History

Time	Change
2011-10-22 16:06:23+00:00	Associated with ::value
2011-10-23 03:13:37+00:00	Associated with ::control
2011-10-23 03:13:37+00:00	Associated with control
2017-03-18 10:06:43+00:00	Associated with dirty value flag
2017-06-29 08:08:35+00:00	Associated with 生値
2017-06-29 08:08:35+00:00	Associated with raw value