Field help (ACLFRM)
When the control is of the Expression type, a logic expression is defined here that must be true in order that the control is considered as carried out. The current value to be controlled is defined by the VALEUR variable. In this way, miscellaneous expressions can be inserted with the aid of the formula editor. For example :
Formula | Explanation |
dayn(VALEUR)<>3 | The date must not be a Wednesday |
VALEUR>"ABC" & VALEUR<"EFG" | Range between two character strings |
mod(VALEUR,3)=0 | The number must be a multiple of 3 |