protected override void OnDragDrop(DragEventArgs e)
{
base.OnDragDrop(e);
#if __ENABLE_DRAG_GHOST__
IntPtr ownerWindow = Win32ImageList.GetDesktopWindow();
Win32ImageList.ImageList_DragLeave(ownerWindow);
#endif
if (e.Data.GetDataPresent(typeof(ListViewItem[])))
{
ListViewItem[] dragData = (ListViewItem[])e.Data.GetData(typeof(ListViewItem[]));
bool isUpper = false;
Point p = this.PointToClient(new Point(e.X, e.Y));
var item = getListItemByPoint(p, ref isUpper);
int index = getInsertTargetIndex(dragData.First(), item, isUpper);
if (index >= 0)
{
//if (index >= this.Items.Count) index = this.Items.Count - 1;
System.Diagnostics.Debug.Print("OnDragDrop: index{0} �� index{1} �Ɉړ�", dragData.First().Index, index);
// ListItemMoving�C�x���g�������� �� �C�x���g������ŃL�����Z�������
var eventArg = new ListItemMovingEventArgs(dragData, index);
OnListItemMoving(eventArg);
if (eventArg.Cancel == false)
{
BeginUpdate();
foreach (ListViewItem listViewItem in dragData)
this.Items.Remove(listViewItem);
EndUpdate();
// ���X�g���ڂ�ړ�
foreach (ListViewItem listViewItem in dragData)
{
string name = listViewItem.Name; //ListItem#Clone()��Name�v���p�e�B�܂ŕ������Ȃ��̂ŁA��ōĐݒ肷��
ListViewItem insertedItem = this.Items.Insert(index, (ListViewItem)listViewItem.Clone());
insertedItem.Name = name;
insertedItem.Selected = true;
insertedItem.Focused = true;
index++;
}
}
}
m_prevItem = null;
m_prevFlag = false;
Invalidate(false);
}
}
protected virtual void OnListItemMoving(ListItemMovingEventArgs e)
{
if (this.ListItemMoving != null)
this.ListItemMoving((object)this, e);
}