Syntax error from adding IF function to Visualforce error

Question

I've isolated a syntax error down to one simple addition of an inline IF function.

If I comment out Block B and uncomment A, it compiles fine and renders as expected. If all I do is comment out Block A and uncomment Block B, Mavensmate won't let me compile and throws this error:

Result: [COMPILE FAILED]: (RevenueSchedule) Syntax error.  Missing ')'  (Line: 1, Column: -1)

Block A:

<apex:inputText id="revAmt" 
rendered="{!IF(isLocked == false,'true','false')}" 
value="{!sched.revenue}" 
styleClass="amountField" 
onchange="updateTotals('{!revSched.lineItem.id}');" />

Block B:

<apex:inputText id="revAmt" 
rendered="{!IF(isLocked == false,'true','false')}" 
value="{!IF(revSched.scheduleType == 'L',revSched.totalRevenue,sched.revenue)}" 
styleClass="amountField" 
onchange="updateTotals('{!revSched.lineItem.id}');" />

As you can see, they are identical besides the addition of the IF function to block B. That's the only reason I haven't definitively concluded that the syntax error lies elsewhere on the page. Can anyone see anything definitely wrong syntactically with anything in Block B, or any reason Block A would compile but not B?

Answer 1

This works with an output field, but not an input field. The value parameter cannot conditionally bind to two different fields.

<apex:page showHeader="true" sidebar="true" standardController="Account">
    <apex:form>
        <apex:inputText value="{!IF(FIND(Account.Name, 'a') >= 0, Account.Name, Account.AccountNumber)}"/>
    </apex:form>
</apex:page>

This does not compile, but change inputText to outputText and it will work.

To make this work, you will need to move that logic into your controller.

Set up a conditional getter and a conditional setter to set/get the value of either sched.revenue or revSched.totalRevenue depending on the logic you want.