void LoadFile(ExplorerNode node)
{
TransferItem ud_item = new TransferItem();
//From
ud_item.From.node = node;
//group & UI
GroupData.TotalFileLength += node.Info.Size;
ud_item.SizeString = UnitConventer.ConvertSize(node.Info.Size, 2, UnitConventer.unit_size);
ud_item.status = StatusTransfer.Waiting;
//To
ud_item.To.node = node.MakeNodeTo(this.fromfolder, this.savefolder);
ud_item.DataSource.From = node.GetFullPathString();
ud_item.DataSource.To = ud_item.To.node.GetFullPathString();
ud_item.DataSource.Status = ud_item.status.ToString();
ud_item.Group = GroupData;
GroupData.items.Add(ud_item);
GroupData.DataSource.Progress = "0/" + GroupData.items.Count.ToString();
RefreshGroupDataToShow(0, 0);
}