User exit u21ad retrieves all values of an attribute from an item in a file, but does not advance the MultiValue counter. The following line of the Proc specifies the file information, and a code number.
u21ad file.name item.name attribute.ref code.number
| file.name | Name of the file. If the file name is prefixed with an asterisk, the dictionary portion of the file is accessed. | |
| item.name | Item name. | |
| attribute.ref | Attribute name (or number). | |
| code.number | a | Outputs to the alternative output buffer. |
| p | Outputs to the primary input buffer. | |
| s | Outputs to the current output buffer. | |
| t | Outputs to the terminal. | |
| v | Verifies that the file exists. | |
| va | Verifies that the attribute exists. | |