override public void Open()
{
Guid operationId = s_diagnosticListener.WriteConnectionOpenBefore(this);
PrepareStatisticsForNewConnection();
SqlStatistics statistics = null;
Exception e = null;
try
{
statistics = SqlStatistics.StartTimer(Statistics);
TaskCompletionSource <DbConnectionInternal> completionSource = null;
if (!TryOpen(isAsync: false, completionSource: ref completionSource))
{
throw ADP.InternalError(ADP.InternalErrorCode.SynchronousConnectReturnedPending);
}
}
catch (Exception ex)
{
e = ex;
throw;
}
finally
{
SqlStatistics.StopTimer(statistics);
if (e != null)
{
s_diagnosticListener.WriteConnectionOpenError(operationId, this, e);
}
else
{
s_diagnosticListener.WriteConnectionOpenAfter(operationId, this);
}
}
}