Export DataTable to Excel in C#, VB.NET
Syncfusion Excel (XlsIO) library is a .NET Excel library used to create, read, and edit Excel documents. Using this library, you can import or export data between worksheet and DataTable in C# and VB.NET.
Syncfusion Excel (XlsIO) library supports exporting data from worksheet to data tables and CLR objects including DataTable and DynamicObjects. Exporting DataTable to Excel worksheet can be achieved through ImportDataTable only after the DataTable is filled with data.
Steps to export DataTable to an Excel file programmatically:
Step 1: Create a new C# console application project.
Create a new C# console application
Step 2: Install Syncfusion.XlsIO.WinForms NuGet package as a reference to your .NET Framework applications from the NuGet.org.
Install NuGet package
Step 3: Include following namespaces in Program.cs file.
C#
using Syncfusion.XlsIO; using System; using System.Data;
VB.NET
Imports Syncfusion.XlsIO Imports System Imports System.Data
Step 4: Add the following code snippet to export DataTable to Excel file.
C#
//Create an instance of ExcelEngine
using (ExcelEngine excelEngine = new ExcelEngine())
{
//Initialize Application
IApplication application = excelEngine.Excel;
//Set the default application version as Excel 2016
application.DefaultVersion = ExcelVersion.Excel2016;
//Create a new workbook
IWorkbook workbook = application.Workbooks.Create(1);
//Access first worksheet from the workbook instance
IWorksheet worksheet = workbook.Worksheets[0];
//Exporting DataTable to worksheet
DataTable dataTable = GetDataTable();
worksheet.ImportDataTable(dataTable, true, 1, 1);
worksheet.UsedRange.AutofitColumns();
//Save the workbook to disk in xlsx format
workbook.SaveAs("Output.xlsx");
}
VB.NET
'Create an instance of ExcelEngine
Using excelEngine As ExcelEngine = New ExcelEngine()
'Initialize Application
Dim application As IApplication = excelEngine.Excel
'Set the default application version as Excel 2016
application.DefaultVersion = ExcelVersion.Excel2016
'Create a new workbook
Dim workbook As IWorkbook = application.Workbooks.Create(1)
'Access first worksheet from the workbook instance
Dim worksheet As IWorksheet = workbook.Worksheets(0)
'Exporting DataTable to worksheet
Dim dataTable As DataTable = GetDataTable()
worksheet.ImportDataTable(dataTable, True, 1, 1)
worksheet.UsedRange.AutofitColumns()
'Save the workbook to disk in xlsx format
workbook.SaveAs("Output.xlsx")
End Using
Step 5: Load the DataTable using the following simple static method.
C#
private static DataTable GetDataTable()
{
//Create a DataTable with four columns
DataTable table = new DataTable();
table.Columns.Add("Dosage", typeof(int));
table.Columns.Add("Drug", typeof(string));
table.Columns.Add("Patient", typeof(string));
table.Columns.Add("Date", typeof(DateTime));
//Add five DataRows
table.Rows.Add(25, "Indocin", "David", DateTime.Now);
table.Rows.Add(50, "Enebrel", "Sam", DateTime.Now);
table.Rows.Add(10, "Hydralazine", "Christoff", DateTime.Now);
table.Rows.Add(21, "Combivent", "Janet", DateTime.Now);
table.Rows.Add(100, "Dilantin", "Melanie", DateTime.Now);
return table;
}
VB.NET
Private Shared Function GetDataTable() As DataTable
'Create a DataTable with four columns
Dim table As DataTable = New DataTable
table.Columns.Add("Dosage", GetType(System.Int32))
table.Columns.Add("Drug", GetType(System.String))
table.Columns.Add("Patient", GetType(System.String))
table.Columns.Add("Date", GetType(DateTime))
'Add five DataRows
table.Rows.Add(25, "Indocin", "David", DateTime.Now)
table.Rows.Add(50, "Enebrel", "Sam", DateTime.Now)
table.Rows.Add(10, "Hydralazine", "Christoff", DateTime.Now)
table.Rows.Add(21, "Combivent", "Janet", DateTime.Now)
table.Rows.Add(100, "Dilantin", "Melanie", DateTime.Now)
Return table
End Function
A complete working example to export DataTable to Excel can be downloaded from Export DataTable to Excel file.zip
By executing the program, you will get the output Excel file as shown below.
Output Excel document
Know more about Syncfusion Excel (XlsIO) library through the documentation, where you can find supported features like importing and exporting in DataTable, appending multiple records to worksheet using Template Markers, exporting worksheet into CLR Objects with respective code examples.
Refer here to explore the rich set of Syncfusion Excel (XlsIO) library features.
An online sample link to Export Data using CLR Objects.
See Also:
Export Excel file to DataTable
Starting with v16.2.0.x, if you reference Syncfusion assemblies from trial setup or from the NuGet feed, include a license key in your projects. Refer the link to learn about generating and registering Syncfusion license key in your application to use the components without trail message.
