DataStoreDataExtensions.ImportString(this IDataStoreBase dataStore, string text, int startRow) Method

.NET Standard 2.x

Inserts the tab-separated data from a string into the DataStore. You can specify which row in the string is the first row to import.

Namespace: DWNet.Data

Assembly: DWNet.Data.dll

Syntax

  public static int ImportString(this IDataStoreBase dataStore, string text, int startRow);

Parameters

text System.String

A string from which you want to copy the data. The string should contain tab-separated columns.

startrow System.Int32

The zero-based number of the first row in the string that you want to import. If it is negative, 0 is used.

Returns

System.Int32

Returns the number of rows that were imported if it succeeds.

Remarks

The string must be formatted in tab-separated. Each line must end with a carriage return and a newline character (~r~n). If the string has four tab-separated columns, one line might look like for a tab-separated string:

col1_data\t col2_data\t col3_data\t col4_data\r\n

The string should consist of rows of data. If the data includes column headings or row labels, set the startRow and startColumn arguments to skip them. The datatype and order of the DataStore columns must match with the columns of data in the string.

Examples

The following code example demonstrates how to import records starting from the first row, from a string to a DataStore.

using DWNet.Data;
using System;

namespace Appeon.ApiDoc.DataStoreDataExtensionsExamples
{
    public class ImportStringExample
    {
        private readonly SchoolContext _context;

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

        public void Example2()
        {
            // Instantiates a DataStore object with datawindow: d_department.
            var datastore = new DataStore("d_department", _context);
			
			// Gets the string to be imported.
            string importString = GetImportString();

            // Starting from the first row, imports data from the string to the datastore.
            datastore.ImportString(importString, 0);

            Console.WriteLine("Rowcount: {0}", datastore.RowCount);

            for (int row = 0, rowcount = datastore.RowCount; row < rowcount; row++)
            {
                Console.WriteLine("DepartmentID: {0}; Name: {1}; Budget: {2}",
                                  datastore.GetItem<int>(row, "departmentid"),
                                  datastore.GetItem<string>(row, "name"),
                                  datastore.GetItem<decimal>(row, "budget"));
            }

            /*This code produces the following output:

            Rowcount: 3
            DepartmentID: 1; Name: Engineering; Budget: 350000.0000
            DepartmentID: 2; Name: English; Budget: 120000.0000
            DepartmentID: 4; Name: Economics; Budget: 200000.0000
           */
        }
    }
}

Example Refer To

Model Class: D_Department
DataWindow File: d_department

Applies to

.NET Standard

2.x