Hi - I'm trying to write code to overwrite Opportunity.Amount with a value caluclated in a calculated field.  I've tried a couple of differnt approaches, but am stumped.

My latest attempt was to write a class with a method that copied the value in a user-defined field to the opportunity.amount field  when the record was saved.  I also tried writing similar code that updates one or more selected records and is executed on a button is clicked from a list page.  This apporach, like the others that I have tried, resulted in an error saying that opportunity.amount is a read-only field.

I'm stumped.

I've had no problem updating and manipulating other standard object fields.  The Oppportunity.Amount field is an important one to contain meaningful data, as it is referenced by SF forecasting and Campaigns.  So far, I am not able to put the values in this field that I would like it to contain. 

I would really appreciate any guidance that is provided about how I can achieve this (or if it is hopeless - which I cannot believe).

Thank you!

Rich

Hi - I'm trying to write a piece of javascript to execute when a button is clicked to update the Amount field(or fields for multi select) of Opportunities.  I'm having trouble (an unrecognized ; ?) with the following bit fo code and would appreciate any help you may send my way.  

Also - could someone please point me towards a document that lists all the SF standard objects with their properties and methods?  

Thank you in Advance, 

Rich 

{!REQUIRESCRIPT("/soap/ajax/13.0/connection.js")}

var records = {!GETRECORDIDS( $ObjectType.Opportunity )};

var newRecords = [];

if (records[0] == null)

{ alert("Please select at least one row!") }

else

{

for (var n=0; n<records.length; n++)

{

var c = new sforce.SObject("Opportunity");

c.Id = records[n];

// I want to replace the Amount with a calculated field from the current record 

c.Amount = {!Opportunity.FirstYearValue__c};

newRecords.push(c);

}

result = sforce.connection.update(newRecords);

window.location.reload();

}