isstring_return_field_string_type_or_not_.htm
| Navigation: Language Reference > 13 - Built-in Functions >====== ISSTRING (return field string type or not) ====== |    |
ISSTRING( field )
| ISSTRING | Returns true if the field is a GROUP, STRING, CSTRING, or PSTRING data type. |
| field | The label of a field. |
The ISSTRING statement returns true if the field is a GROUP, STRING, CSTRING, or PSTRING data type.
| Return Data Type: | SIGNED |
Example:
MyGroup GROUP
F1 LONG !Field number 1
F2 SHORT !Field number 2
F3 STRING(30) !Field number 3
InGroup GROUP !Field number 3
F1 LONG !Field number 4
F2 SHORT !Field number 5
F3 STRING(30) !Field number 6
END
END
Flag LONG
CODE
Flag = ISSTRING(MyGroup.F1) !returns FALSE
Flag = ISSTRING(MyGroup.F3) !returns TRUE
See Also:
isstring_return_field_string_type_or_not_.htm.txt · Last modified: 2021/04/15 15:57 by 127.0.0.1