private void UpdateCheckState()
{
CheckState newCheckState = CheckState.Unchecked;
if (_ribbonCheckBox.KryptonCommand != null)
newCheckState = _ribbonCheckBox.KryptonCommand.CheckState;
else
newCheckState = _ribbonCheckBox.CheckState;
_viewLargeImage.CheckState = newCheckState;
_viewMediumSmallImage.CheckState = newCheckState;
}