Mastering Dynamic : Dynamic Page References Variable in Apex class

      Problem Statement:  How can we dynamically configure the page reference based on      

      the variable passed as the page name in an Apex class?

      Solution: we can use the following piece of code to enable dynamic page reference setup

in an Apex class.

      //Code Starts Here

       ApexPage VFPageName =  [SELECT Name, NamespacePrefix FROM ApexPage          

       WHERE       Name = 'YourPageName' LIMIT 1];

      

      String pageName = VFPageName.Name;

     

     //Append namespace if the page is packaged

     if(String.isNotEmpty(VFPageName.NamespacePrefix)) {

        pageName = VFPageName.NamespacePrefix+'__' + pageName;

      }

     

      String partialPageUrl = '/apex/' + pageName;

      PageReference pdf = new PageReference(partialPageUrl);

      System.debug(pdf.getUrl());

      

      //Code Ends Here