Set Background for Excel Worksheet

8 Dec 20233 minutes to read

Adding a picture to the background either as a watermark of company’s logo or a relevant image will improve the appearance of the document. When you set background picture to a worksheet, the picture is tiled so that it fills the whole screen over and again.

The following code shows how to set Excel worksheet background image with Interop and XlsIO for .NET. The process will assume that you already have the picture on your computer to use as a background image.

Interop

C#

private void SetWorksheetBackground()
{
  //Instantiate the application object
  var excelApp = new Microsoft.Office.Interop.Excel.Application();

  //Add a workbook
  Workbook workbook = excelApp.Workbooks.Add(System.Reflection.Missing.Value);

  //Get the first sheet
  Worksheet worksheet = (Worksheet)workbook.Sheets["Sheet1"];

  //Set a background picture for the sheet
  worksheet.SetBackgroundPicture("Syncfusion.png");

  //Save the Excel file
  workbook.SaveCopyAs("InteropOutput_BackgroundPicture.xlsx");

  //Quit the application
  excelApp.Quit();
}

VB.NET

Private Sub SetWorksheetBackground()
  'Instantiate the application object
  Dim excelApp = New Microsoft.Office.Interop.Excel.Application()

  'Add a workbook
  Dim workbook As Workbook = excelApp.Workbooks.Add(System.Reflection.Missing.Value)

  'Get the first sheet
  Dim worksheet As Worksheet = workbook.Sheets("Sheet1")

  'Set a background picture for the sheet
  worksheet.SetBackgroundPicture("Syncfusion.png")

  'Save the file
  workbook.SaveCopyAs("InteropOutput_BackgroundPicture.xlsx")

  'Quit the application
  excelApp.Quit()
End Sub

XlsIO

C#

private void SetWorksheetBackground()
{
  using (ExcelEngine excelEngine = new ExcelEngine())
  {
    //Instantiate the application object
    IApplication application = excelEngine.Excel;

    //Create a workbook
    IWorkbook workbook = application.Workbooks.Create(1);

    //Get the first sheet
    IWorksheet worksheet = workbook.Worksheets[0];

    //Set a background picture for the sheet
    worksheet.PageSetup.BackgoundImage = new Bitmap("Syncfusion.png");

    //Save the workbook
    workbook.SaveAs("XlsIOOutput_BackgroundPicture.xlsx");
  }
}

VB.NET

Private Sub SetWorksheetBackground()
  Using excelEngine As ExcelEngine = New ExcelEngine()
    'Instantiate the application object
    Dim application As IApplication = excelEngine.Excel

    'Create a workbook
    Dim workbook As IWorkbook = application.Workbooks.Create(1)

    'Get the first sheet
    Dim worksheet As IWorksheet = workbook.Worksheets(0)

    'Set a background picture for the sheet
    worksheet.PageSetup.BackgoundImage = New Bitmap("Syncfusion.png")

    'Save as Excel file
    workbook.SaveAs("XlsIOOutput_BackgroundPicture.xlsx")
  End Using
End Sub