private void OperationSelectChanged(object sender, SelectionChangedEventArgs e)
{
this.list_parameter.Items.Clear();
Operation op = XMLUtil.GetOperationByName(this.opList, (String)this.list_operation.SelectedItem);
if (op != null)
{
foreach (String parameter in op.Parameters)
{
this.list_parameter.Items.Add(parameter);
}
}
}