Apex Code Development You need to sign in to do that
Don't have an account?
ss123 System.NullPointerException: Attempt to de-reference a null object
I have a VF page and if I don't enter any values on that I will get following error
System.NullPointerException: Attempt to de-reference a null object
Error is in expression '{!Saveme}' in component <apex:commandButton> in page cancellistingpage
Class.CancelListingPageController.Saveme: line 18, column 1
controller as below
public class CancelListingPageController {
public String name{get;set;}
Public String ForgedDocs {get;set;}
Public String Ids{get;set;}
Public Listing__c Listing {get;set;}
Public PageReference Saveme(){
Contact con = [SELECT Id, Name, Contact_Notes__c from Contact Where Id = :Listing.Contact__r.Id];
Map<Id, Case> caseMap = new Map<Id, Case>([Select Id, Salesforce_Case_Link__c, Subject,
CreatedDate, Status, OwnerId, All_Attachments__c
from Case
where ContactId = :con.Id
order by CreatedDate desc]);
if(Listing.Cancellation_Reason__c.contains('MISC Other reason') && (Listing.Cancellation_Note__c==null ||Listing.Custom_Note__c==null))
{
ApexPages.Message myMsg = new ApexPages.Message(ApexPages.Severity.ERROR,'Internal Cancellation Note & Custom Adverse Action Note are required');
ApexPages.addMessage(myMsg);
return null;
}
Update Listing;
Return new pagereference('/apex/Listing?id='+ids);
}
public CancelListingPageController(ApexPages.StandardController controller) {
ids = controller.getId();
Listing = [select Cancellation_Note__c,Forged_Docs__c,Status__c,
Cancellation_Reason__c,Custom_Note__c,Contact__r.id,Cancellation_Reason_Code__c from Listing__c where id =: ids];
Listing.Status__c='Cancelled';
}
Hello,
In your VF page first define standard controller attribute ie "standardcontroller="contact" and second define extension attribute on page tag ie "extension=CancelListingPageController". Still if it doesn't work then check if you are getting null value anywhere by using system.debug statements.
Hey ss123
How can you update Listing in saveme() method, were you have dont nothing with it,
you should do like this
public class CancelListingPageController {
public String name{get;set;}
Public String ForgedDocs {get;set;}
Public String Ids{get;set;}
Public Listing__c Listing {get;set;}
//Constructor
public CancelListingPageController(ApexPages.StandardController controller) {
ids = controller.getId();
Listing__c = new Listing__c();
}
//Method
Public PageReference Saveme(){
//Do this query here
Listing = [select Cancellation_Note__c,Forged_Docs__c,Status__c,
Cancellation_Reason__c,Custom_Note__c,Contact__r.id,Cancellation_Reason_Code__c from Listing__c where id =: ids];
Listing.Status__c='Cancelled';
Contact con = [SELECT Id, Name, Contact_Notes__c from Contact Where Id = :Listing.Contact__r.Id];
Map<Id, Case> caseMap = new Map<Id, Case>([Select Id, Salesforce_Case_Link__c, Subject,
CreatedDate, Status, OwnerId, All_Attachments__c from Case
where ContactId = :con.Id order by CreatedDate desc]);
if(Listing.Cancellation_Reason__c.contains('MISC Other reason') && (Listing.Cancellation_Note__c==null ||Listing.Custom_Note__c==null))
{
ApexPages.Message myMsg = new ApexPages.Message(ApexPages.Severity.ERROR,'Internal Cancellation Note & Custom Adverse Action Note are required');
ApexPages.addMessage(myMsg);
return null;
}
if(Listing.size() > 0) {
Update Listing;
Return new pagereference('/apex/Listing?id='+ids);
}
}
}