How to display helptext for a field on a VF Page

[Krishna Prabhakar]

Hi ,

 

We have a visual force page for adding the products for an opportunity where 

<apex:page standardController="OpportunityLineItem" extensions="ProductExtensionController" id="pg" tabStyle="Opportunity" showHeader="true">
<style type="text/css">
.longText { width:100px; }
</style>

    <apex:form id="frm">
    <!--Displays Error messages.--->
        <apex:pagemessages />
        <apex:pageBlock id="pgBlock0">
            <!--Display page to add products to oppurtunity from Cloud User Pricebook.--->
            <apex:pageBlockSection id="pgBlock1">
                <apex:pageBlockTable value="{!CloudProducts}" var="pro1">
                    <apex:column >
                        <apex:facet name="header">Product Name</apex:facet>
                        <apex:outputText styleClass="longText" value="{!pro1.prodWrapper .Name}">&nbsp;&nbsp;</apex:outputText>
                    </apex:column>            
                    <apex:column >  
                        <apex:facet name="header">Quantity/Term</apex:facet>

                            <apex:inputField value="{!pro1.oli.Quantity}" required="true"/>&nbsp;&nbsp;
                        
                    </apex:column>    
                    <apex:column >  
                        <apex:facet name="header">No.of Users</apex:facet>
                           <apex:inputField value="{!pro1.oli.No_of_Users__c}" required="true"/>&nbsp;&nbsp;
                       </apex:column>
                    <apex:column >  
                        <apex:facet name="header">Price per user/month</apex:facet>
                        


<apex:inputField value="{!pro1.oli.Price_per_user_month__c}" required="true"/>&nbsp;&nbsp;
       
                    </apex:column>  
                    <apex:column >  
                        <apex:facet name="header">Revenue Type</apex:facet>
                        <apex:inputField value="{!pro1.oli.Revenue_Type__c}" required="true"/>&nbsp;&nbsp;
                    </apex:column>                    
<apex:column >
                        <apex:facet name="header">Product Type</apex:facet>
                        <apex:inputField value="{!pro1.oli.Product_Type__c}" required="true" />&nbsp;&nbsp;   
                                    
</apex:column>           
                </apex:pageBlockTable>
            </apex:pageBlockSection>
            <!--Display navigation buttons--->
            <apex:pageBlockButtons >
                <apex:commandButton value="Save" action="{!save}"/>
                <apex:commandButton value="Save&More" action="{!saveMore}"/>
                <apex:commandButton value="Cancel" action="{!Cancel}"/>
            </apex:pageBlockButtons>
        </apex:pageBlock>
    </apex:form>
</apex:page>

 we want to display the helptext for the field "Product_Type__c" in the page, can someone help me how can we do this. I see some solutions saying to display as below:

<apex:pageBlockSectionItem helpText="{!$ObjectType.OpportunityLineItem.Fields.Product_Type__c.inlineHelpText}"/>

but not able to use this anywhere wherever i use i get the blank message whith no content.

 

Regards,

Prabhakar.