How to select all checkbox option in Salesforce visualforce page without using javascript?

Hi Pranav,

I am assuming that you have a list of records and you want to 'select all' using single checkbox to do some sort of operation/action on the selected records. So to create 'check-uncheck all' functionality in your VF page, I think using Javascript would be the best option as JavaScript runs client side, 'check-uncehck' all functionality would be fast as compared to apex. If your requirement is to use apex . Here is a sample code : -

VF page : 

<apex:page controller="checkUncheckAllCntrl" tabStyle="Account">
<apex:form id="theForm">
<apex:pageBlock>
<apex:pageBlockButtons>
<apex:commandButton value="Do Some Action"/>
</apex:pageBlockButtons>
<apex:pageBlockSection title="List of Accounts">
<apex:pageBlockTable value="{!wrapperAccList}" var="acc">
<apex:column>
<apex:facet name="header">
<apex:inputCheckbox id="mainBox" value="{!mainBoxValue}" onChange="CallAction();return false;">
<apex:actionSupport event="onclick" action="{!checkUncheckAll}" reRender="theForm"/>
</apex:inputCheckbox>
</apex:facet>
<apex:inputCheckbox value="{!acc.flag}"/>
</apex:column>
<apex:column value="{!acc.accObj.Name}"/>
</apex:pageBlockTable>
</apex:pageBlockSection>
</apex:pageBlock>
</apex:form>
</apex:page>

Controller :

public class CheckUncheckAllCntrl {
public Boolean mainBoxValue{get;set;}
public List<checkBoxWrapper> wrapperAccList{get;set;}

public CheckUncheckAllCntrl(){
wrapperAccList = new List<checkBoxWrapper>();
for(Account acc :[Select Id,Name,OwnerId from Account limit 10]){
wrapperAccList.add(new CheckBoxWrapper(false,acc));
}
}

public void checkUncheckAll(){
for(CheckBoxWrapper wrapObj : wrapperAccList){
wrapObj.flag = mainBoxValue;
}
}

public class CheckBoxWrapper{
public Boolean flag{get;set;}
public Account accObj{get;set;}

public CheckBoxWrapper(Boolean flagValue,Account accObj){
this.flag = flagValue;
this.accObj = accObj;
}
}
}