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Ashok S 7 how to slove this error
Hai guys
When i create the visual force for sending massemailmessages.following error will coming
System.NullPointerException: Attempt to de-reference a null object
Class.MassEmailMessage_controller1.<init>: line 10, column 1
please help me any one
vf page
------------------------------
<apex:page standardcontroller="contact" extensions="MassEmailMessage_controller1">
<apex:form >
<apex:commandButton value="sendEmail" action="{!sendEmail}"/>
</apex:form>
</apex:page>
controller
--------------------------------
public class MassEmailMessage_controller1 {
private final list<Id> contactids;
public list<contact> con;
public MassEmailMessage_controller1(ApexPages.StandardController controller) {
con = [select Id from contact limit 250];
for(integer i = 0;i<250;i++)
{
contactids.add(con[i].Id);
}
}
public void sendEmail()
{
Messaging.MassEmailMessage mail = new Messaging.MassEmailMessage();
mail.setTargetObjectIds(contactids);
Messaging.sendEmail(new Messaging.MassEmailMessage[]{mail});
}
}
When i create the visual force for sending massemailmessages.following error will coming
System.NullPointerException: Attempt to de-reference a null object
Class.MassEmailMessage_controller1.<init>: line 10, column 1
please help me any one
vf page
------------------------------
<apex:page standardcontroller="contact" extensions="MassEmailMessage_controller1">
<apex:form >
<apex:commandButton value="sendEmail" action="{!sendEmail}"/>
</apex:form>
</apex:page>
controller
--------------------------------
public class MassEmailMessage_controller1 {
private final list<Id> contactids;
public list<contact> con;
public MassEmailMessage_controller1(ApexPages.StandardController controller) {
con = [select Id from contact limit 250];
for(integer i = 0;i<250;i++)
{
contactids.add(con[i].Id);
}
}
public void sendEmail()
{
Messaging.MassEmailMessage mail = new Messaging.MassEmailMessage();
mail.setTargetObjectIds(contactids);
Messaging.sendEmail(new Messaging.MassEmailMessage[]{mail});
}
}
Replace your class with following code
public class MassEmailMessage_controller1 { private final list<Id> contactids; public list<contact> con; public MassEmailMessage_controller1(ApexPages.StandardController controller) { List<id> contactids = new List<id>(); con = [select Id from contact limit 250]; for(integer i = 0;i<250;i++) { contactids.add(con[i].Id); } } public void sendEmail() { Messaging.MassEmailMessage mail = new Messaging.MassEmailMessage(); mail.setTargetObjectIds(contactids); Messaging.sendEmail(new Messaging.MassEmailMessage[]{mail}); } }Thanks,
Himanshu
Salesforce Certified Developer, Administrator, Service Cloud Consultant
P.S. If my answer helps you to solve your problem please mark it as best answer. It will help other to find best answer.
Try this
public class MassEmailMessage_controller1 { private final list<Id> contactids; public list<contact> con; public MassEmailMessage_controller1(ApexPages.StandardController controller) { contactids = new list<Id>(); con = new list<contact>(); con = [select Id from contact limit 250]; for(integer i = 0;i<250;i++) { contactids.add(con[i].Id); } } public void sendEmail() { Messaging.MassEmailMessage mail = new Messaging.MassEmailMessage(); mail.setTargetObjectIds(contactids); Messaging.sendEmail(new Messaging.MassEmailMessage[]{mail}); } }