Page History
| Panel | ||
|---|---|---|
|
TRUE
This is the boolean value TRUE.
...
UNKNOWNUse |
...
| bgColor | white |
|---|
FALSE
This is the boolean value FALSE.
...
| bgColor | white |
|---|
UNKNOWN
...
the '?' (question mark), representing UNKNOWN, to check if an expression or an attribute has a value. Example Suppose a model with an entity Person and attributes Person.name and Person.age. In runtime, a user fills out a form and enters his name, but forgets to fill out his age. As a result:
|
...
|
...
|
...
| Panel | ||
|---|---|---|
| ||
TRUEThis is the boolean value TRUE. |
| Panel | ||
|---|---|---|
| ||
FALSEThis is the boolean value FALSE. |
...
Overview
Content Tools