System.Configuration.ConfigurationValues.IsModified C# (CSharp) Method

        internal bool IsModified(string key) {
            ConfigurationValue configurationValue = (ConfigurationValue)BaseGet(key);
            if (configurationValue != null) {
                return ((configurationValue.ValueFlags & ConfigurationValueFlags.Modified) != 0);
            }
            else {
                return false;
            }
        }