Inline Edit and Save not working with apex:selectlist

I have a set of select options in a dropdown which the user selects and based on the option selected different sets of pageblocktables are rendered. I want them to be able to inline edit and save each of these tables. When I give these tables inline edit/save functionality without using the select list, it works perfectly. However, when I use inline editing with selectlist; after click on the save button, the page reloads but then does not show any tables and data does not get saved. I am guessing there is problem with the doSave() function in my code.

VF code:

<apex:page controller="OppsController"> <apex:form > <apex:panelGrid columns="2"> <apex:selectList value="{!SectionNames}" required="True" size="1" multiselect="false"> <apex:selectOptions value="{!SectionItems}" /> <apex:actionSupport event="onchange" action="{!updateData}"/> </apex:selectList> </apex:panelGrid> <apex:outputPanel > <apex:outputPanel id="section1" rendered="{!section1}" > <apex:pageBlock > <apex:commandButton value="Save" action="{!doSaveUS}" /> <apex:pageBlockTable value="{!OppContentUS}" var="item" style="text-align:left;" > <apex:inlineEditSupport showOnEdit="SaveActiveState" /> <apex:facet name="header">US New Business This Quarter</apex:facet> <apex:column > <apex:facet name="header">Owner.Name</apex:facet> {!item['Owner.Name']} </apex:column> <apex:column > <apex:facet name="header">Account Name</apex:facet> {!item['Account.Name']} </apex:column> <apex:column > <apex:facet name="header">Opportunity Name</apex:facet> {!item['Name']} </apex:column> <apex:column > <apex:facet name="header">Stage</apex:facet> {!item['StageName']} </apex:column> <apex:column > <apex:facet name="header">Total Contract Value</apex:facet> {!item['Total_Contract_Value__c']} </apex:column> <apex:column > <apex:facet name="header">Tier</apex:facet> {!item['Opp_Tier_Group__c']} </apex:column> <apex:column > <apex:facet name="header">Notes</apex:facet> {!item['Opp_Owner_Notes__c']} </apex:column> </apex:pageBlockTable> </apex:pageBlock> </apex:outputPanel> </apex:outputPanel> <apex:outputPanel > <apex:outputPanel id="section2" rendered="{!section2}" > <apex:pageBlock > <apex:commandButton value="Save" action="{!doSaveUK}" /> <apex:pageBlockTable value="{!OppContentUK}" var="item" style="text-align:left;" > <apex:inlineEditSupport showOnEdit="SaveActiveState" /> <apex:facet name="header">UK New Business This Quarter</apex:facet> <apex:column > <apex:facet name="header">Owner.Name</apex:facet> {!item['Owner.Name']} </apex:column> <apex:column > <apex:facet name="header">Account Name</apex:facet> {!item['Account.Name']} </apex:column> <apex:column > <apex:facet name="header">Opportunity Name</apex:facet> {!item['Name']} </apex:column> <apex:column > <apex:facet name="header">Stage Name</apex:facet> <apex:outputfield value="{!item.StageName}" ></apex:outputField> </apex:column> <apex:column > <apex:facet name="header">Total Contract Value</apex:facet> {!item['Total_Contract_Value__c']} </apex:column> <apex:column > <apex:facet name="header">Tier</apex:facet> {!item['Opp_Tier_Group__c']} </apex:column> <apex:column > <apex:facet name="header">Notes</apex:facet> {!item['Opp_Owner_Notes__c']} </apex:column> </apex:pageBlockTable> </apex:pageBlock> </apex:outputPanel> </apex:outputPanel> 

Controller:

public with Sharing class OppsController { public String SectionNames {get;set;} public Boolean section1 {get; set;} public Boolean section2 {get; set;} public List<SelectOption> getSectionItems(){ section1 = false; section2 = false; List<SelectOption> SectionNames = new List<SelectOption>(); SectionNames.add(new SelectOption('','-- Select --')); SectionNames.add(new SelectOption('USA New Business','USA New Business')); SectionNames.add(new SelectOption('UK New Business','UK New Business')); return SectionNames; } public Pagereference updateData() { if(SectionNames == 'USA New Business') { section1 = true; } else if(SectionNames == 'UK New Business') { section2 = true; } return null; } List<Opportunity> oppsUK = new List<Opportunity>(); List<Opportunity> oppsUS = new List<Opportunity>(); public OppsController() { oppsUK = [SELECT ID, Account.ID, Account.Name, Name, Owner.Name, CloseDate, StageName, Opp_Tier_Group__c, Opp_Owner_Notes__c, Total_Contract_Value__c FROM Opportunity WHERE CloseDate = THIS_QUARTER and Sales_Team__c = 'EMEA' AND Type = 'New Business' ]; oppsUS = [SELECT ID, Account.ID, Account.Name, Name, Owner.Name, CloseDate, StageName, Opp_Tier_Group__c, Opp_Owner_Notes__c, Total_Contract_Value__c FROM Opportunity WHERE CloseDate = THIS_QUARTER and Sales_Team__c = 'US' AND Type = 'New Business' ]; } public List<Opportunity> getOppContentUK() { return this.oppsUK; } public PageReference doSaveUK() { system.debug(oppsUK); update oppsUK; return ApexPages.CurrentPage(); } public List<Opportunity> getOppContentUS() { return this.oppsUS; } public PageReference doSaveUS() { system.debug(oppsUS); update oppsUS; return ApexPages.CurrentPage(); } }