Action Component

Action Region:

<apex:page controller="ActionExample">

    <apex:form>

                <apex:pageBlock title="PageBlock" id="one">

                <apex:pageBlockSection>

                <apex:actionRegion>

                                <apex:pageBlockSectionItem>

                        <apex:outputLabel value="Enter Name" />

                        <apex:inputText value="{!name}">

             <apex:actionSupport event="onchange" action="{!show}" reRender="one" />

                        </apex:inputText>

                    </apex:pageBlockSectionItem>

                </apex:actionRegion>

                                <apex:pageBlockSectionItem>

                        <apex:outputLabel value="Enter Branch" />

                        <apex:inputText value="{!branch}" />

                    </apex:pageBlockSectionItem>

            </apex:pageBlockSection>

        </apex:pageBlock>

    </apex:form>

</apex:page>

public class ActionExample {

    public String name  {set;get;}

    public String branch {set;get;}

     public void show(){

            

    }

}

ActionPooler:

<apex:page controller="ActionExample">

    <apex:form id="one">  

        <apex:pageBlock id="pb">

                {!result}<br/>

                {!count}

                                <apex:actionPoller  action="{!getData}" interval="10"  reRender="pb"/>

        </apex:pageBlock>   

    </apex:form>

</apex:page>

public class ActionExample {

    public String name  {set;get;}

    public String branch {set;get;}

    public String result {set;get;}

    public Integer count {set;get;}

    public ActionExample(){

        result='Data & Time :'+System.now();

        count=0;

    }

    public void getData(){

        count=count+1;

        result='Data & Time :'+System.now();

    }

}

Insert ,define ,composition:

Firstpage Name : TemplatePage

<apex:page>

    <apex:form>

                <apex:pageBlock title="PageBlock">

            <apex:commandLink action="/apex/ActionRegion" value="Click" />

            <apex:insert  name="header" />

        </apex:pageBlock>

       

    </apex:form>

</apex:page>

Second page:”

<apex:page >

    <apex:composition template=" TemplatePage ">

        <apex:define name="header"><br/>

            <apex:outputLink value="/apex/page1" > Delete</apex:outputLink>

        </apex:define>

    </apex:composition>

    <apex:pageBlock title="PageBlock2" >

                This is block 2

    </apex:pageBlock>

</apex:page>

EnhancedListView:

<apex:page >

    <apex:enhancedList type="Account" rowsPerPage="10" height="600" width="200"/>

</apex:page>

Related List :

<apex:page standardController="Account" >

     <apex:relatedList list="Cases" title=" Cases" />

    <apex:relatedList list="Contacts" title="Contact" />

</apex:page>