CODEWITHSUNDEEP
c#asp.net-mvc
WellThisIsAkward
WellThisIsAkward

Reputation: 51

Displaying images Object reference not set to an instance of an object

Hi everyone I am trying to display all the images I have in a folder and I get this error nullreference exception Additional information: Object reference not set to an instance of an object." when it gets to Model.Images, i put a break point on the foreach line and the model is empty even though there is images in the folder, any idea how to fix this?

Thanks for any help with this issue.

controller

 public ActionResult Getimages()
    {
        var model = new imagesModel()
        {
            Images = Directory.EnumerateFiles(Server.MapPath("~/Img"))
                              .Select(fn => "~/Img" + Path.GetFileName(fn))
        };
        return View(model);
    }

model

 public class imagesModel
{
    public IEnumerable<string> Images { get; set; }
}

View

@model MyProject.Models.imagesModel

@foreach (var image in Model.Images)
{
<img src = "@Url.Content(image)" alt = "image" />
}

Upvotes: 0

Views: 1863

Answers (4)

Adam Shakhabov
Adam Shakhabov

Reputation: 1356

You just forgot to insert / in path.

Insert 

Images = Directory.EnumerateFiles(Server.MapPath("~/Img"))
                  .Select(fn => "~/Img/" + Path.GetFileName(fn))

in place of

Images = Directory.EnumerateFiles(Server.MapPath("~/Img"))
                  .Select(fn => "~/Img" + Path.GetFileName(fn))

And I have Img folder in here:

enter image description here

Upvotes: 0

Anirudha Gupta
Anirudha Gupta

Reputation: 9299

Are you referring the images from App_data folder. well, it will not work because HttpRequest doesn't goes inside the App_data folder. it's restricted folder.

Unable to access images stored inside my App_Data folder

Make sure your app_data does have some images. maybe its' have no images that's why it's not working.

Upvotes: 0

Assaf Our
Assaf Our

Reputation: 639

i think you need to ass ToLost(); So 1. return View(model).ToList(); Or 2. 

    Images = Directory.EnumerateFiles(Server.MapPath("~/App_Data"))
                                  .Select(fn => "~/App_Data" + 

Path.GetFileName(fn).ToList();

Upvotes: 0

hyankov
hyankov

Reputation: 4130

@model MyProject.Models.imagesModel



@foreach (var image in Model.Images)
{
<img src = "@Url.Content(image)" alt = "image" />
}

Upvotes: 1

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