[SalesForce] How to get the selected records from the related list

I have custom object and which is a lookup to Quote.

1)I have created a "MassEdit" list button on the related list (Child object).

2) I am unable to retrieve the records (Child records) from the (Parent record) .

For Example :I have parent record say "pt1" and it has 2 child records in the related list say "ch1,ch2".Now when the user clicks on the "MASSEDIT" button on the related list ,it should open the records "ch1.ch2" to edit.After necessary changes the user will save the record.So how can i do this.I shall appreciate your help.
Any suggestion plz.

Followed this Example :
http://www.infallibletechie.com/2014/05/how-to-get-selected-records-from.html

VF CODE :

<apex:page StandardController="Compitetor__c" sidebar="false" recordSetVar="Compitetors"     extensions="CompitetorsEditExt">
 <apex:form >
  <apex:sectionHeader title="Edit for Competitor"/>
  <apex:pageBlock title="Quote Update"  mode="Edit">
   <apex:pageBlockButtons >
    <apex:commandButton action="{!SAVE}" value="SAVE"/>
    <apex:commandButton action="{!CANCEL}" value="CANCEL"/>
   </apex:pageBlockButtons>
    <apex:pageBlockTable value="{!selected}" var="com">
    <apex:column >
    <apex:inputField value="{!com.Name}"/>
    </apex:column>
 <apex:column >
   <apex:inputField value="{!com.Product_Series__c}" />
   </apex:column>
  </apex:pageBlockTable>
  </apex:pageBlock>
 </apex:form>
    </apex:page>

Apex Class :

public  class CompitetorsEditExt {

    public CompitetorsEditExt(ApexPages.StandardSetController controller) {
     controller.setPageSize(10);

    }
}

Best Answer

If you mean that you want to get the selected records in the controller then you can use the methods of the standard controller such as getSelected like this:

public  class CompitetorsEditExt {

    private ApexPages.StandardSetController sc;

    public CompitetorsEditExt(ApexPages.StandardSetController sc) {
        this.sc = sc;
        sc.setPageSize(10);
    }

    private Compitetor__c[] getSelected() {
        return (Compitetor__c[]) sc.getSelected();
    }

    private void someOtherMethod() {
        Compitetor__c[] competitors = getSelected();
        ...
    }
}

Related Solutions

[SalesForce] Can we get the existing records of a related list,by clicking on a ListButton

This question is very similar to the one you already asked here: how to create a custom button for a custom object on a related list

If I don't misunderstand you requirements, you got a lot of things conceptually wrong.

First Competitors are related to quotes and you want to find all competitors for that quote. So you have to bypass the QuoteId as filter criteria - not the CompetitorId.

So your button code could be something like

/apex/CompitetorsForQuote?id={!Quote.Id}

There is also absolutely no need for using Javascript as Button type. You should use URL.

Then you query for a single competitor (using the wrong where) but you should query for a list.

string QuoteId = System.currentPageReference().getParameters().get('Id');
Competitor__c[] comps = [SELECT Id,Name,Product_Series__c,   Part_Number__c,  
    Price_Offered__c , Volume__c,  Date_Price_is_valid__c FROM Compitetor__c 
    WHERE Quote__c = :QuoteId;
];

This is probably not all and my code is untested and may contain errors. But it could help you to think about the structure.

[SalesForce] How to populate related list records in VF page for Editing

Have you looked into the apex:relatedList tag yet? https://www.salesforce.com/us/developer/docs/pages/Content/pages_compref_relatedList.htm

If this is not a solution for you, please share your full VisualForce page. I think you've only copied the last two lines. You'll have a add a where-clause in your query based on the ID that you pass to the class in VisualForce.

Update:

Please replace your Apex code with:

public with sharing class CompetitorEditExt {

    private List<Competitor__c> comp;
    private Id quoteId;

    public CompetitorEditExt(ApexPages.StandardSetController c) {
        c.setPageSize(10);
        this.quoteId = ApexPages.currentPage().getParameters().get('id');
    }

    public List<Competitor__c> getcomp() {
        comp = [Select Id, Name, Part_Number__c, Price_Offered__c, Product_Series__c, Volume__c, Date_Price_is_valid__c from Competitor__c where CustomQuote__c = :this.quoteId];
        return comp;
    }

    public pageReference save() {
        update comp;
        PageReference ret = new PageReference(ApexPages.currentPage().getParameters().get('retURL'));
        return ret.setRedirect(true);
    }

    public PageReference cancel() {
        PageReference ret = new PageReference(ApexPages.currentPage().getParameters().get('retURL'));
        return ret.setRedirect(true);
    }

}

Now we use the Quote's Id to look for the Competitor records that are related to it. I've also made sure your save() and cancel() methods return to the original Quote.

Related Topic

[SalesForce] Visualforce page loaded with items selected from a related list