/**
* <summary>
* Returns the progress of the downloads of the measures from the data logger,
* on a scale from 0 to 100.
* <para>
* When the object is instantiated by <c>get_dataSet</c>,
* the progress is zero. Each time <c>loadMore()</c> is invoked, the progress
* is updated, to reach the value 100 only once all measures have been loaded.
* </para>
* <para>
* </para>
* </summary>
* <returns>
* an integer in the range 0 to 100 (percentage of completion).
* </returns>
*/
public virtual int get_progress()
{
return(_objref.get_progress());
}