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I have a Master Object "Job Req", and a detail object "Application"

In a "Job Req" record, i need to put a button in "Applications" related list, that (for now) does something simple, like just open a VF page that displays the Applications that were selected in related list.

I will later expand on that myself. Right now i am having issue passing the selected records to the VF page.

This is what i have done -

Created a List button on Application object, that opens a VF Page

Added that Button to the Applications Related List on Job Req page layouts

Now When i select some records from Application Related List, and click on the button, i expect it to show names of just those applications. But somehow, it shows whole bunch of records. Instead of showing selected records, it shows some set of records that i don't even know

Selecting singel record

Here is the output, which shows some bunch of records, instead of showing just 1 i selected- Output shows some set of records here

Here is my VF page code 

<apex:page standardController="ts2__Application__c" recordSetVar="selectedApplications">
  <apex:pageBlock >
    <apex:pageBlockTable value="{!selectedApplications}" var="a">
        <apex:column value="{!a.name}"/>       
    </apex:pageBlockTable>
  </apex:pageBlock>
</apex:page>

If anyone has any clue how to get selected records working from a related list, please let me know (using Standard set controllers). I don't want to use a javascript button that passes IDs of selected records. I already have that working, but it has limitations on how many IDs can be passed via URL parameter (most browsers crap at url length of 2000 characters).

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You can use controller extension with StandardSetController. The getSelected() method of StandardSetController returns the selected records.

Visualforce

<apex:page standardController="ts2__Application__c" recordSetVar="selectedApplications" extensions="ApplicationExtn">
  <apex:pageBlock >
    <apex:pageBlockTable value="{!selectedApplications}" var="a">
        <apex:column value="{!a.name}"/>       
    </apex:pageBlockTable>
  </apex:pageBlock>
</apex:page>

Controller Extension

public class ApplicationExtn {
    public List<ts2__Application__c> selectedApplications {get;set;}
    private ApexPages.StandardSetController controller;
    private Set<Id> appIds = new Set<Id>();

    public ApplicationExtn(ApexPages.StandardSetController controller){
        this.controller = controller;
        selectedApplications = controller.getSelected();
}

For more information, refer StandardSetController Class

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  • Thanks a lot man. I tried using getselected in a separate method, not in constructor. Then called it on the page in pageBlockTable, and it wasnt working. But your advice worked perfectly
    – user41343
    Commented Jan 31, 2017 at 17:22
  • I also observed a weird limit here. From the related list, i selected over 100 applications, but my VF page only showed 100 applications. I used another implementation, where a javascript button gets IDs of selected applications and pass them as parameter to VF page. Even there i noticed this limit of 100 records. It crops down the number of records to 100. Just FYI to anyone reading this.
    – user41343
    Commented Jan 31, 2017 at 19:15
  • can you try setting setPageSize(200) and do a testing. I think default is 100 records
    – Santanu Boral
    Commented Jan 31, 2017 at 20:02

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