            foreach (string attribToLock in attribsToLock) {
                string attribToLockTrim = attribToLock.Trim();
                if (!String.IsNullOrEmpty(attribToLockTrim)) {
                    // validate that the locks are good
                    if (!((lockType == ConfigurationLockCollectionType.LockedElements ||
                         lockType == ConfigurationLockCollectionType.LockedAttributes) &&
                         attribToLockTrim == LockAll)) {
                        ConfigurationProperty propToLock = Properties[attribToLockTrim];

                        if (propToLock == null ||                                   // if the prop does not exist 
                            attribToLockTrim == LockAttributesKey ||                // or it is the lockattributes keyword
                            attribToLockTrim == LockAllAttributesExceptKey ||       // or it is the lockattributes keyword
                            attribToLockTrim == LockElementsKey ||                  // or it is the lockelements keyword
                            (lockType != ConfigurationLockCollectionType.LockedElements && lockType != ConfigurationLockCollectionType.LockedElementsExceptionList &&
                                typeof(ConfigurationElement).IsAssignableFrom(propToLock.Type)) ||  // or if not locking elements but the property is a element
                            ((lockType == ConfigurationLockCollectionType.LockedElements || lockType == ConfigurationLockCollectionType.LockedElementsExceptionList) &&
                             !typeof(ConfigurationElement).IsAssignableFrom(propToLock.Type)) // or if locking elements but the property is not an element
                        ) {
                        // check to see if this is a collection and we are locking a collection element

                            ConfigurationElementCollection collection = this as ConfigurationElementCollection;
                            if (collection == null && Properties.DefaultCollectionProperty != null) // this is not a collection but it may contain a default collection
                            {
                                collection = this[Properties.DefaultCollectionProperty] as ConfigurationElementCollection;
                            }
                            if (collection == null ||
                                lockType == ConfigurationLockCollectionType.LockedAttributes || // If the collection type is not element then the lock is bogus
                                lockType == ConfigurationLockCollectionType.LockedExceptionList) {
                                ReportInvalidLock(attribToLockTrim, lockType, value, null);
                            }
                            else if (!collection.IsLockableElement(attribToLockTrim)) {
                                ReportInvalidLock(attribToLockTrim, lockType, value, collection.LockableElements);
                            }
                        }
                        if (propToLock != null && propToLock.IsRequired == true)
                            throw new ConfigurationErrorsException(SR.GetString(SR.Config_base_required_attribute_lock_attempt, propToLock.Name));
                    }


                    // concatenate the new attribute.
                    localLockedAttributesList.Add(attribToLockTrim, ConfigurationValueFlags.Default); // Mark as local
                }
            }
            return localLockedAttributesList;
        }