private void del_tag_Click(object sender, EventArgs e)
{
ArrayList arrayList = new ArrayList();
arrayList.AddRange(listBox_tag.SelectedItems);
foreach (var item in arrayList)
{
sortSet.Remove(item.ToString());
}
sortSet_to_listBox_tag();
}
/// <summary>
/// delete a node(a PIN） from tree
/// </summary>
/// <param name="t">PIN</param>
/// <returns>Operation is sucessful,return true otherwise false</returns>
public bool Delete(int t)
{
bool rtn = true;
try
{
RBTree.Remove(t);
}
catch (Exception ex)
{
rtn = false;
}
finally
{
}
return(rtn);
}