How should I return an Image from a controller action c# asp.net-mvc-2?

Question

I am building images from a byte[] like below.

public FileContentResult GetEmployeeImage(int empId)
{
   MemoryStream ms = new MemoryStream(byteArray);
   Image returnImage = Image.FromStream(ms);
   return returnImage;//How should i return this image to be consumed by javascript.
}

I want to return this image to the browser via a controller action method, so as it can be consumed by my javascript code and displayed in the browser. How should I do this?

SLaks · Accepted Answer · 2011-05-10 16:28:34Z

10

You don't need to create an image object; you just want to return the raw data.
The browser will read the raw data into an image.

return File(byteArray, "image/png");

Obviously, you need to pass the correct content type, depending on what image format is in the byte array.

edited May 10, 2011 at 16:28

answered May 10, 2011 at 16:12

SLaks

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6 Comments

shane87 Over a year ago

@Slaks: Thanks for your response. So how can i can consume this in javascript?

Nathan Taylor Over a year ago

Provide JavaScript the path to your action which returns the image and handle the result as you would any other image request.

Lee Gunn Over a year ago

Do you mean: return new FileContentResult(byteArray, "image/png");

shane87 Over a year ago

@Slaks: the return Content(byteArray, "image/png"); expected a string as first parameter. So I took Lee Gunn's advice from above and used return new FileContentResult(byteArray, "image/png") is this correct? @Nathan Taylor: Forgive me for being a bit dumb here, but can you provide a short example of what you mean?thanks

shane87 Over a year ago

@Nathan Taylor: Actually I have figured it out. Stupid me. I get what you mean now thanks.

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