【Salesforce】Visualforceの標準リストコントローラサンプル

<apex:page standardController="Contact" recordSetVar="contacts">
    <apex:form>
        <apex:pageBlock title="Contacts List" id="contacts_list">
            Filter:
            <apex:selectList value="{! filterId }" size="1">
                <apex:selectOptions value="{! listViewOptions }" />
                <apex:actionSupport event="onchange" reRender="contacts_list" />
            </apex:selectList>
            <!-- Contacts List -->
            <apex:pageBlockTable value="{! contacts }" var="ct">
                <apex:column value="{! ct.FirstName }" />
                <apex:column value="{! ct.LastName }" />
                <apex:column value="{! ct.Email }" />
                <apex:column value="{! ct.Account.Name }" />
            </apex:pageBlockTable>
            <!-- Pagination -->
            <table style="width: 100%">
                <tr>
                    <td>
                        Page:
                        <apex:outputText value=" {!PageNumber} of {! CEILING(ResultSize / PageSize) }" />
                    </td>
                    <td align="center">
                        <!-- Previous page -->
                        <!-- active -->
                        <apex:commandLink action="{! Previous }" value="« Previous" rendered="{! HasPrevious }" />
                        <!-- inactive (no earlier pages) -->
                        <apex:outputText style="color: #ccc;" value="« Previous" rendered="{! NOT(HasPrevious) }" /> &nbsp;&nbsp;
                        <!-- Next page -->
                        <!-- active -->
                        <apex:commandLink action="{! Next }" value="Next »" rendered="{! HasNext }" />
                        <!-- inactive (no more pages) -->
                        <apex:outputText style="color: #ccc;" value="Next »" rendered="{! NOT(HasNext) }" />
                    </td>
                    <td align="right">
                        Records per page:
                        <apex:selectList value="{! PageSize }" size="1">
                            <apex:selectOption itemValue="5" itemLabel="5" />
                            <apex:selectOption itemValue="20" itemLabel="20" />
                            <apex:actionSupport event="onchange" reRender="contacts_list" />
                        </apex:selectList>
                    </td>
                </tr>
            </table>
        </apex:pageBlock>
    </apex:form>
</apex:page>