Load a Web Image from a URL into an Excel Worksheet

Load an Image from a URL into an Excel Worksheet

Aspose.Cells for .NET API provides a simple and easy way to load images from URLs into Excel Worksheets. This article explains downloading the image data into a stream and then inserting it into the worksheet using the Aspose.Cells API. Using this method, the images becomes a part of the excel file and are not downloaded every time the worksheet is opened.

Sample Code

// For complete examples and data files, please go to https://github.com/aspose-cells/Aspose.Cells-for-.NET
// The path to the documents directory.
string dataDir = RunExamples.GetDataDir(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType);
// Define memory stream object
System.IO.MemoryStream objImage;

// Define web client object
System.Net.WebClient objwebClient;

// Define a string which will hold the web image url
string sURL = "http:// Www.aspose.com/Images/aspose-logo.jpg";

try
{
    // Instantiate the web client object
    objwebClient = new System.Net.WebClient();

    // Now, extract data into memory stream downloading the image data into the array of bytes
    objImage = new System.IO.MemoryStream(objwebClient.DownloadData(sURL));

    // Create a new workbook
    Aspose.Cells.Workbook wb = new Aspose.Cells.Workbook();

    // Get the first worksheet in the book
    Aspose.Cells.Worksheet sheet = wb.Worksheets[0];

    // Get the first worksheet pictures collection
    Aspose.Cells.Drawing.PictureCollection pictures = sheet.Pictures;

    // Insert the picture from the stream to B2 cell
    pictures.Add(1, 1, objImage);

    // Save the excel file
    wb.Save(dataDir+ "webimagebook.out.xlsx");
}
catch (Exception ex)
{
    // Write the error message on the console
    Console.WriteLine(ex.Message);
}

There might be cases where you always want the updated image from a URL. To achieve this, you may follow the instructions given in the Insert a Linked Picture from Web Address article. By following this method, the image is loaded from the URL each time the worksheet is opened.