System.Windows.Controls.InteractionHelper.OnIsReadOnlyChanged C# (CSharp) Method

        public void OnIsReadOnlyChanged(bool value)
        {
            IsReadOnly = value;
            if(!value)
            {
                IsPressed = false;
                IsMouseOver = false;
                IsFocused = false;
            }

            UpdateVisualState(true);
        }

        /// <summary>
        ///     IsReadOnlyProperty property changed handler.
        /// </summary>
        /// <param name="oldValue">Old value.</param>
        /// <param name="newValue">New value.</param>
        protected virtual void OnIsReadOnlyChanged(bool oldValue, bool newValue)
        {
            if (!_settingIsReadOnly)
            {
                _settingIsReadOnly = true;
                IsReadOnly         = oldValue;

                throw new InvalidOperationException(string.Format(CultureInfo.CurrentUICulture,
                                                                  Properties.Resources.InvalidAttemptToChangeReadOnlyProperty, "IsReadOnly"));
            }
            _interactionHelper.OnIsReadOnlyChanged(newValue);
        }