Visualforce Actionsupport examples

<apex:page controller="actionSupport6">

  <apex:form >

      <apex:outputPanel id="test">

          <apex:pageBlock >

              Enter Text1:<apex:inputText value="{!text1}"/>

                            <br/><br/><br/><br/>

            

              Enter Text2:<apex:inputText value="{!text2}">

                                <apex:actionSupport event="onmouseover" action="{!CallMethod}" reRender="test"/>

                          </apex:inputText>

          </apex:pageBlock>

      </apex:outputPanel>

  </apex:form>

</apex:page>

public class actionSupport6

{

    public String text1{get;set;}

    public String text2{get;set;}

    

    public void CallMethod()

    {

       

        text2 = text1;

    } 

}

===============================================================

<apex:page standardController="Contact" extensions="ActionSupport">

    <apex:form>

        <apex:pageBlock>

            <apex:pageBlockSection id="appraiserInfo">

                <apex:inputField value="{!Contact.firstname}"/>

               </apex:pageBlockSection>

                 <apex:inputField label="Company" value="{!contact.AccountId}">

                      <apex:actionSupport action="{!UpdateContactDetails}"  event="onchange" rerender="appraiserInfo" />

                  </apex:inputField>

        </apex:pageBlock>

    </apex:form>

 

</apex:page>

===========================================================

public class ActionSupport {

    public contact conObj;

    public ActionSupport(ApexPages.StandardController controller)

    {

        conObj=(Contact)controller.getRecord();

    }

    public void UpdateContactDetails()

    {

        system.debug('Method is Calling with id===>'+conObj.Accountid);

       

        Account Varacc=[select id,name from Account where id=:conObj.Accountid];

        conObj.firstname=Varacc.name;

    }

}