Set Background Picture of a Worksheet in VSTO and Aspose.Cells

To apply a background image to a spreadsheet:

1. Create a workbook and access the sheet you want to apply a background image to.
2. Apply the background image.
3. Save the workbook.

The code samples that follow show how to do this first with VSTO, using either C# or Visual Basic, and then with Aspose.Cells for .NET, again using either C# or Visual Basic.

The code examples in this article create a worksheet with a repeating background image, like the one in the screentshot below.

A background has been set for the worksheet.

VSTO

 //Instantiate the Application object.

Excel.Application ExcelApp = Application;

//Add a Workbook.

Excel.Workbook objBook = ExcelApp.Workbooks.Add(System.Reflection.Missing.Value);

//Get the First sheet.

Excel.Worksheet objSheet = (Excel.Worksheet)objBook.Sheets["Sheet1"];

//Set a background picture for the sheet.

objSheet.SetBackgroundPicture("pic.jpeg");

//Save the excel file.

objBook.SaveCopyAs("BackgroundPicBook.xls");

//Quit the Application.

ExcelApp.Quit();

Aspose.Cells

 //Instantiate a new Workbook.

Workbook workbook = new Workbook();

//Get the first worksheet.

Worksheet sheet = workbook.Worksheets[0];

//Define a string variable to store the image path.

string ImageUrl = "pic.jpeg";

//Get the picture into the streams.

FileStream fs = File.OpenRead(ImageUrl);

//Define a byte array.

byte[] imageData = new Byte[fs.Length];

//Obtain the picture into the array of bytes from streams.

fs.Read(imageData, 0, imageData.Length);

//Close the stream.

fs.Close();

//Set the background image for the sheet.

sheet.SetBackground(imageData);

//Save the excel file.

workbook.Save("BackgroundPicBook.xls");

Download Sample Code

• Github
• Sourceforge
• Bitbucket