private void thisMouseMove(object sender, MouseEventArgs e)
        {
            CheckFocusTch(sender, e.Location);  //取当前聚焦的

            if (ReadOnly ||
                (schState != eSchState.common && schState != eSchState.focused) ||
                e.Button != MouseButtons.Left ||
                schState == eSchState.inDrop)
            {
                return;
            }

            if (Math.Abs(e.X - DownXY.X) < 5 && Math.Abs(e.Y - DownXY.Y) < 5)
            {
                return;
            }

            EnLsnAct Act   = null;
            VcTime   sTime = new VcTime();

            if (sender == TaskGrid && TaskGridBind.Count > 0)
            {
                DataGridView.HitTestInfo hi = TaskGrid.HitTest(e.X, e.Y);
                TaskGridBind.Position = hi.RowIndex;

                TaskGrid.Refresh(); //有用的,让TaskGrid更新当前选中行为被选中状态
                Act = TaskGridBind.Current as EnLsnAct;
            }
            else if (sender is SqdScheduleCell)
            {
                Act = (sender as SqdScheduleCell).Act;
                (sender as SqdScheduleCell).Time.CopyFieldTo(sTime);
            }

            if (Act != null)
            {
                ToInDropState(Act, sTime);

                (sender as Control).DoDragDrop(Act, DragDropEffects.Move);
            }
        }