iOS Question Solved: Expected: NSArray, object type: NSNull

[b4auser1]

I handle a json string returned from server.
json string can contain json array, or can not contain.
When there is no json array I have a problem.
map.ContainsKey("rows") returns true.
map.Get("rows") returns not List, but wrapper of NSNull.
Dim l_object As Object = map.Get("rows")
l_object <> null returns sometimes true, sometimes false.
How to handle this case ?

json string: {..., "rows":null}

 

[Erel]

Can you upload the json file (that returns null)?

 

[b4auser1]

Can you upload the json file (that returns null)?

Try this: {"rows":null}

 

[Erel]

I was able to reproduce it. This check will always work:

If l_object <> null And GetType(l_object) <> "NSNull" Then