This source code sample will show how to export data from XLS spreadsheet to dataset in C# and Visual Basic .NET using Bytescout Spreadsheet SDK.
C#
using System; using System.Data; namespace Bytescout.Spreadsheet.Demo.Csharp.ExportToDataSet { class Program { static void Main(string[] args) { const string inputFile = @"PeriodicTableOfElementsSpreadsheet.xls"; // Open and load spreadsheet Spreadsheet spreadsheet = new Spreadsheet(); spreadsheet.LoadFromFile(inputFile); // Get the data from the spreadsheet DataSet dataSet = spreadsheet.ExportToDataSet(); // Close spreadsheet spreadsheet.Close(); // Display data in the first data table in the dataset DataTable dt = dataSet.Tables[0]; Console.WriteLine("Displaying contents of first datatable"); for (int i = 0; i < dt.Rows.Count; i++) { for (int j = 0; j < dt.Columns.Count; j++) { Console.Write(dt.Rows[i][j] + " "); } Console.WriteLine(); } // Pause Console.ReadLine(); } } } [/vb] <p><strong>VB.NET</strong></p> [vb]Module Module1 Sub Main() Dim inputFile As String = "PeriodicTableOfElementsSpreadsheet.xls" 'Open and load spreadsheet Dim spreadsheet = New Spreadsheet() spreadsheet.LoadFromFile(inputFile) 'Get the data from the spreadsheet Dim ds As DataSet = spreadsheet.ExportToDataSet() 'Close spreadsheet spreadsheet.Close() 'Display data in first datatable of dataset Dim dt As DataTable = ds.Tables(0) Console.WriteLine("Displaying contents of first datatable") For i As Integer = 0 To dt.Rows.Count - 1 For j As Integer = 0 To dt.Columns.Count - 1 Console.Write(dt.Rows(i)(j) + " ") Next Console.WriteLine() Next 'Pause Console.ReadLine() End Sub End Module