How to add a checkbox next to each row of a table in Visualforce?

Hi,

I would like to know how to add a checkbox next to each row of a table in Visualforce?

Here is my Visualforce page:

<apex:page standardController="ProductEntity__c" recordSetVar=" listOfProductNotes " extensions="QRecords" >
     <apex:form >
     <apex:pageBlock title="Product Notes">
         <apex:pageBlockTable value="{!listOfProductNotes}" var="s">
               <apex:column value="{!s.ProductNotes__r.Name}"/>
         </apex:pageBlockTable>
     </apex:pageBlock>
     </apex:form>
</apex:page>

Any help is greatly appreciated!

Thanks,
Shirley Maglio

May 30, 2014
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Ramu_SFDC
Follow the guidelines explained in the below article

https://developer.salesforce.com/page/Wrapper_Class

May 30, 2014
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Shirley Maglio
Ramu, Thank you for the link. Shirley

May 30, 2014
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Ashwin Khedekar
/**
* Controller for the VF page :- CheckboxDemoPage
* It handles the processing of multiple opportunities selected using checkboxes on the VF page and updates the
* Area__c custom field of these opportunities. It also uses pagination to handle the case of more than 1000
* records cannot be shown at once in <apex:pageBlockTable> tag in the VF page. The wrapper class cOpportunity
* will display the checkboxes due to its boolean field :- selected
* Each wrapper class record will enclose one opportunity record along with its checkbox.
*/
global class CheckboxDemoCtlr
{
public Id oppID {get;set;}
private List<Opportunity> oppList;

// To hold the current records pointed by StandardSetController of Opportunity
public List<Opportunity> oppRecords{get;set;}

// List of wrapper class records. Each wrapper class record will enclose 1 opportunity record along with its checkbox
public List<cOpportunity> cOpportunityList{get;set;}

public ApexPages.StandardSetController setCon{get;set;}

public Integer recordCount {get;set;} // total queried records count
public Integer currentPageNumber {get;set;} // current page number
public Integer intPageSize;
public Integer highestPageNumber {get;set;} // highest page number = 5 if 5 pages are there due to pagination, "Next" button clicking

// Constructor
public CheckboxDemoCtlr()
{
intPageSize = 4; // 4 records are to be shown on each page after pagination
recordCount = 0;
currentPageNumber = 0;
highestPageNumber = 0;
oppID = ApexPages.currentPage().getParameters().get('Id');

oppList = [Select Id, Name, Area__c from Opportunity order by Name limit 50000];
recordCount = oppList.size();
highestPageNumber = calculateHighestPageNumber(recordCount);
if(recordCount > 0)
{
currentPageNumber = 1;
oppRecords = new List<Opportunity>();
setCon = new ApexPages.StandardSetController(oppList); // get the StandardSetController for Opportunity

setCon.setPageSize(4);
oppRecords = (List<Opportunity>)setCon.getRecords(); // get the records

// Create new list of wrapper class records
cOpportunityList = new List<cOpportunity>();

for(Opportunity oppObj : oppRecords)
{
cOpportunityList.add(new cOpportunity(oppObj));
}
}
}

public pageReference processSelected()
{
List<Opportunity> selectedOpp = new List<Opportunity>();
Integer counterCurrentPageNumber = 1;
counterCurrentPageNumber = currentPageNumber;

for(cOpportunity cOpp : cOpportunityList)
{
if(cOpp.selected == true) // this checkbox is checked, so process this opportunity
{
selectedOpp.add(cOpp.opp);
}
}

if(selectedOpp.size() > 0)
{
for(Opportunity oppObj : selectedOpp)
{
oppObj.Area__c = 'this opp got processed';

// Display_current_page_number__c is a field of type Text
oppObj.Display_current_page_number__c = String.valueOf(currentPageNumber);

// Display_highest_page_number__c is a field of type Text
oppObj.Display_highest_page_number__c = String.valueOf(highestPageNumber);
}
update selectedOpp;

// For avoiding error :- Modified rows exist in the records collection :-
// Query records again to display them in the pageBlockTable
oppList = [Select Id, Name, Area__c from Opportunity order by Name limit 50000];
recordCount = oppList.size();
highestPageNumber = calculateHighestPageNumber(recordCount);

oppRecords = new List<Opportunity>();
setCon = new ApexPages.StandardSetController(oppList);

setCon.setPageSize(4);
oppRecords = (List<Opportunity>)setCon.getRecords();
cOpportunityList = new List<cOpportunity>();

for(Opportunity oppObj : oppRecords)
{
cOpportunityList.add(new cOpportunity(oppObj));
}

// Start counting from page 1 again
currentPageNumber = 1;

// Got to navigate till counterCurrentPageNumber to show same page again, it could be the 2nd or 3rd page,
// on which "Update Area" was clicked after selecting opportunities using checkboxes.
// Keep calling :- moveNext();
while(currentPageNumber < counterCurrentPageNumber)
{
moveNext();
}

