Retrieving data from Custom object to Select List using custom controller? Not getting any Output?

Question

I have following code

VF Page:

< apex:page controller="DisplayBooks">  
< apex:form >  
    < apex:selectList value="{!selectedVal}" size="1">   
    < apex:selectOptions value="{!openPresentationOptions}" />  
< /apex:selectList>  
< /apex:form>  
< /apex:page>  

Class:

public class DisplayBooks {  

    public String openPresentationOptions { get; set; }

    public String selectedVal { get; set; }       

    public List<SelectOption> getopenPresentationOptions(){    

         List<selectOption> options = new List<selectOption>();           

        for(Books__c book : [SELECT Id,Name__c FROM Books__c]){

            options.add(new SelectOption(book.Id,book.Name__c));
        }
        return options;
    }    
}

Answer 1

May be VF is getting the openPresentationOptions string, rather than getopenPresentationOptions()

try changing getopenPresentationOptions() to like getPresentationOptions()

and then change VF page to < apex:selectOptions value="{!PresentationOptions}" />

Answer 2

I think you should remove this line from apex class.

public String openPresentationOptions { get; set; }