void BtnUp_Click(object sender, EventArgs e)
{
string symbol = lbxInstruments.SelectedItem.ToString();
int index = lbxInstruments.SelectedIndex;
if (index > 0)
{
lbxInstruments.Items.RemoveAt(index);
lbxInstruments.Items.Insert(index - 1, symbol);
lbxInstruments.SelectedIndex = index - 1;
bNeedReset = true;
}
return;
}