System.Configuration.ConfigurationElementCollection.IsLockableElement C# (CSharp) Метод

        internal bool IsLockableElement(string elementName) {
            if (CollectionType == ConfigurationElementCollectionType.AddRemoveClearMap ||
                CollectionType == ConfigurationElementCollectionType.AddRemoveClearMapAlternate) {
                return (elementName == AddElementName ||
                        elementName == RemoveElementName ||
                        elementName == ClearElementName);
            }
            else {
                return (elementName == ElementName) || IsElementName(elementName);
            }
        }

        public void Add(string name)
        {
            if (((this._thisElement.ItemLocked & ConfigurationValueFlags.Locked) != ConfigurationValueFlags.Default) && ((this._thisElement.ItemLocked & ConfigurationValueFlags.Inherited) != ConfigurationValueFlags.Default))
            {
                throw new ConfigurationErrorsException(System.Configuration.SR.GetString("Config_base_attribute_locked", new object[] { name }));
            }
            ConfigurationValueFlags modified = ConfigurationValueFlags.Modified;
            string attribToLockTrim          = name.Trim();
            ConfigurationProperty property   = this._thisElement.Properties[attribToLockTrim];

            if ((property == null) && (attribToLockTrim != "*"))
            {
                ConfigurationElementCollection elements = this._thisElement as ConfigurationElementCollection;
                if ((elements == null) && (this._thisElement.Properties.DefaultCollectionProperty != null))
                {
                    elements = this._thisElement[this._thisElement.Properties.DefaultCollectionProperty] as ConfigurationElementCollection;
                }
                if (((elements == null) || (this._lockType == ConfigurationLockCollectionType.LockedAttributes)) || (this._lockType == ConfigurationLockCollectionType.LockedExceptionList))
                {
                    this._thisElement.ReportInvalidLock(attribToLockTrim, this._lockType, null, null);
                }
                else if (!elements.IsLockableElement(attribToLockTrim))
                {
                    this._thisElement.ReportInvalidLock(attribToLockTrim, this._lockType, null, elements.LockableElements);
                }
            }
            else
            {
                if ((property != null) && property.IsRequired)
                {
                    throw new ConfigurationErrorsException(System.Configuration.SR.GetString("Config_base_required_attribute_lock_attempt", new object[] { property.Name }));
                }
                if (attribToLockTrim != "*")
                {
                    if ((this._lockType == ConfigurationLockCollectionType.LockedElements) || (this._lockType == ConfigurationLockCollectionType.LockedElementsExceptionList))
                    {
                        if (!typeof(ConfigurationElement).IsAssignableFrom(property.Type))
                        {
                            this._thisElement.ReportInvalidLock(attribToLockTrim, this._lockType, null, null);
                        }
                    }
                    else if (typeof(ConfigurationElement).IsAssignableFrom(property.Type))
                    {
                        this._thisElement.ReportInvalidLock(attribToLockTrim, this._lockType, null, null);
                    }
                }
            }
            if (this.internalDictionary.Contains(name))
            {
                modified = ConfigurationValueFlags.Modified | ((ConfigurationValueFlags)this.internalDictionary[name]);
                this.internalDictionary.Remove(name);
                this.internalArraylist.Remove(name);
            }
            this.internalDictionary.Add(name, modified);
            this.internalArraylist.Add(name);
            this._bModified = true;
        }