I have some code that wants a JSON list like ["Choice1", "Choice2", "Choice3"] (not just three entries, but maybe 3 or 20 or 50 or so). How can I return that as JSON?

LOCAL loSerializer AS wwJsonSerializer
loSerializer = CREATEOBJECT("wwJsonSerializer")
RtnStr = loSerializer.Serialize(RtnStr)
Response.ContentType = "application/json"
Response.Write(RtnStr)

I used some code like the above where RtnStr = ["Choice1", "Choice2", "Choice3"] (with the brackets) and that did not work and I also tried it with the first three lines commented out and that did not work.

If you have a JSON string that contains the array/collection data - just return it. Don't serialize it which turns it into a JSON string, which is not what you want here.

The two options are:

• You're serializing a collection
  Use the JSON Serializer to create the string
• Your returning an already created JSON value as a string
  Return the string directly - don't use the JSON Serializer

LOCAL loSerializer AS wwJsonSerializer
loSerializer = CREATEOBJECT("wwJsonSerializer")

*** Assuming RtnStr contains 
RtnStr = '["val1","val2","val3"]'   && You provide the JSON value as a string

*** Don't serialize the string
* RtnStr = loSerializer.Serialize(RtnStr)

*** Json Response
Response.ContentType = "application/json"
Response.Write(RtnStr)

+++ Rick ---

That's how I'd started out. Maybe there is a problem in the Javascript. I'll start from the top and go at it again. Thanks for your reply.

You should never create JSON by hand because text needs to be potentially encoded.

For an array/collection use:

loCol = CREATEOBJECT("Collection")
loCol.Add("val1")
loCol.Add("val2")
loCol.Add("val3")

loSer = CREATEOBJECT("wwJsonSerializer")
lcJson = loSer.Serialize(loCol)

Response.ContentType = "application/json"
Response.Write(lcJson)