C#: Safely set the CheckBox.Checked property of a control across threads.

        /// <summary>

        ///     Safely set the <see cref="CheckBox.Checked" /> of the control across threads.

        /// </summary>

        /// <param name="control"></param>

        /// <param name="value"></param>

        public static void Checked( [CanBeNull] this CheckBox control, Boolean value ) {

            if ( null == control ) {

                return;

            }

            if ( control.InvokeRequired ) {

                control.BeginInvoke( new Action( () => {

                    control.Checked = value;

                    control.Refresh();

                } ) );

            }

            else {

                control.Checked = value;

                control.Refresh();

            }

        }

C# : Safely get the Checked() of a Control across threads

        public static Boolean Checked( [CanBeNull] this CheckBox control ) {

            if ( null == control ) {

                return false;

            }

            return control.InvokeRequired ? ( Boolean )control.Invoke( new Func<Boolean>( () => control.Checked ) ) : control.Checked;

        }