Difference between revisions of "FIELDINFO()"
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Revision as of 12:21, 1 February 2013
Contents
Purpose
Function to return a string containing comma-separated information about a specified field
Syntax
FIELDINFO(<expN1> [, <expN2>])
See Also
ADESC(), AFIELDS(), ASTORE(), ASTRING(), DBF(), FIELD(), FIELDNAME(), FILTER(), FLDCOUNT(), FLDLIST(), INDEXKEY(), LABEL(), NDX(), RTOS()
Description
The FIELDINFO() function is used to return a string containing comma-separated information about a specified field <expN1> in the currently selected table or the workarea/cursor numbered <expN2>. Fields are numbered from 1 to FLDCOUNT() according to their position in the table structure.
If <expN1> exceeds the number of fields in the table, or there is no currently selected table or no table open in workarea <expN2>, then FIELDINFO() returns a null string.
Otherwise, the information string is structured as follows:
| # | Value |
|---|---|
| 1 | Field name |
| 2 | Field type |
| 3 | Field width |
| 4 | Field decimals |
| 5 | Field description |
| 6 | Field default value |
| 7 | Field picture value |
| 8 | Field choices value |
| 9 | Field validation expression |
| 10 | Field validation error text |
| 11 | Field help/tooltip text |
| 12 | Field mandatory ("1" if True) |
| 13 | Field autoinc ("1" if True) |
Example
open database southwind use example astore(a_info,fieldinfo(1,1),",") display memory
