CODEWITHSUNDEEP
jsondelphisuperobject
Michael Grenzer
Michael Grenzer

Reputation: 501

Delphi / SuperObject - Accessing Subnodes

I have the following JSON from my server:

{
   "userid":"12",
   "username":"TestChar",
   "logged":"yes",
   "status":"Premium User",
   "areas":{
      "SERVICEAREA_XX1":{
         "id":"1",
         "area":"SERVICEAREA_XX1",
         "version":"3000",
         "usr_group":"0"
      },
      "SERVICEAREA_XX2":{
         "id":"2",
         "area":"SERVICEAREA_XX2",
         "version":"31000",
         "usr_group":"0"
      },
      "SERVICEAREA_XX3":{
         "id":"3",
         "area":"SERVICEAREA_XX3",
         "version":"2000",
         "usr_group":"1"
      }
   }
}

With SuperObjects i can get the count of "SERVICEAREA"'s with

ob['areas'].AsObject.count

How can i now get access to the elements of the different "SERVICEAREA"'s?

Thanks for your help...

Upvotes: 8

Views: 5324

Answers (3)

MajidTaheri
MajidTaheri

Reputation: 3983

use this code If you want to access key/value(like Javascriptfor..in)

 if ObjectFindFirst(JsonData, ite) then
    with JsonData.AsObject do
    repeat
      PutO(ite.key, ite.val.Clone);
    until not ObjectFindNext(ite);
    ObjectFindClose(ite);

Upvotes: 0

Marjan Venema
Marjan Venema

Reputation: 19346

you can access elements of an array using a for ... in loop:

var
  item: ISuperObject;
begin
  for item in ob['areas'] do ...

or without an enumerator, using a 'normal' for loop:

var
  idx: Integer;
  item: ISuperObject;
begin
  for idx := 0 to ob['areas'].AsArray.Length - 1 do
    item := ob['areas'].AsArray[idx];

Upvotes: 12

LU RD
LU RD

Reputation: 34889

Marjan has the answer for you. Here is a little more information how to access the item properties with an example:

var
  item: ISuperObject;
...
for item in ob['areas'] do
begin
  WriteLn(item['id'].AsInteger);
  WriteLn(item['area'].AsString);
  WriteLn(item['version'].AsInteger);
end;

Upvotes: 9

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