NuGet.Settings.SetValue C# (CSharp) Method

        public void SetValue(string section, string key, string value)
        {
            if (String.IsNullOrEmpty(section))
            {
                throw new ArgumentException(CommonResources.Argument_Cannot_Be_Null_Or_Empty, "section");
            }
            var sectionElement = GetOrCreateSection(_config.Root, section);
            SetValueInternal(sectionElement, key, value);
            Save();
        }

        public void SetValue(string section, string key, string value)
        {
            // machine wide settings cannot be changed.
            if (IsMachineWideSettings)
            {
                if (_next == null)
                {
                    throw new InvalidOperationException(NuGetResources.Error_NoWritableConfig);
                }

                _next.SetValue(section, key, value);
                return;
            }

            if (String.IsNullOrEmpty(section))
            {
                throw new ArgumentException(CommonResources.Argument_Cannot_Be_Null_Or_Empty, "section");
            }
            var sectionElement = GetOrCreateSection(_config.Root, section);
            SetValueInternal(sectionElement, key, value);
            Save();
        }