How to use apex:selectOptions and prepare picklist values in Visualforce Page.

How to user <apex:selectOptions > in Visualforce Page.

Hi,

In this post i am using <apex:selectOptions >,<apex:selectRadio>,<apex:selectList> tags. Here from controller i am preparing pick-list values and set in visualforce page.

Controller:

public class SelectOptionController {

public List<SelectOption> countrieLst {get;set;}

public List<SelectOption> hobbiesLst {get;set;}

public List<SelectOption> genderLst {get;set;}


public String selectedCountry{get;set;}

public String selectedHobby {get;set;}

public String selectedGender {get;set;}

public String selectedValues {get;set;}


public SelectOptionController(){

countrieLst = new List<SelectOption>();

hobbiesLst = new List<SelectOption>();

genderLst = new List<SelectOption>();


countrieLst.add(new SelectOption('','--None--'));

countrieLst.add(new SelectOption('India','India'));

countrieLst.add(new SelectOption('China','China'));

countrieLst.add(new SelectOption('US','US'));


/* preparing picklist values in VF page.

hobbiesLst.add(new SelectOption('','--None--'));

hobbiesLst.add(new SelectOption('Swimming','Swimming'));

hobbiesLst.add(new SelectOption('Reading','Reading'));

hobbiesLst.add(new SelectOption('Cricket','Cricket'));

*/


genderLst.add(new SelectOption('Male','Male'));

genderLst.add(new SelectOption('Female','Female'));

}


public pageReference show(){

selectedValues = 'Selected country:'+selectedCountry +'-->Selected Hobbies:'+selectedHobby+' Gender: -->'+selectedGender;

return null;

}


}

Visualforce page:

<apex:page controller="SelectOptionController">

<apex:form >

<apex:commandbutton value="Show Values" action="{!show}"/>


<apex:pageBlock >

<apex:outputLabel > Countries : </apex:outputLabel>

<apex:selectList size="1" value="{!selectedCountry}">

<apex:selectOptions value="{!countrieLst }"/>

</apex:selectList> <br/>


<apex:outputLabel > Gender : </apex:outputLabel>

<apex:selectRadio value="{!selectedGender}">

<apex:selectOptions value="{!genderLst}"/>

</apex:selectRadio>



<apex:outputLabel > Hobbies :</apex:outputLabel>

<apex:selectList size="1" value="{!selectedHobby}">

<apex:selectOption itemLabel="--None--" itemvalue=""></apex:selectOption>

<apex:selectOption itemLabel="Swimming" itemvalue="Swimming"></apex:selectOption>

<apex:selectOption itemLabel="Reading" itemvalue="Reading"></apex:selectOption>

<apex:selectOption itemLabel="Cricket" itemvalue="Cricket"></apex:selectOption>

</apex:selectList>

</apex:pageBlock>



<apex:pageBlock title="selected values">

<apex:outputText value="{!selectedValues}" style="color:red"/>

</apex:pageBlock>

</apex:form>


</apex:page>

Test Class:


@isTest

Public class SelectOptionController_Test {

static testmethod void testSelectOptionController(){

//Test converage for the myPage visualforce page

PageReference pageref = Page.SelectOptionVFExample;

Test.setCurrentPageReference(pageref);


// create an instance of the controller

SelectOptionController sop= new SelectOptionController ();

sop.selectedCountry ='India';

sop.selectedHobby='Swimming';

sop.selectedGender ='Male';

sop.show();


system.assertEquals('India',sop.selectedCountry);

system.assertEquals('Swimming',sop.selectedHobby);

system.assertEquals('Male',sop.selectedGender);

}

}