Hi,
Using Dynamic apex, we can achieve this. On object of type pickilist, call getDescribe(). Then call the getPicklistValues() method. Iterate over result and create a list. Bind it to <apex:selectOptions>.
Code Example:
Let’s say we have a custom object called OfficeLocation__c. This object contains a picklist field Country__c.
The first thing we need to do, within our controller is use the getDescribe() method to obtain information on
the Country__c field:
Schema.DescribeFieldResult fieldResult = OfficeLocation__c.Country__c.getDEscribe();
We know that Country__c is a picklist, so we want to retrieve the picklist values:
List<Schema.PicklistEntry> ple = fieldResult.gerPicklistValues();
The only thing left for us to do is map the picklist values into an <apex:selectOptions> tag can use for display. Here is the entire method from our controller to do this:
public List<SelectOption> getCountries()
{
List<SelectOption> options = new List<SelectOption>();
Schema.DescribeFieldResult fieldResult = OfficeLocation__c.Country__c.getDescribe();
List<Schema.PicklistEntry> ple = fieldResult.getPicklistValues();
for( Schema.PicklistEntry f : ple)
{
options.add(new SelectOption(f.getLabel(), f.getValue()));
}
return options;
}
With our controller logic all complete, we can call the getCountries() method from our Visualforce page, and populate the <apex:selectList> tag:
<apex:selectList id=”countries” value=”{!Office_Location__c.Country__c}” size=”1″ required=”true”>
<apex:selectOptions value=”{!countries}”/>
</apex:selectList>
Thanks