// Show how many opportunities updated count on VF page
if(selectedOpp.size() > 1)
{
ApexPages.addMessage(new ApexPages.Message(ApexPages.Severity.INFO,'Updated ' + selectedOpp.size() + ' opportunities'));
}
else
{
ApexPages.addMessage(new ApexPages.Message(ApexPages.Severity.INFO,'Updated ' + selectedOpp.size() + ' opportunity'));
}
}
return null;
}

public void moveNext()
{
if(setCon.getHasNext())
{
oppRecords = new List<Opportunity>();
setCon.next();

// Keep track of current page number
if(currentPageNumber < highestPageNumber)
{
currentPageNumber = currentPageNumber + 1;
}

oppRecords = (List<Opportunity>)setCon.getRecords();

// Create the wrapper class (cOpportunity) records to be shown on UI
cOpportunityList = new List<cOpportunity>();
for(Opportunity oppObj : oppRecords)
{
cOpportunityList.add(new cOpportunity(oppObj));
}
}
}

public void movePrevious()
{
if(setCon.getHasPrevious())
{
oppRecords = new List<Opportunity>();
setCon.previous();

if(currentPageNumber > 1)
{
currentPageNumber = currentPageNumber - 1;
}

oppRecords = (List<Opportunity>)setCon.getRecords();
cOpportunityList = new List<cOpportunity>();
for(Opportunity oppObj : oppRecords)
{
cOpportunityList.add(new cOpportunity(oppObj));
}
}
}

public void moveFirst()
{
oppRecords = new List<Opportunity>();
setCon.first();
currentPageNumber = 1;
oppRecords = (List<Opportunity>)setCon.getRecords();
cOpportunityList = new List<cOpportunity>();
for(Opportunity oppObj : oppRecords)
{
cOpportunityList.add(new cOpportunity(oppObj));
}
}

public void moveLast()
{
oppRecords = new List<Opportunity>();
setCon.last();
currentPageNumber = highestPageNumber;
oppRecords = (List<Opportunity>)setCon.getRecords();
cOpportunityList = new List<cOpportunity>();
for(Opportunity oppObj : oppRecords)
{
cOpportunityList.add(new cOpportunity(oppObj));
}
}

// This wrapper class will show the checkbox for each opportunity through its "selected" boolean field
public class cOpportunity
{
public Opportunity opp {get;set;}
public Boolean selected {get;set;}

public cOpportunity(Opportunity o)
{
opp = o;
selected = false;
}
}

// Get the highest page number. Highest page number is 5 if 5 pages exist due to pagination (Next button clicking).
public Integer calculateHighestPageNumber(Integer recordCount)
{
if(math.mod(recordCount,intPageSize) != 0) // check for remainder is zero
{
Integer modResult = recordCount/intPageSize; // get the quotient
return (modResult + 1);
}
else
{
return recordCount/intPageSize; // return quotient if record count is exactly
// divisible by page size of records to be shown on each page (pagination)
}
}
}



<apex:page controller="CheckboxDemoCtlr" sidebar="false" showHeader="false" cache="false">
<apex:form >

<apex:pageMessages id="ResultMessages"/>

<apex:outputPanel id="EnclosingPanel">
<apex:outputPanel id="PanelOpp" rendered="{!cOpportunityList.size>0}">
<apex:pageBlock >
<apex:pageBlockButtons >
<apex:commandButton value="Update Area" action="{!processSelected}" reRender="EnclosingPanel,ResultMessages"/>
</apex:pageBlockButtons>


<apex:pageBlockTable value="{!cOpportunityList}" var="cOpp">


<apex:column >
<apex:inputCheckbox value="{!cOpp.selected}"/>
</apex:column>

<apex:column title="Opportunity ID" value="{!cOpp.opp.Id}"/>
<apex:column title="Opportunity Name" value="{!cOpp.opp.Name}"/>
<apex:column title="Area" value="{!cOpp.opp.Area__c}"/>
</apex:pageBlockTable>

<apex:pageBlockSection>
<apex:pageBlockSectionItem>
<apex:outputpanel>
<apex:commandButton action="{!moveFirst}" value="First" disabled="{!!setCon.hasPrevious}"/>
<apex:commandButton action="{!movePrevious}" value="Previous" disabled="{!!setCon.hasPrevious}"/>
<apex:commandButton action="{!moveNext}" value="Next" disabled="{!!setCon.hasNext}"/>
<apex:commandButton action="{!moveLast}" value="Last" disabled="{!!setCon.hasNext}"/>

<br/>
Highest page number:
<apex:outputText value="{!highestPageNumber}"/>

<br/>
Current page number:
<apex:outputText value="{!currentPageNumber}"/>

<br/>
Total queried records: <apex:outputText value="{!recordCount}"/>

</apex:outputpanel>
</apex:pageBlockSectionItem>
</apex:pageBlockSection>

</apex:pageBlock>
</apex:outputPanel>
<apex:outputPanel id="PanelOpp2" rendered="{!cOpportunityList.size=0}">
<apex:outputText value="No opportunities found" style="color:red;font-weight:bold"/>
</apex:outputPanel>
</apex:outputPanel>
</apex:form>
</apex:page>

November 10, 2018
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