Something leads to wrong condition expression evaluation.

17 Jul '12, 05:27 PM
Forum Forum Starter - Level 2

Inside content module i have 2 variables which are assigned to id attributes of 2 hierarchical units. I want to hide the grid cell if both units are empty using visibility condition. If i write just one line "return false" in condition expression it works fine(obviously) but even this code always evaluates to true:

def expr = share != null || details != null
println expr
return false

How can that be? The value of expr printed to system output is 'false' but putting <c:out value="${webratio:evaluateCondition('miu41dcexpr291d', null, pageContext)}"/> in jsp returns true. And yes, i've put 'return false' here but even with this it evaluates to true. So the cell is always shown.

x 0
Answer Answer at this question and get points!
No Forum Badges


in order to obtain the desired result, you can try the following solution:

1) Add two Selector Units inside the page containing the Hierarchical Index Units. Each Selector Unit is related to the Entity specified on a Hierarchical Index Unit (e.g. the Entity of the Selector Unit 1 is the same as the Entity specified on the Hierarchical Index Unit 1 at Level 0, and so on).

2) Add two variables: the first one refers to the "Data Size" parameter of the Selector Unit 1, while the second one refers to the "Data Size" parameter of the Selector Unit 2.

3) Add a Condition Expression working on the previous variables ("var1" and "var2" are the name of the variables):

def expr = var1 != 0 || var2 != 0
return expr

4) Select the Grid Cell containing the units and in the Condition tab, set the "Cell Visibility Cond." property to the Condition Expression.

In this way, if both Hierarchical Index Units are empty, the Grid Cell will be hidden.

x 0
Answer at this question and get points!

Related questions

Acceder a diferentes site views/ Acces to diferents site views Add to Bag link in ACME any webratio book ? Asking For a Book Attribute comparison in a selector unit Clarification about the NoOperation unit Codigo QR Como hacer un menu en webratio? Conditional Expression "greater than 0" on null fields Connect more query unit Content module page variable won't assign. coupled mandatory fields Create Unit with Date (Year only) Custom Attributes Condition Database Database List is not showing up in App Emulator Data is always created doubled Data Management: Updating Data - Attachments - Updating Data Sample Project Final Description: Unknown tag 'wr:LinkResource' Dudas sobre modelado(Data Flow,Forms y Operation Create) Empty record mistakenly saved en_US codify problem Export XML external link.= Filter information in a Simple List Format currency forward/backward navigation and bookmark in ajax web app "Generation Error" with Generate and Run Generation options problem get the attachment files of an email Get Unit problem Get Year from Date Help for connect public and private site views How can i create pagemenu or landmarkmenu with multiple levels. How does WebRatio represent these IFML elements? / ¿Cómo representa WebRatio estos elementos IFML? How i can reuse modules in multiple projects? How to define the sequence of execution units on a page? How to display the attributes of a related entity. How to filter imported attributes? How to include Selector Unit result in Mail Unit Body? How to pass vars to a alternative page How to process IFML Model (build with Eclipse editor) with ATL How to show a page based on a boolean? How to speed up the "last" link using PowerIndexUnit for lots of records How to store data related to an entity in relationships in a project web Insert data into database Insert master page to many hybrid modules Integrating a BPM model into an existent WebML model JSON I/O Unit e informazioni derivate KO Links in Selector Unit Landmark in hybrid module Link localization Links from Index unit with condition Link Visibility Condition Power Index Unit Mail multipla maintain the record order in a sortable list Math Unit to update attributes of an entity? [MOBILE] How I extract information from JSON client side? Modifica Entità tramite file xml Multi Entry Unit: How to forward only checked rows? multi-lingual product description Non riesco a fare funzionare Xml out unit Parametrizzazione Selector Unit Problem Example create Unit (no company in employee table) Problem in adding diagrams in IFML Editor (Eclipse) Problem with query unit! Problem with Scroller Unit query a database Question about Site Views Rename passing attributes Replace ID by its value in another table Search by Selector component does not work Select between parameters Selector unit doesn't return any value in hybrid module Sending mails is not working Sending mails with gmail is not working Setting the Default link for a Switch unit show/hide fields on button click (registration page) [solved] all links transparent, why ? sumar atributos de una tabla filtrado por Role Condition Sum entity's values Transportation Link issue Unique Fields using relationship role conditional with null usuarios y grupos utilizzo componenti database Visibility Condition on Multiple Links From Index Unit WebRation - Create Navigation diagram