internal IAsyncResult BeginExecute(int timeout, string path, AsyncCallback cb, object state)
{
List_SO stateObj = null;
SetProgress(true);
try
{
CreateDTP();
stateObj = new List_SO(new DTPStreamCommon(Stream.Null, DTPStreamType.ForWriting),
cb,
state);
_linesBuilder.NewLineEvent += new LinesBuilder.NewLineEventHandler(List_OnNewLineEvent);
_items.Clear();
_linesBuilder.Reset();
string cmd = "LIST";
if (null != path)
{
cmd += " " + path;
}
_currentDTP.DataTransfered += new Cmd_RunDTP.DataTransferedEventHandler(List_OnDataTransfered);
try
{
_currentDTP.BeginExecute(timeout,
cmd,
FtpDataType.Ascii,
-1,
stateObj.UserStream,
new AsyncCallback(RunCmd_End),
stateObj);
}
catch (Exception e)
{
_currentDTP.DataTransfered -= new Cmd_RunDTP.DataTransferedEventHandler(List_OnDataTransfered);
throw e;
}
}
catch (Exception e)
{
if (null != _currentDTP)
{
_currentDTP.Dispose();
_currentDTP = null;
}
SetProgress(false);
throw e;
}
return(stateObj);
}
void RunCmd_End(IAsyncResult ar)
{
List_SO stateObj = (List_SO)ar.AsyncState;
try
{
stateObj.UpdateContext();
_currentDTP.EndExecute(ar);
}
catch (Exception e)
{
stateObj.Exception = e;
}
finally
{
_currentDTP.DataTransfered -= new Cmd_RunDTP.DataTransferedEventHandler(List_OnDataTransfered);
_currentDTP.Dispose();
_currentDTP = null;
_linesBuilder.NewLineEvent -= new LinesBuilder.NewLineEventHandler(List_OnNewLineEvent);
stateObj.SetCompleted();
}
}
