GetJsonArray( ) method (JsonObject)

Gets the JsonArray value of the named property.

Return type: Progress.Json.ObjectModel.JsonArray class

Access: PUBLIC

Applies to: Progress.Json.ObjectModel.JsonObject class

Syntax

GetJsonArray( INPUT property-name AS CHARACTER )

property-name

A CHARACTER expression indicates the name of the property value to be retrieved from the JsonObject.

A JsonError is raised if:

• property-name is the empty string (""), or is the Unknown value (?)
• The property does not exist
• The property value is not a JsonArray

The following example demonstrates the functionality of the GetJSonArray( ) method.

The following is a sample JsonObject:

{
  "CustOrder": {
    "CustNum": 1,
    "Name": "Lift Tours",
    "NewCust": false,
    "ttOrder": [
      {"OrderNum": 82, "OrderDate": "2010-09-20"},
      {"OrderNum": 83, "OrderDate": "2010-09-20"}
        ]
    }
}

The following is a code fragment that uses the GetJsonArray( ) method:

DEFINE VARIABLE CustInfo AS LONGCHAR NO-UNDO.
DEFINE VARIABLE myObj AS JsonObject NO-UNDO.
DEFINE VARIABLE myArray AS JsonArray NO-UNDO.
DEFINE VARIABLE myLongchar as LONGCHAR NO-UNDO.

/*
 .
 . Set CustInfo to JsonObject shown above.
 .
 */

myObj = CAST(myParser:Parse(CustInfo), JsonObject).
myArray = myObj:GetJsonObject("CustOrder"):GetJsonArray("ttOrder").
myArray:Write(myLongchar, TRUE).

The following is the resulting myLongchar value:

[
    {"OrderNum": 82, "OrderDate": "2010-09-20"},
    {"OrderNum": 83, "OrderDate": "2010-09-20"}
]