private void DeleteInstruments()
{
if (this.trvInstruments.SelectedNode == null)
{
return;
}
List <Instrument> list = new List <Instrument>();
if (this.trvInstruments.SelectedNode is GroupNode)
{
foreach (InstrumentNode instrumentNode in this.trvInstruments.SelectedNode.Nodes)
{
list.Add(instrumentNode.Instrument);
}
}
if (this.trvInstruments.SelectedNode is InstrumentNode)
{
list.Add((this.trvInstruments.SelectedNode as InstrumentNode).Instrument);
}
if (MessageBox.Show((IWin32Window)this, "Do you really want to delete selected instrument(s)?", "Delete", MessageBoxButtons.YesNo, MessageBoxIcon.Question) != DialogResult.Yes)
{
return;
}
using (List <Instrument> .Enumerator enumerator = list.GetEnumerator())
{
while (enumerator.MoveNext())
{
InstrumentManager.Remove(enumerator.Current);
}
}
}
public static void Remove(string symbol)
{
var instrument = InstrumentManager.Instruments[symbol];
if (instrument == null)
{
return;
}
InstrumentManager.Remove(instrument);
}