private void buttonReload_Click(object sender, EventArgs e)
{
_nodes = _js.GetNodesAndJobs();
this.listBoxNodes.Items.Clear();
this.listBoxInfoJobs.Items.Clear();
_countNode = 0;
foreach (JobNodeInfo node in _nodes)
{
_countNode++;
this.listBoxNodes.Items.Add(_countNode.ToString() + ".) " + node.mac);
}
labelLastReloadTime.Text = DateTime.Now.ToLongTimeString();
}