Use Custom Settings in Apex Class on a Visualforce Page #inSalesforce

Use Custom Settings in Apex Class on a Visualforce Page

public with sharing class CustomSettingsSampleController {
  public String selectedCodes {get;set;}
  public List<selectOption> Codes {
    get {
      List<selectOption> options = new List<selectOption>();
      for (Country__c coun : Country__c.getAll().values())
        options.add(new SelectOption(coun.Code__c,coun.Name+' - '+coun.Code__c));
      return options;
    }
    set;
  }
}

<apex:page controller="CustomSettingsSampleController">
  <apex:sectionHeader title="Custom Settings" subtitle="Country Code List"/>
  <apex:form >
    <apex:pageBlock >
          <apex:selectList value="{!selectedCodes}" size="1">
              <apex:selectOptions value="{!Codes}"/>
          </apex:selectList>
    </apex:pageBlock>
  </apex:form>
</apex:page>