Excel to DataGrid or DataGridView in C#.

4 mins read

Syncfusion® Excel (XlsIO) library is a .NET Excel library used to create, read, and edit Excel documents. It also, converts Excel documents to PDF files. Using this library, you can load data from Excel to DataGrid or DataGridView in C#.

Using XlsIO, data can be loaded from Excel to DataGrid or DataGridView in the following ways:

Steps to load data from Excel to DataGrid or DataGridView, programmatically:

Step 1: Create a new Windows Forms application project.

Create a new Windows Forms application in .NET Excel library

Create a new Windows Forms application

Step 2: Name the application.

Name the application in .NET Excel library

Name the application

Step 3: Install the Syncfusion.XlsIO.WinForms NuGet package as a reference to your .NET Framework application from NuGet.org.

Install NuGet package in .NET Excel library

Install NuGet package

Step 4: Include the following namespaces in the Form1.cs file.

using Syncfusion.XlsIO;

VB.NET

Imports Syncfusion.XlsIO

Step 5: Add the below code in Form1.Designer.cs file for a new button.

private DataGrid dataGrid;
private Button btnImport;
private Label label;
 
private void InitializeComponent()
{
  btnImport = new Button();
  dataGrid = new DataGrid();
  label = new Label();
    
  // Button   
  btnImport.Location = new System.Drawing.Point(41, 404);
  btnImport.Size = new System.Drawing.Size(280, 23);
  btnImport.Text = "Load Excel to DataGrid";
  btnImport.Click += new EventHandler(btnImport_Click);
 
  // Label
  label.Location = new System.Drawing.Point(0, 50);
  label.Size = new System.Drawing.Size(426, 48);
  label.Text = "Click the button to load Excel spreadsheet to DataGrid through Essential XlsIO.";
  label.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
 
  // DataGrid
  dataGrid.Location = new System.Drawing.Point(29, 96);
  dataGrid.Size = new System.Drawing.Size(312, 292);
   
  // Excel to DataGrid 
  ClientSize = new System.Drawing.Size(425, 434);
  Controls.Add(dataGrid);
  Controls.Add(label);
  Controls.Add(btnImport);
  Text = "Load DataGrid";
}

VB.NET

Private WithEvents label As Label
Private WithEvents btnImport As Button
Private WithEvents dataGrid As DataGrid
 
Private Sub InitializeComponent()
  label = New Label()
  btnImport = New Button()
  dataGrid = New DataGrid()
 
  'Button
  btnImport.Location = New Point(41, 404)
  btnImport.Size = New Size(280, 23)
  btnImport.Text = "Load Excel to DataGrid"
  AddHandler btnImport.Click, AddressOf Me.btnImport_Click
 
  'Label
  label.Location = New Point(0, 50)
  label.Size = New Size(426, 48)
  label.Text = "Click the button to load Excel spreadsheet to DataGrid through Essential XlsIO."
  label.TextAlign = ContentAlignment.MiddleCenter
 
  'DataGrid
  dataGrid.Location = New Point(29, 96)
  dataGrid.Size = New Size(312, 292)
 
  'Excel to DataGrid
  ClientSize = New Size(425, 434)
  Controls.Add(dataGrid)
  Controls.Add(label)
  Controls.Add(btnImport)
  Text = "Load DataGrid"
End Sub

Step 6: Data in the Excel worksheet can be exported to a DataTable using the ExportDataTable() method. This data table can be assigned as source to data grid. Add the below complete code in the button click event in Form1.cs file to export data from Excel worksheet to DataGrid.

// Initialize the Excel Engine
using (ExcelEngine excelEngine = new ExcelEngine())
{
  // Initialize Application
  IApplication application = excelEngine.Excel;
 
  // Set default version for application.
  application.DefaultVersion = ExcelVersion.Xlsx;
 
  // Open existing workbook with data entered
  Assembly assembly = typeof(Form1).GetTypeInfo().Assembly;
  Stream fileStream = assembly.GetManifestResourceStream("ExceltoDataGrid.Sample.xlsx");
  IWorkbook workbook = application.Workbooks.Open(fileStream);
 
  // Accessing the first worksheet in the workbook
  IWorksheet worksheet = workbook.Worksheets[0];
 
  // Export data from Excel worksheet.
  DataTable customersTable = worksheet.ExportDataTable(worksheet.UsedRange, ExcelExportDataTableOptions.ColumnNames);
 
  // Load the data to dataGrid
  dataGrid.DataSource = customersTable;
 
  // No exception will be thrown if there are unsaved workbooks.
  excelEngine.ThrowNotSavedOnDestroy = false;
}

VB.NET

'Initialize the Excel Engine
Using excelEngine As ExcelEngine = New ExcelEngine()
 
  'Initialize Application
  Dim application As IApplication = excelEngine.Excel
 
  'Set default version for application
  application.DefaultVersion = ExcelVersion.Xlsx
 
  'Open existing workbook with data entered
  Dim assembly As Assembly = GetType(Form1).GetTypeInfo.Assembly
  Dim fileStream As Stream = assembly.GetManifestResourceStream("ExceltoDataGrid.Sample.xlsx")
  Dim workbook As IWorkbook = application.Workbooks.Open(fileStream)
 
  'Accessing the first worksheet in the workbook
  Dim worksheet As IWorksheet = workbook.Worksheets(0)
 
  'Export data from Excel worksheet
  Dim customersTable As DataTable = worksheet.ExportDataTable(worksheet.UsedRange, ExcelExportDataTableOptions.ColumnNames)
 
  'Load the data to dataGrid
  DataGrid.DataSource = customersTable
 
  'No exception will be thrown if there are unsaved workbooks.
  excelEngine.ThrowNotSavedOnDestroy = False
 
End Using

Note:

The input Excel document (Sample.xlsx) should be added in the project and made an Embedded Resource in the Build Action.

Input file as Embedded Resource in .NET Excel library

Input file as Embedded Resource

A complete working example of how to load data from Excel worksheet to DataGrid in C# can be downloaded from Excel to DataGrid.zip.

By executing the program, you will get the DataGrid loaded as below.

Excel loaded to DataGrid in .NET Excel library

Load Excel to DataGrid

Refer here to explore the rich set of Syncfusion Excel (XlsIO) library features.

Excel to DataGrid or DataGridView in C#.

Steps to load data from Excel to DataGrid or DataGridView, programmatically:

See Also:

Access denied