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When I add an apex:inputField for a master-detail relationship it does not allow you to choose a parent via the lookup icon - it only shows the name of a parent if I append a record ID in the URL. If no record ID is specified, it only shows the name of the field, but no lookup icon.

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Code:

<apex:page standardController="Scholarship_Award__c">
    <h1>2020-2021 Academic Year</h1>
    <apex:form >
    <!-- Hi -->
    <apex:pageBlock title="Add Scholarship Awards">
        <apex:pageBlockSection columns="2">
            <apex:inputField value="{!Scholarship_Award__c.Name}"/>
            <apex:inputField value="{!Scholarship_Award__c.Year__c}"/>
            <apex:inputField value="{!Scholarship_Award__c.Recipient__c}"/> 
        </apex:pageBlockSection>
        <apex:pageBlockButtons >
            <apex:commandButton action="{!save}" value="Save"/>
        </apex:pageBlockButtons>
    </apex:pageBlock>
    </apex:form>
</apex:page>
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6
  • I think you would need to use a custom controller to support entering detail records to a variable parent
    – cropredy
    Commented Sep 17, 2020 at 23:52
  • Thank you. How can I do this?
    – patriciajlim
    Commented Sep 17, 2020 at 23:55
  • Is there a reason you can't pass in an ID for the parent? Detail records for M-D relationships can't be created in the standard SFDC UI without starting with a parent
    – cropredy
    Commented Sep 18, 2020 at 0:01
  • Yes. I am developing a custom VF page for our external partners who are non-SF users. They will be inputting data of which we don't have so they will choose from the lookup which parent they would like to associate their new record with.
    – patriciajlim
    Commented Sep 18, 2020 at 0:04
  • 1
    I don't have time to try/prove this but a) write a controllerExtension whose constructor creates a in-memory placeholder parent object using an Id of keyPrefix000000000000000and a detail record (in memory) that points at the in-memory parent. b) then implement a controller extension save() that verifies that a real parent was chosen.
    – cropredy
    Commented Sep 18, 2020 at 0:08

1 Answer 1

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You need to use actual lookup field value="{!Scholarship_Award__c}" instead of value="{!Scholarship_Award__c.Name}"

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