Visualforce page to search for an Accounts by entering Account Name and Press Enter Key.

We can use the "keyCode==13" with actionfuction to call the apex method on Enter Key event.

Page:

<apex:page controller="SearchByPressingEnterKeyDemoController" >

    <apex:form >

        <apex:pageBlock >

        <apex:actionFunction action="{!search}" name="actionFunction" /> 

        

            <apex:pageBlockSection >

            <apex:panelGrid columns="2"> 

            <apex:outputText value="Enter Account Name:" />

                <apex:inputText value="{!strKey}" onkeydown="if(event.keyCode==13){this.blur();actionFunction();}" />

             </apex:panelGrid>   

            </apex:pageBlockSection>

            <apex:pageBlockButtons >

                <apex:commandButton action="{!cancel}" value="cancel" />                

                <apex:commandButton action="{!search}" value="Search" />                

            

            </apex:pageBlockButtons>

            

            <apex:pageBlockSection columns="1" >

                <apex:pageBlockTable value="{!lstAccount }" var="acc">

                    <apex:column value="{!acc.name}"/>

                    

                </apex:pageBlockTable>

            </apex:pageBlockSection>

            

        </apex:pageBlock>

    </apex:form>

</apex:page>

Controller:

public class SearchByPressingEnterKeyDemoController {

    public string strKey {get;set;}

    public List<Account> lstAccount {get;set;}

    

    public SearchByPressingEnterKeyDemoController(){

        lstAccount = new List<Account>();

    }

    public pageReference cancel(){

        return new pageReference('/001/o');

    }

    

    public void search(){

        if( strKey != null && strKey !=''  ){

            String wildcard = '%'+strKey+'%';

            lstAccount = [select id,name from account where name like :wildcard  ] ;

        }

    }

}