public void ReplaceItem(object chunk)
{
ListViewItem item = SelectedItems[0];
_packet.ReplaceChunk(item.Index, chunk);
item.SubItems[0].Text = chunk.GetType().Name
.Replace("Int32", "Integer");
byte[] data = HMessage.Encode(chunk);
item.SubItems[1].Text = chunk.ToString();
item.SubItems[2].Text = HMessage.ToString(data);
item.ToolTipText = string.Format(CHUNK_TIP,
item.SubItems[0].Text, item.SubItems[1].Text, data.Length, item.SubItems[2].Text);
}
