This tutorial explains the process to convert Excel chart to image using C# REST API. You will learn to automatically transform an Excel chart to image using C# .NET-based API through a .NET-based Cloud SDK. It will assist you in creating output images in multiple formats as per your requirements.
Prerequisite
- Create an account and get API credentials for converting charts to image
- Download Aspose.Cells Cloud SDK for Dotnet to create graph picture
- Setup C# project with the above SDK
Steps to Convert Excel Chart to High Resolution Image using C# RESTful Service
- Define the client ID, client secret, and API base URL required to authenticate with the Aspose.Cells Cloud service
- Instantiate the CellsApi class using the provided credentials and API URL to prepare for sending requests to Aspose services
- Set the path of the Excel file that contains the chart to be converted
- Prepare a request to upload the local Excel file to Aspose Cloud’s storage and execute it
- Create a request specifying the file name, worksheet name, chart index, output image format, and storage location
- Call the GetWorksheetChart() API to extract the specified chart from the worksheet and return it as an image stream in the desired format
- Write the image stream to a local file, saving the chart as a PNG image
These steps summarize the process of creating images for charts using C# REST Interfaces. The program authenticates with Aspose.Cells Cloud, uploads an Excel file and requests the export of a specific chart from a worksheet as a PNG image. It then saves the resulting image stream to a local file while handling any potential errors during the process.
Code to Convert Excel Graph to Image using C# Low Code API
This code demonstrates the process of generating chart image using C# RESTful Service. You can convert the chart to other formats such as TIFF, JPEG, GIF, EMF, and BMP. You may use the sheet name and 0-based index of the chart to render it as an image.
This article has taught us the process to render Excel charts. To create a bar chart in Excel, refer to the article Create Bar chart in Excel using C# REST API.
