Conditional styles
A provisional style is a group of conditions defining the presentation styles applied on the screen field value.
This function is used to define the conditional styles applied to a code that identifies them, a group of conditions, and the corresponding style codes.
The allocation of a conditional style to a field is made by a dedicated function, screen personalization.
It should be noted that the styles allocated to the title fields are defined in a static fashion in the dictionary; it is therefore not possible to dynamically modify them and they use fixed styles and not conditional styles.
Prerequisite
Refer to documentation Implementation
Screen management
Entry screen
In the style setup screen, the identifier code, the conditional style, a definition grid containing use logical conditions and the corresponding style.
Where an existing style is modified, a message is displayed, demanding if the screens using this conditional style should be revalidated. Indeed, any style modification is dynamically taken into account during a revalidation, any use of a dynamic style in a screen provokes the line generation of the codes in the screen source code and presumes its revalidation in order to be effective.
Block number 1
| Code (field COD) |
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This code identifies the current record in a unique way. |
| field DES |
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Title associated with the previous code. |
| Condition (field CND) |
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This logical condition defined as a calculate expression must carry the information that should be on line at the time of using the conditional style. Amongst the on line elements, the value of the current field is identified by the variable zc. The last line of the grid cannot contain a condition (it is therefore a line used by default if no other condition is applicable). |
| Style (field STY) |
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The style code located on the current line is applied if the condition located on the same line is verified (and if it is the first condition verified in the line order). |