How do I override a new related list button to redirect to a VF page (custom controller)?

Question

My new related list button should redirect me to the New VF page for the child object, with certain fields from the Master on this form pre-filled. I can't seem to be able to both prefill the fields belonging to the Master or associate the new Child with the same Master. The VF page has a custom controller.

I tried using the format /apex/pageName?retURL=sameAsStdNewButton&lookupField_lkid={!Master__c.id}&MasterFieldToBePrefilledId1={!Master__c.Field__c}&... but it doesn't seem to work.

It would also be helpful if someone could tell me how to structure the saveURL.

Answer 1

If you are using a custom visualforce page in redirect URL then simply leverage parameters as given below:

New Button URL:

/apex/myVisualforcePage?masterId={!master__c.Id}&retURL=/{!master__c.Id}

Actual link will be:

https://c.eu0.visual.force.com/apex/myVisualforcePage?masterId=a08200000148XpNAAU&retURL=%2F%2Fa08200000148XpN&nooverride=1

Now you can leverage parameter name "masterId" to fill in the Visualforce page input field.

---

If you are trying to redirect to a page which don;t have controller you can do it like:

New Button URL:

https://c.eu0.visual.force.com/apex/myVisualforcePage?{!IdOfMasterCustomField}={!Master__c.Name}&{!IdOfMasterCustomField}_lkid={!Master__c.id}

Actual link will be shown as:

https://c.eu0.visual.force.com/apex/myVisualforcePage?CF00N20000007hitQ=ER-000722&CF00N20000007hitQ_lkid=a0B2000000h3sgc

Answer 2

Hi you have to write a controller class from where you can assign field values to your child obj fields in constructor and then display them on vf page as prepopulated. Try writing in following code design:

/*****controller*****/
public class className {

    ChildObj ch {get; set;}

    public className(ApexPages.StandardController con){
        MasterObj ms = [Select id,field1,feild2... from MasterObj where id = :ApexPages.currentPage().getParameters().get('masterId')];
        ch = new ChildObj();
        ch.field1 = ms.field1;
        ch.field2 = ms.field2;
        ....
    }
}

/*****VF Page*****/
<apex:page standardcontroller="ChildObj" id="mypage" extensions="className">
<apex:form>
    <apex:inputField value="{!ch.field1}"/>
    <apex:inputField value="{!ch.field2}"/>
</apex:form>
</apex:page>

/*****Button (URL)*****/
/apex/VFPageName?masterId='{!MasterObj.Id}'

Hope this may help.