A>        public DbDateTimePicker()
A>        {
A>            this.ShowCheckBox = true;
A>        }

A>        public new DateTime? Value
A>        {
A>            get
A>            {
A>                if (this.Checked == false) {
A>                    return null;
A>                }
                
A>                return base.Value;
A>            }

A>            set
A>            {
A>                if (value == null) {
A>                    this.Checked = false;
A>                }
A>                else {
A>                    this.Checked = true;
A>                    base.Value = value.Value;
A>                }
A>            }
A>        }
A>