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Andrey NullPointerException de-reference a null object when I try to save
Hi all!
I created vf page and when I try to save a new record, I get an error: "System.NullPointerException: Attempt to de-reference a null object
Error is in expression '{!Save}' in component <apex:commandButton> in page te_new".
Can someone tell me, where I'm wrong?
Vf page code:
I created vf page and when I try to save a new record, I get an error: "System.NullPointerException: Attempt to de-reference a null object
Error is in expression '{!Save}' in component <apex:commandButton> in page te_new".
Can someone tell me, where I'm wrong?
Vf page code:
<apex:page standardController="Travel_Expenses__c" extensions="TE_Object">
<apex:form >
<apex:pageBlock title="Travel Information Edit" mode="edit">
<apex:pageBlockButtons >
<apex:commandButton action="{!Save}" value="Save"/>
<apex:commandButton action="{!SaveAndNew}" value="Save & New"/>
<apex:commandButton action="{!Cancel}" value="Cancel"/>
</apex:pageBlockButtons>
<apex:pageBlockSection title="Information" columns="2" >
<apex:pageBlockSectionItem >
Travel Information
<apex:inputField value="{!NewTE.Traveler__c}" required="true"/>
</apex:pageBlockSectionItem>
<apex:pageBlockSectionItem >
Expense Type
<apex:inputField value="{!NewTE.Expense_Type__c}" required="true"/>
</apex:pageBlockSectionItem>
<apex:pageBlockSectionItem >
Amount
<apex:inputField value="{!NewTE.Amount__c}" required="true"/>
</apex:pageBlockSectionItem>
<apex:pageBlockSectionItem >
Country
<apex:inputField value="{!NewTE.Country__c}" />
</apex:pageBlockSectionItem>
<apex:pageBlockSectionItem >
Inventory Number
<apex:inputField value="{!NewTE.Inventory_Number__c}"/>
</apex:pageBlockSectionItem>
<apex:pageBlockSectionItem >
Description
<apex:inputField value="{!NewTE.Description__c}" required="true"/>
</apex:pageBlockSectionItem>
</apex:pageBlockSection>
</apex:pageBlock>
</apex:form>
</apex:page>
apex class:
public class TE_Object
{
public Travel_Expenses__c NewTE{get;set;}
public TE_Object(ApexPages.StandardController controller) {
}
public pagereference Save()
{
try
{
insert NewTE; //Error message on this line
}
catch(System.DMLException e)
{
ApexPages.addMessages(e);
return null;
}
return null;
}
public pagereference SaveAndNew()
{
try
{
insert NewTE;
}
catch(System.DMLException e)
{
ApexPages.addMessages(e);
return null;
}
return (new ApexPages.StandardController(new Travel_Expenses__c())).edit();
}
}
public class TE_Object { public Travel_Expenses__c NewTE{get;set;} public TE_Object(ApexPages.StandardController controller) { NewTE = new Travel_Expenses__c (); // Initializing the variable } public pagereference Save() { try { insert NewTE; //Error message on this line } catch(System.DMLException e) { ApexPages.addMessages(e); return null; } return null; } public pagereference SaveAndNew() { try { insert NewTE; } catch(System.DMLException e) { ApexPages.addMessages(e); return null; } return (new ApexPages.StandardController(new Travel_Expenses__c())).edit(); } }If this helps,please mark it as best answer to help others :)All Answers
public class TE_Object { public Travel_Expenses__c NewTE{get;set;} public TE_Object(ApexPages.StandardController controller) { NewTE = new Travel_Expenses__c (); // Initializing the variable } public pagereference Save() { try { insert NewTE; //Error message on this line } catch(System.DMLException e) { ApexPages.addMessages(e); return null; } return null; } public pagereference SaveAndNew() { try { insert NewTE; } catch(System.DMLException e) { ApexPages.addMessages(e); return null; } return (new ApexPages.StandardController(new Travel_Expenses__c())).edit(); } }If this helps,please mark it as best answer to help others :)Please change your constructor method as below and you should be good.
public TE_Object(ApexPages.StandardController controller) { this.NewTE = (Travel_Expenses__c)controller.getRecord(); }If this answers your question, please mark this as the Best Answer for this post, so that others can benefit from this post.
Thanks,
Shashank