System.Configuration.ConfigurationLockCollection.Remove C# (CSharp) Method

        public void Remove(string name) {
            if (!internalDictionary.Contains(name)) {
                throw new ConfigurationErrorsException(SR.GetString(SR.Config_base_collection_entry_not_found, name));
            }
            // in a locked list you cannot remove items that were locked in the parent
            // in an exception list this is legal because it makes the list more restrictive

            if (_bExceptionList == false &&
                ((ConfigurationValueFlags)internalDictionary[name] & ConfigurationValueFlags.Inherited) != 0) {
                if (((ConfigurationValueFlags)internalDictionary[name] & ConfigurationValueFlags.Modified) != 0) {
                    // allow the local one to be "removed" so it won't write out but throw if they try and remove
                    // one that is only inherited
                    ConfigurationValueFlags flags = (ConfigurationValueFlags)internalDictionary[name];
                    flags &= ~ConfigurationValueFlags.Modified;
                    internalDictionary[name] = flags;
                    _bModified = true;
                    return;
                }
                else {
                    throw new ConfigurationErrorsException(SR.GetString(SR.Config_base_attribute_locked, name));
                }
            }

            internalDictionary.Remove(name);
            internalArraylist.Remove(name);
            _bModified = true;
        }