Hi.

The code you provide doesn't show the whole logic. I give you two examples:

1st.

Long ll_RootArray, ll_ChildArray
integer li_i, li_j
JsonGenerator lnv_JsonGenerator

lnv_JsonGenerator = Create JsonGenerator

// Create an array root item
ll_RootArray = lnv_JsonGenerator.CreateJsonArray()

for li_i = 1 to 3
	// Add an array to the root Array.
	ll_ChildArray = lnv_JsonGenerator.AddItemArray(ll_RootArray)
	for li_j = 1 to 5
		// Add an array child item
		lnv_JsonGenerator.AddItemNumber(ll_ChildArray, li_j)
	next 
next

messagebox("", lnv_JsonGenerator.getjsonstring( ))

if isvalid(lnv_JsonGenerator) then destroy lnv_JsonGenerator

The resulting json will be:

[
	[
		1,
		2,
		3,
		4,
		5
	],
	[
		1,
		2,
		3,
		4,
		5
	],
	[
		1,
		2,
		3,
		4,
		5
	]
]

2nd.

Long ll_RootArray, ll_ChildArray
integer li_i, li_j
JsonGenerator lnv_JsonGenerator

lnv_JsonGenerator = Create JsonGenerator

// Create an array root item
ll_RootArray = lnv_JsonGenerator.CreateJsonObject()

for li_i = 1 to 3
	// Add an array to the root Array.
	ll_ChildArray = lnv_JsonGenerator.AddItemArray(ll_RootArray, "MyNumbers" + string(li_i))
	for li_j = 1 to 5
		// Add an array child item
		lnv_JsonGenerator.AddItemNumber(ll_ChildArray, li_j)
	next 
next


messagebox("", lnv_JsonGenerator.getjsonstring( ))

if isvalid(lnv_JsonGenerator) then destroy lnv_JsonGenerator

The resulting json will be:

{
	"MyNumbers1": [
		1,
		2,
		3,
		4,
		5
	],
	"MyNumbers2": [
		1,
		2,
		3,
		4,
		5
	],
	"MyNumbers3": [
		1,
		2,
		3,
		4,
		5
	]
}

While I don't know what exactly you try to do, I hope that looking those examples will help you to achieve your target.

Andreas.