Hello,

I have a VF page with a custom controller that works great when entering values into the form fields.  However, I also need to allow users the option of removing values they have previously input.  I've worked with SFDC premier support on the code below but I have not been able to figure out how to allow a zero to be entered and replace an existing value.  In the custom controller, there is an expression to validate that the variable in the VF form is not zero because the value apparently defaults to zero.  However, this is also preventing someone from entering zero in order to remove a previous value.  Does anyone have any ideas?

The VF Page:

<apex:page standardController="Population_Assumption__c" tabStyle="Population_Assumption__c" extensions="CustomOppController"
 sidebar="False" Title="Update Population Assumptions" recordSetVar="opps" id="mupop">
    <apex:messages />
    <apex:form id="muform">
    <style type="text/css">
    .bPageBlock.pbBody { background-color:#0000CD; }
    .format { font-style:italic; font-weight:bold; color:#0000CD; }
    .box { background-color:LightSteelBlue; }
    .button { text-align:center; padding-top:4px; }
    </style>

        <apex:pageBlock title="UPDATE POPULATION ASSUMPTIONS" mode="edit" id="mub1">
             <apex:pageBlockSection columns="2">
             <apex:outputLabel for="muselectedlist" styleClass="format" value="Eligible Employee Population: ">
                <apex:inputText styleClass="box" value="{!NewEEVal}" id="muselectedlist">
                    <apex:actionSupport event="onchange" rerender="muselectedlist"/>
                </apex:inputText></apex:outputLabel><BR></BR>

             <apex:outputLabel for="SpousePop" styleClass="format" value="Eligible Spouse Population: ">
                <apex:inputText styleClass="box" value="{!NewSPVal}" id="SpousePop">
                    <apex:actionSupport event="onchange" rerender="muselectedlist"/>
                </apex:inputText></apex:outputLabel><BR></BR>

            <apex:outputLabel for="DepPop" styleClass="format" value="Eligible Dependents Population: ">
                <apex:inputText styleClass="box" value="{!NewDEPVal}" id="DepPop">
                    <apex:actionSupport event="onchange" rerender="muselectedlist"/>
                </apex:inputText></apex:outputLabel><BR></BR>

            <apex:outputLabel for="SeniorPop" styleClass="format" value="Eligible Seniors Population: ">
                <apex:inputText styleClass="box" value="{!NewSENVal}" id="SeniorPop">
                    <apex:actionSupport event="onchange" rerender="muselectedlist"/>
                </apex:inputText></apex:outputLabel><BR></BR>

            <apex:outputLabel for="OtherPop" styleClass="format" value="Eligible Other Population: ">
                <apex:inputText styleClass="box" value="{!NewOTHVal}" id="OtherPop">
                    <apex:actionSupport event="onchange" rerender="muselectedlist"/>
                </apex:inputText></apex:outputLabel><BR></BR><BR></BR><BR></BR>

             </apex:pageBlockSection>
            <apex:pageBlockButtons location="top">
                <apex:commandButton styleClass="button" style="background:DarkSeaGreen" value="Save" action="{!Ab}"/>
                <apex:commandButton styleClass="button" style="background:DarkSeaGreen" value="Cancel" action="{!cancel}"/>
            </apex:pageBlockButtons>

         <apex:pageBlockTable value="{!opps}" var="p">
            <apex:column value="{!p.Name}"/>
            <apex:column value="{!p.EE_Eligible_Population__c}"/>
            <apex:column value="{!p.Spouse_Eligible_Population__c}"/>
            <apex:column value="{!p.Dependents_Eligible_Population__c}"/>
            <apex:column value="{!p.Seniors_Eligible_Population__c}"/>
            <apex:column value="{!p.Other_Eligible_Population__c}"/>

        </apex:pageBlockTable>
        </apex:pageBlock>
    </apex:form>
</apex:page>

The Custom Controller:

public class CustomOppController{

public CustomOppController(ApexPages.StandardSetController controller) {
oppid=System.currentPageReference().getParameters().get('id');
    }

public List<Population_Assumption__c> PopulationInfo{get;set;}

public String oppid{get; set;}
public Integer NewEEVal{get;set;}
Public Integer NewSPVal{get;set;}
Public Integer NewDEPVal{get;set;}
Public Integer NewSENVal{get;set;}
Public Integer NewOTHVal{get;set;}

public CustomOppController()
{
}

public PageReference Ab()
{       
system.debug('####################');   
PopulationInfo=new List<Population_Assumption__c>();
   for(Population_Assumption__c pop :[Select EE_Eligible_Population__c,Spouse_Eligible_Population__c,Dependents_Eligible_Population__c,
   Seniors_Eligible_Population__c,Other_Eligible_Population__c
   FROM Population_Assumption__c
   WHERE Opportunity__c=:oppid])
    {
     system.debug('po####p:'+pop);
     system.debug('@@@@@@@@ NewEEVal :'+NewEEVal );
     system.debug('######## NewSPVal:'+NewSPVal);
     system.debug('$$$$$$$$ NewDEPVal:'+NewDEPVal);
     system.debug('%%%%%%%% NewSENVal:'+NewSENVal);
     system.debug('^^^^^^^^ NewOTHVal:'+NewOTHVal);
     system.debug('@@@@@@@@ pop.EE_Eligible_Population__c:'+pop.EE_Eligible_Population__c);
     system.debug('######## pop.Spouse_Eligible_Population__c :'+pop.Spouse_Eligible_Population__c );
     system.debug('$$$$$$$$ pop.Dependents_Eligible_Population__c:'+pop.Dependents_Eligible_Population__c);
     system.debug('%%%%%%%% pop.Seniors_Eligible_Population__c:'+pop.Seniors_Eligible_Population__c);
     system.debug('^^^^^^^^ pop.Other_Eligible_Population__c:'+pop.Other_Eligible_Population__c);
    
      IF ( NewEEVal!= null && pop.EE_Eligible_Population__c!= NewEEVal && NewEEVal!=0) {
          pop.EE_Eligible_Population__c = NewEEVal;
      }
      IF ( NewSPVal!= null && pop.Spouse_Eligible_Population__c != NewSPVal && NewSPVal!=0) {
          pop.Spouse_Eligible_Population__c = NewSPVal;
      }
      IF (NewDEPVal != null && pop.Dependents_Eligible_Population__c != NewDEPVal && NewDEPVal!=0 ) {
          pop.Dependents_Eligible_Population__c =  NewDEPVal ;
      }
      IF (NewSENVal != null && pop.Seniors_Eligible_Population__c != NewSENVal && NewSENVal!=0) {
          pop.Seniors_Eligible_Population__c =  NewSENVal ;
      }
      IF (NewOTHVal != null && pop.Other_Eligible_Population__c != NewOTHVal && NewOTHVal!=0) {
          pop.Other_Eligible_Population__c = NewOTHVal;
      }   
    PopulationInfo.add(pop);
    }

Try {
    update PopulationInfo;
    } catch(DMLException e) {
    ApexPages.Message myMsg = new ApexPages.Message(ApexPages.Severity.ERROR,'Please click Cancel');
    ApexPages.addMessage(myMsg);
}  

PageReference Newpage=new PageReference('/'+oppid);
return NewPage;
}
}