| id | Hierarchy item identifier. |
| sampleIndex | Merged sample index. |
| metadataIndex | Metadata index. |
long Returns value of the metadata as long.
Returns long representation of hierarchy item metadata value.
Throws:
System.ArgumentException if id is invalid.
System.IndexOutOfRangeException if sampleIndex is not in the range from 0 to GetItemMergedSamplesCount.
System.IndexOutOfRangeException if medataIndex is not in the range from 0 to GetItemMergedSamplesMetadataCount.
See Also: GetItemMergedSamplesCount, GetItemMergedSamplesMetadataCount, GetItemMetadataAsLong.