Hi
I have a custom setting defined as Countries__c which has field  CountryCode__c. so I store as

United States Of Ameria    US
Canada                             CA
Congo                               CG

I have custom object C1__c which has a field called  country_region__c.

In browser URL I will append the ID of the C1 object and fetch the values in fields in visual force page

assume in record we have   country_region__c=United States Of Ameria 

I keep debug statement , value comes in C1Country_Region  property but it doesnt show country Name in picklist in visual force page.

public class C1Controller {

     public String C1Country_Region { get; set; }

     public String C1ID{get;set;}

    public C1__c   c1{get;set;}

   private List<SelectOption> countryCodeList = new List<SelectOption>();

   public String selectedCountryCode {get; set;}

   public C1Controller()

    {

        C1ID=ApexPages.currentpage().getparameters().get('id');

                
        if(String.isBlank(C1ID))

        {

                ApexPages.Message myMsg = new ApexPages.Message(ApexPages.Severity.ERROR,'Error: Invalid Id.');

                ApexPages.addMessage(myMsg);

                return;

        }

        else

        {

          try

          {

            fetchC1values();

          }

          catch(System.QueryException ex){
                 
              Apexpages.addMessage(new Apexpages.Message(Apexpages.Severity.ERROR, 'No Record'));

          }

}

public List<SelectOption> getCountryCodes(){

    if(countryCodeList.isEmpty()){

        countryCodeList.add(new SelectOption("None", "--Select--"));

        for(Countries__c country :Countries__c.getAll().values()){

            countryCodeList.add(new SelectOption(country.CountryCode__c, country.Name));

        }

    }

    return countryCodeList;

}

  public void fetchC1values()

    {

         c1 = new C1__c();

          c1=[SELECT id, Country_Region__c

             FROM C1__c
           WHERE Encrypted_ID__c=:C1ID];

         if (c1 != NULL)

         {

             
       if(!string.isBlank(c1.Country_Region__c))

       {

          system.debug('country'+c1.Country_Region__c);

          C1Country_Region =c1.Country_Region__c;

         }
}

 In visual force page

 <apex:selectList value="{!C1Country_Region}" size="1">

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

                                                 
  </apex:selectList>

also if I select UnitedState of america from picklist then the same should be stored in the sobject.
any help will be grealty helpful

thanks
sonali