private void MyListView_DragEnter(object sender, DragEventArgs e)
{
GroupSelectedSataus.GetSnapshoot();
OnItemDragSortStart?.Invoke(sender, null);
GroupSelectedSataus.ReCoverSnapshoot();
SelectedListViewItemCollection draggedItems = (SelectedListViewItemCollection)e.Data.GetData(typeof(SelectedListViewItemCollection));
e.Effect = (draggedItems == null || draggedItems.Count == 0 || draggedItems[0].ListView != this) ? DragDropEffects.None : e.AllowedEffect;
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void MyListView_ItemDrag(object sender, ItemDragEventArgs e)
{
if (this.SelectedItems != null && this.SelectedItems.Count > 0)
{
GroupSelectedSataus.GetSnapshoot();
OnItemDragSortStart?.Invoke(sender, e);
GroupSelectedSataus.ReCoverSnapshoot();
moveItemIndex = this.SelectedItems[0].Index;
this.DoDragDrop(this.SelectedItems, DragDropEffects.Move);
}
}
