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salesforce csv 1000 limitation issue

2015-06-25 15:35 645 查看

http://salesforce.stackexchange.com/questions/69555/view-state-error-while-creating-generating-an-csv-file
https://developer.salesforce.com/forums/?id=906F00000008xtsIAA
You can use a list of lists and nested repeaters to get around the 1000 records in a list limit. Here's an example:

Controller

01	public class exportCSVController {

03	public List < List <myClass > > myList { get ;set;}

05	public exportCSVController() {

06	myList = new List < List <myClass > > ();

07	List <myClass > temp = new List <myClass > ();

09	for (Integer i = 0 ; i < 2500 ; i++){

10	if (temp.size() < 1000 ){

11	myClass m = new myClass();

12	m.val 1 = 'val1 ' + i;

13	m.val 2 = 'val2 ' + i;

14	temp.add(m);

else

17	myList.add(temp);

18	temp = new List <myClass > ();

19	myClass m = new myClass();

20	m.val 1 = 'val1 ' + i;

21	m.val 2 = 'val2 ' + i;

22	temp.add(m);

25	myList.add(temp);

29	public class myClass{

30	public string val 1 { get ;set;}

31	public string val 2 { get ;set;}

VisualForce Page:

view
source

print ?

1	<apex:page controller= "exportCSVController" cache= "true" contentType= "text/csv#Export.csv" language= "en-US" >

2	"Col A" , "Col B"

3	<apex:repeat value= "{!myList}" var= "a" >

4	<apex:repeat value= "{!a}" var= "asub" >

5	"{!asub.val1}" , "{!asub.val2}"

6	</apex:repeat >

7	</apex:repeat >

8	</apex:page >

This should allow you to have up to 10,00,000 records.

June 7, 2012

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