- Exporting the query content
- Exporting a single record
- Array items
In french: <Source>.ExporteJSON
Not available with these kinds of connection
Exports the records found in a data file (HFSQL or OLE DB), view or query to a JSON file.
// Export all customers
<Result> = <Source>.ExportJSON([<JSON file> [, <Items to export>]] [, <Options> [, <Progress Bar>]])
- True if the operation was performed,
- False if a problem occurs. HError is used to identify the error.
<Source>: Type corresponding to the specified source
Name of data file, view or query used.
<JSON file>: Optional character string
Full path of JSON file to generate.
<Items to export>: Optional character string
List of names of items to export. The names are delimited by single quotes and they are separated by commas or CR characters. The names of composite key items, binary items and binary memo items are ignored.
If this parameter is an empty string (""), all of the data file items are exported (except composite key, binary, binary memo, and password items).
<Options>: Optional constant
Specifies the creation mode of JSON file:
|hExpBreakable||The export can be interrupted by pressing Esc. |
If the export is interrupted, the JSON file is valid and it only contains the records exported before the interruption.
|hExpCreation||If the JSON file already exists, it is overwritten. An error occurs if this option is not specified and if the JSON file exists.|
|Standard operating mode.|
<Progress Bar>: Optional control name or window name
Name of Progress Bar control or name of window used to show the progress of file creation.
Exporting the query content
To export the query content, you must initialize the query (<Source>.ExecuteQuery
) before using <Source>.ExportJSON
Exporting a single record
If one of the exported items is an Array item, each element of the array item is exported in a new level:
"Item1":Data of item 1,
"Item2":Data of item 2,
[Data element 1, Data element 2, ...]
: Composite key, binary, binary memo and password items are ignored.
Business / UI classification: Business Logic
This page is also available for…