LoadString
PowerScript function
Description
Loads a JSON string.
Required JSON format
-
For JSONParser object: The string that can be loaded by the
JSONParser object must be JSON-formatted. -
For JSONPackage object: The string that can be loaded by the
JSONPackage object must be of JSONObjectItem type (cannot be an array)
and the values for the keys in the JSON can be any valid string,
object, or array. For details, see JSON formats (required by
JSONPackage object).
Applies to
JSONParser and JSONPackage objects
Syntax
|
1 |
objectname.LoadString ( JsonData ) |
|
Argument |
Description |
|---|---|
|
objectname |
The name of the JSONParser or JSONPackage object to |
|
JsonData |
(For JSONParser object) A JSON-formatted (For JSONPackage object) The JSON data of |
Return value
String.
Returns the empty string (“”) if it succeeds and the error message
if an error occurs. If any argument’s value is null, the method returns
null.
Examples
This example loads a JSON string into the JSONParser object:
|
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String ls_Error JsonParser lnv_JsonParser lnv_JsonParser = Create JsonParser String ls_Json = '{"id":1, "name":"evan1", "birthday":2340323884}' ls_Error = lnv_JsonParser.LoadString(ls_Json) if Len(ls_Error) > 0 then MessageBox("Error", ls_Error) end if |
This example gets the data from the server and then loads the
“d_employee” data to the DataWindow:
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int li_rc string ls_JsonPackage, ls_Error, ls_EmployeeJson HttpClient lnv_HttpClient JsonPackage lnv_package lnv_HttpClient = create HttpClient lnv_package = create JsonPackage // Request the JSON data package from server li_rc = lnv_HttpClient.SendRequest("GET", "http://demo.appeon.com/PB/webapi_client/getjsonpackage/employee/102") // Get the data if li_rc = 1 and lnv_HttpClient.GetResponseStatusCode() = 200 then lnv_HttpClient.GetResponseBody(ls_JsonPackage) // Extract the JSON data package ls_Error = lnv_package.LoadString(ls_JsonPackage) if Len(ls_Error) = 0 then ls_EmployeeJson = lnv_package.GetValue("d_employee") dw_1.ImportJson(ls_EmployeeJson) else Messagebox("Error", ls_Error) end if end if |
See also