public override void ShowPopupForm()
{
if (OwnerEdit.EditValue == null || OwnerEdit.EditValue == DBNull.Value)
{
Calendar.SelectedDate = null;
}
else
{
Calendar.SelectedDate = (DateTime)OwnerEdit.EditValue; //TODO: Select the bottom-right corner; selection changes
}
base.ShowPopupForm();
Calendar.Focus();
}