Hi Magu,

Thanks for the reply , see my below code once in this setpagesize is used but  we have pagination also why he used pagination over there, what is the difference between pagination and setpagesize, where we can use pagination and setpagesize , can we use setpagenation in standardcontroller please provide me complete detailes about pagination and setpagesize,
1) what is the relation between pagenation and setpagesize
2) when we will go for the pagenation when we will go the setpagesize

Page:
-------
<apex:page standardController="DataLoadTest__c" recordsetvar="recs" extensions="test">
    <apex:form >
           <apex:pageBlock >
                <apex:pageBlockSection >
                    <apex:pageBlockTable value="{!recs}" var="r">
                        <apex:column headervalue="Name">
                            {!r.Name}
                        </apex:column>
                    </apex:pageBlockTable>
                </apex:pageBlockSection>
                <apex:commandButton value="previous" action="{!previous}"></apex:commandButton>
                <apex:commandButton value="next" action="{!next}"></apex:commandButton>
           </apex:pageBlock>
     </apex:form>
</apex:page>

class:
-------
public with sharing class test {
    public test(ApexPages.StandardsetController Controller){
        Controller.setPageSize(2);
    }
  }
Thanks in advance