IDataStore.ExportPlainJson(DwBuffer dwbuffer, int startRow, int endRow) Method

.NET Standard 2.x | Current Version (1.0.1)

0.5.0-alpha

1.0.1 (current)

Exports the rows (from the specified starting position to the ending position) from the specified buffer to a plain-format JSON string.

Namespace: PowerBuilder.Data

Assembly: PowerBuilder.Data.dll

Syntax

  public string ExportPlainJson(DwBuffer dwbuffer, int startRow, int endRow);

Parameters

dwbuffer PowerBuilder.Data.DwBuffer

A value of the DwBuffer enumerated datatype identifying the DataWindow buffer from which you want to export the data.

startRow System.Int32

The zero-based index number of the first row in the buffer that you want to export.

endRow System.Int32

The zero-based index number of the last row in the buffer that you want to export.

If it is negative, it indicates the rest of rows.

Returns

System.String

Returns the JSON string if it succeeds.

Examples

The following code example demonstrates how to export the department records in rows 1 and 2 in the primary buffer to a JSON string.

using PowerBuilder.Data;
using System;

namespace Appeon.ApiDoc.IDataStoreExamples
{
    public class ExportPlainJsonExample
    {
        private SchoolContext _context;

        public ExportPlainJsonExample(SchoolContext dataContext)
        {
            // Sets the data context
            _context = dataContext;
        }

        public void Example7()
        {
            // Instantiates a DataStore object with datawindow: d_department.
            var datastore = new DataStore("d_department", _context);

            datastore.Retrieve();

            // Exports records in rows 1 and 2 of the primary buffer
            string json = datastore.ExportPlainJson(DwBuffer.Primary, 0, 1);

            Console.WriteLine(json);

            /*The exported JSON file is:

            ExportPlainJson7.json  
            */
        }
    }
}

Example Refer To

JSON File: ExportPlainJson7

Applies to

.NET Standard

2.x