Iformfile to byte array

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Convert iFormFile to byte array

In order to convert an iFormFile to a byte array in ASP.NET Core, you can make use of the CopyTo method provided by the iFormFile interface along with a MemoryStream. Here’s an example:

    
      public byte[] ConvertToByteArray(IFormFile file)
      {
          using (var memoryStream = new MemoryStream())
          {
              file.CopyTo(memoryStream);
              return memoryStream.ToArray();
          }
      }

In the above code snippet, we create a new MemoryStream object and pass it to the CopyTo method of the iFormFile. This method copies the content of the iFormFile to the memory stream. Finally, we convert the memory stream to a byte array using the ToArray method and return it.

To illustrate this with an example, consider a scenario where you have a form with a file input named “uploadedFile”. In your controller action, you can receive the file as an iFormFile parameter and call the ConvertToByteArray method to get the byte array representation of the file. 

    
      [HttpPost]
      public IActionResult UploadFile(IFormFile uploadedFile)
      {
          var byteArray = ConvertToByteArray(uploadedFile);
  
          // Do something with the byte array, for example, save it to the database or perform further processing
  
          return RedirectToAction("Index");
      }

In the above example, the UploadFile action receives the uploaded file as an iFormFile and calls the ConvertToByteArray method to convert it to a byte array. You can then perform any required operations with the byte array, such as saving it to the database or performing further processing as needed.

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