IDataStore.GetItemDate(int row, short column, DwBuffer bufferType = DwBuffer.Primary, bool isOriginalValue = false) Method

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

0.5.0-alpha

1.0.1 (current)

Gets data whose type is DateTime for the specified row and column from the specified buffer of the DataStore. You can obtain the data that was originally retrieved and stored in the database, as well as the current value in the primary, delete, or filter buffers. The time value is set to 12:00:00 midnight (00:00:00).

Namespace: PowerBuilder.Data

Assembly: PowerBuilder.Data.dll

Syntax

  public DateTime? GetItemDate(int row, short column, DwBuffer bufferType = DwBuffer.Primary, bool isOriginalValue = false);

Parameters

row System.Int32

The zero-based row number to get data.

column System.Int16

The zero-based column number to get data.

bufferType PowerBuilder.Data.DwBuffer

The specified buffer of the DataStore. The default is DwBuffer.Primary.

isOriginalValue System.Boolean

Whether to obtain the data that was originally retrieved.

True: to obtain the data that was originally retrieved; False (default): to obtain the current data.

Returns

System.DateTime?

Returns the DateTime? value in the specified row and column.

The time value is set to 12:00:00 midnight (00:00:00).

Remarks

Use GetItemDate when you want to get information from the DataWindow buffer. To access a row in the original buffer, specify the buffer that the row currently occupies (primary, delete, or filter) and the number of the row in that buffer. When you specify true for isOriginalValue, the method gets the original data for that row. An execution error occurs when the datatype of the DataStore column does not match with the datatype of the method; in this case, datetime.

Examples

The following code example demonstrates how to use the GetItemDate method to get the date-type value in the specified row and column.

using PowerBuilder.Data;
using System;

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

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

        public void Example1()
        {
            // Instantiates a DataStore object with datawindow: d_coursedescription.
            var datastore = new DataStore("d_coursedescription", _context);

            datastore.Retrieve();

            datastore.SetItem(0, "inputdate", new DateTime(2018, 01, 01));

            // Gets the original value in row 1 and in column 1 and 6 of DataStore
            // Column 6 (Column name is "Input") is DateTime? type
            Console.WriteLine(
                "Original value: Description: {0};\n" +
                "inputdate: {1}",
                datastore.GetItem<string>(0, 1),
                datastore.GetItemDate(0, 5, DwBuffer.Primary, true));

            // Gets the modified value in row 1 and in column 1 and 6 of DataStore
            Console.WriteLine(
                "Modified value: Description: {0};\n" +
                "inputdate: {1}",
                 datastore.GetItem<string>(0, 1),
                 datastore.GetItemDate(0, 5, DwBuffer.Primary, false));

            /*This code produces the following output:
             
            Original value: Description: Calculus Description;
            inputdate: 8/8/2008 12:00:00 AM
            Modified value: Description: Calculus Description;
            inputdate: 1/1/2018 12:00:00 AM
            */
        }
    }
}

Applies to

.NET Standard

2.x