DATATYPE keyword
Applies To
Form components
Property defaults
edt_ (extended data type) variable values
Property: Data type
Description
Specifies the data type in WinStudio, either reflecting the type of data from the IDO or overriding the type from the IDO.
Syntax
DATATYPE( type )
| Part | Description |
| type | Expression that evaluates to a string specifying a type of data, as described in Settings. |
Settings
| Setting | Description |
| CHAR | Character string. |
| DATE | Date and time. |
| CURRENCY | Money. |
| I1 | One-byte integer. |
| I2 | Two-byte integer. |
| I4 | Four-byte integer. |
| R4 | Four-byte floating point. |
| R8 | Eight-byte floating point. |
| DECIMAL | Fixed decimal. |
| BINARY | BLOB (binary large object) data. |
| NUMSORTCHAR | A numeric or alphanumeric string that is padded for the purpose of proper numeric sorting. See the method “ExpandNumSortedChar” for details on how data values are padded. |
Remarks
WinStudio validates component values according to the type of data specified with the DATATYPE keyword. The type is normally equivalent to the type returned by the IDO. In some cases, you may wish to override the IDO type. For example, a character string type can be overridden with the DATE data type so that date or time validation is imposed on component values. You can reduce the precision of numeric values of a component by specifying a data type with lower precision than that of the type returned by the IDO.
Example
The following example is an edt_ variable value.
DATATYPE(CHAR)LENGTH(80)