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hide form items based on econdition

jmzags

Is it possible to delete a form item if a certain condition is met?
I'd like to execute a listener when a task kicks off that would evaluate whether
the said item received input in the previous task. If not, I would like to have it hidden/deleted from the current task
so that the placeholder no longer appears on the form for this input item

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Comments

martin_grofcik

I am not sure, but can't you set form property readable flag by expression?

jmzags

The readable property is a pull down selection of True or False
I tried entering an expression, ${ccb_pmo} into the field.but it will not save.

Could someone help me with the required syntax to use in a java based listener
to be executed when this form is called that would ultimately set this field's isReadtable property to its desired setting ?

jmzags

any suggestions?

martin_grofcik

Java based listener can be found in the doc:
http://www.activiti.org/userguide/#executionListeners

Usually I use scripts to check something quickly.

<br><activiti:taskListener event="complete" class="org.activiti.engine.impl.bpmn.listener.ScriptTaskListener" ><br>&nbsp; <activiti:field name="script"><br>&nbsp;&nbsp;&nbsp; <activiti:string><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; def bar = "BAR";&nbsp; // local variable<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; foo = "FOO"; // pushes variable to execution context<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; task.setOwner("kermit"); // test access to task instance<br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; bar // implicit return value<br>&nbsp;&nbsp;&nbsp; </activiti:string><br>&nbsp; </activiti:field><br>&nbsp; <activiti:field name="language" stringValue="groovy" /><br>&nbsp; <activiti:field name="resultVariable" stringValue="myVar" /><br><activiti:taskListener><br>

jmzags

Thanks for the reply.
I am already using java task listeners across my project, so I don't have an issue with writing/implementing, however I am particularly interested in knowing if there is a way to code the readable attribute of one of the
form fields to 'false' - as the designer does not allow for an expression which would have been my preferred method.
Any auggestions are appreciated.

iceman20

Hi!

I am curious if this issue has been addressed, and hopefully solved as I am in need of a way to do the same thing.

Thank you!