api_datasource.nextrow / api_datasource.previousrow error

Hi,

I noticed with testing nextrow/previousrow procedures in a grid i noticed that both procedures give an error when you reach the last or first record. Error is record 0 does not exist, or record xxx does not exist. Is it possible to check if the record number exists and if it does not exist, just do nothing? I think this would be much more user friendly.

asked 24 Feb '12, 05:37

asdr ♦
99●4●9
accept rate: 8%

One Answer:

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Yes, it is possible. nextRow and previousRow APIs raises e_invalidRowNumber exception if the current row is already the last row or the first row. Below is the sample of how to handle exceptions:
begin api_datasource.nextRow('ds1'); exception when api_exception.e_invalidRowNumber then null; end;

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answered 24 Feb '12, 05:42

Ugur Kocak ♦
561●6
accept rate: 23%

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nextrow ×2
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