How to: Save a Cell Range as an Image

• Sep 19, 2023
• 2 minutes to read

Call the CellRangeExtensions.ExportToImage extension method for a CellRange object to save a cell range as an image. Pass an ImageFileFormat enumeration member to this method to specify the output image format.

Important

The CellRangeExtensions class is defined in the DevExpress.Docs.v24.2.dll assembly. Add this assembly to your project to use cell range extensions. You need a license for the DevExpress Office File API Subscription or DevExpress Universal Subscription to use this assembly in production code.

The following code snippet demonstrates how to export a cell range as an image:

C#

using DevExpress.Spreadsheet;
// ...

using (Workbook workbook = new Workbook())
{
    workbook.LoadDocument("InvestmentPortfolio.xlsx", DocumentFormat.Xlsx);
    Worksheet worksheet = workbook.Worksheets.ActiveWorksheet;
    worksheet.Range["B1:I25"].ExportToImage("RangeImage.png", ImageFileFormat.Png);
}

VB.NET

Imports DevExpress.Spreadsheet
' ...

Using workbook As New Workbook()
    workbook.LoadDocument("InvestmentPortfolio.xlsx", DocumentFormat.Xlsx)
    Dim worksheet As Worksheet = workbook.Worksheets.ActiveWorksheet
    worksheet.Range("B1:I25").ExportToImage("RangeImage.png", ImageFileFormat.Png)
End Using

Customize Export Settings

Create a RangeImageOptions class instance and pass it to the CellRange.ExportToImage method to specify export options. The following options are available:

RangeImageOptions Property	Description
Resolution	Defines the image resolution (in DPI).
Scale	Specifies how to scale worksheet content before it is exported to an image.
BackgroundColor	Allows you to fill the image background with a color.
ExportHeadings	Specifies whether to include row and column headings in the output image.
ExportDrawingObjects	Specifies whether to include drawing objects (charts, shapes, and pictures) in the output image.
ExportGridlines	Specifies whether to include cell gridlines in the output image.
GridlineColor	Defines the gridline color.
BlackAndWhite	Allows you to save a cell range as a black and white image.

The following example demonstrates how to save a cell range as an image and define export options to create the following image:

C#

using DevExpress.Spreadsheet;
using System.Drawing;
// ...

using (Workbook workbook = new Workbook())
{
    workbook.LoadDocument("InvestmentPortfolio.xlsx", DocumentFormat.Xlsx);
    Worksheet worksheet = workbook.Worksheets.ActiveWorksheet;
    var exportOptions = new RangeImageOptions
    {
        Resolution = 192,
        ExportHeadings = true,
        ExportGridlines = true,
        GridlineColor = Color.Gray,
        BackgroundColor = Color.FromArgb(0xF2, 0xF2, 0xF2)
    };
    worksheet.Range["B1:I25"].ExportToImage("RangeImage.png", ImageFileFormat.Png, exportOptions);
}

VB.NET

Imports DevExpress.Spreadsheet
Imports System.Drawing
' ...

Using workbook As New Workbook()
    workbook.LoadDocument("InvestmentPortfolio.xlsx", DocumentFormat.Xlsx)
    Dim worksheet As Worksheet = workbook.Worksheets.ActiveWorksheet
    Dim exportOptions As New RangeImageOptions With {
        .Resolution = 192,
        .ExportHeadings = True,
        .ExportGridlines = True,
        .GridlineColor = Color.Gray,
        .BackgroundColor = Color.FromArgb(&HF2, &HF2, &HF2)
    }
    worksheet.Range("B1:I25").ExportToImage("RangeImage.png", ImageFileFormat.Png, exportOptions)
End Using