Pass image from controller and display in a view using ViewBag in ASP.NET MVC 3

Question

I guess it's something very straight forward but I can't find out how to do it. In my controller I have:

 public ViewResult ShowForm()
        {
            ViewBag.Title = Resources.ApplicationTitle;
            ViewBag.LabelStatus = Resources.Status;
            //Logo
            ViewBag.Logo =@"C:\Images\Logo.png";
            return View("ShowForm");
        }

And in my view I try this:

<div id="drawForm">
<img src="@ViewBag.Logo" alt="Logo" />    
</div>

However when I run this I just get the "Logo" text.

Adao

So, is it during the page load or some on demand request to server ? – Balmacaan

The image most probably will be kept on a Server, but the page content should be collected from the database before the page is loaded so I guess it is during page load. – Adao

It's a form with images that someone has already created and I just have to redraw it when the user asks for it. – Adao

Answer 1

Use Server.MapPath to get the correct path of the image. Suppose your images folder is inside the Content folder that is normally included in an MVC project. You can do something like this:

public ViewResult ShowForm()
{
    //Logo
    ViewBag.Logo = Server.MapPath("~") + @"Content\Images\Logo.png";
    return View("ShowForm");
}

And you don't have to change the code in your view.

Mong

I see. Was expecting something a bit easier but guess it is what it is. Thanks – Adao

You're welcome. That's the easiest way of doing it, IMO, and solves your sort of problem generally. But there is a much better way of doing it that involves a bit of setup, using image resizer tools. Tools that will make sure your images are served in the most efficient way. – Mong

Answer 2

Try this:

ViewBag.Logo = Url.Content("~/Content/Images/Logo.png");

Guadalupeguadeloupe

I share your codes on my blog: zinzinzibidi.com/blog/genel/… Thanks a lot!!! – Spermatophyte

Answer 3

You need a ImageController to render that.

See this:

ASP.NET MVC3: Image loading through controller

and this: Can an ASP.NET MVC controller return an Image?

once you have a controller you can render as follows:

public class ImageController{

public ActionResult ShowImage(string path) 
{

    return File(path);
}

}

in your views:

<img src="@Url.Action("Render","Image", new {id =1  // or path })" />

Yachting

Answer 4

public ActionResult ShowForm()
        {
            ViewBag.Title = Resources.ApplicationTitle;
            ViewBag.LabelStatus = Resources.Status;
            //Logo
           byte[] imgbytes =  File.ReadAllBytes(@"C:\Images\Logo.png");
           return File(imgbytes , "image/png");
        }

<div id="drawForm">
<img src="controllerName/ShowForm" alt="Logo" />    
</div>

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