| Overload | Description |
|---|---|
| Add(PerformanceCounter) | Add an existing performance counter object to our collection. |
| Add(String,String) | Add a performance counter object to our collection. If it doesn't exist, it will be created. |
| Add(String,String,String) | Add a performance counter object to our collection. If it doesn't exist, it will be created. |
| Add(String,String,PerfCounterInstanceAlias) | Add a performance counter object to our collection. If it doesn't exist, it will be created. |
| Add(PerfCounterMetric) | Add an existing performance counter metric item to this group |