How You Can Customize a Meter Field
At runtime, the value of the meter is initialized to its initial value. To update the current value of the meter as your frame executes, call the UpdateGaugeValue method for the field. For example:
declare
PercentComplete = float;
enddeclare
{
PercentComplete = RowsProcessed / TotalRows;
MyGauge.UpdateGaugeValue(value = PercentComplete);
}