Instead of using two VF pages,why cant you use two outputpanels containing the

two VF pages.You rerender output panel #1 and and output panel#2 according to your wish.

In this method you can use the same Controller.

hi,

If you are using same controller for different pages, then there state should be maintained. Make sure, Page.setRedirect is false on button click.

if still problem persists, please post your code.

Hi Rohit,

Thanks for the reply, but my scenario is bit different.

Please find below the details about code and process flow:

Main VF page:

<script>

function selectCloseDate(){

window.open('/apex/LA_CloseDatePage','','height=300,width=700',replace=false);

}

</script>

<apex:pageBlocktitle="title">

<apex:pageBlockButtons location="top" id="pageBlock_Buttons">

<apex:commandButtonid="accept"value="Accept"action="{!acceptProcess}"reRender="faSpcTable"

onClick="selectCloseDate();"/>

</apex:pageBlockButtons>

<apex:pageBlockTablevalue="{!clientlistDetail}"var="s"width="100%"id="fa_pageBlockTable">

<apex:columnid="col_umn">

<inputname="nx"type="checkbox"value="{!s.selected}"id="checkedone">

<apex:actionSupportevent="onclick"action="{!GetclientlistDetailSelectedId}"rerender="pqr"/>

</input>

</apex:column>

<apex:columnheadervalue="Status"value="{!s.status}"/>

</apex:pageBlockTable>

second VF code:

<apex:page standardController="Employee_Shadow__c" extensions="AL_CwlaFASpecialistListDetailController" sidebar="false" showHeader="false">
<script>
function closeWindow(){
    alert('closing window...');
    window.close();       
}

</script>

<apex:form >
    <apex:pageBlock title="My Content" mode="edit">
            <apex:pageBlockButtons >
                <apex:commandButton action="{!updateOpportunities}" value="Save Records" onclick="return closeWindow();" immediate="true"/>
            </apex:pageBlockButtons>
            <apex:pageBlockSection title="Select close date" columns="2">
                <apex:inputField value="{!Employee_Shadow__c.WKR_BRTH_DT__c}"/>
            </apex:pageBlockSection>
        </apex:pageBlock>
</apex:form>
</apex:page>

Here in above code, i am using same extension controller for both the VFs.

I want to open VF page in new window, on click of button of existing page.

Before clicking the button, i am selecting some checkboxes, so want to retain those checkboxes values as it is when new window is opened.

In new window , i am selecting date value from VF page, and clicking on "Save recs" button.

On clicking this button on new window, i want to save all selected records from previous page(parent page) with the updated value in picklist which i selected in new window.

Please help.