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ABL Reference
Handle Attributes and Methods Reference : FIRST-DATASET attribute


A handle to the first dynamic ProDataSet object created in the current ABL session.
Data type: HANDLE
Access: Read-only
Applies to: SESSION system handle
After finding the first entry, you can find the remaining entries in the list by using the NEXT-SIBLING attribute for each dynamic ProDataSet object. Use the NEXT-SIBLING attribute to get the next entry in the list of ProDataSet object handles created in the current ABL session.