ASP.NET Core
A set of technologies in the .NET Framework for building web applications and XML web services.
4,400 questions
How to load images initially into a view
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(278.4, 94%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EC%3C/text%3E%3C/svg%3E)
Coreysan
1,651
Reputation points
I have an MVC Core project, where I'm working on a page for editing product inventory for an online store.
I have everything done for CRUD operations.
But I don't know how to load images initially. I know in classic ASP.net I use isPostBack. but for MVC Core, what is the best way to do that kind of thing?
In other words, when I click "EDIT" a product, I'd like the page to render with all the images and thumbnails first, and then I can do CRUD operations.
Any tips, or principles I can research?
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SurferOnWww 2,491 Reputation points2024-07-19T03:55:28.72+00:00 Where do the "all the images and thumbnails" come from? In the wwwroot folder of your project? In database? In file server? Why don't you simply add img tag to the view of edit page and set url of image to src attribute?
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AgaveJoe 27,696 Reputation points2024-07-19T12:07:02.37+00:00 But I don't know how to load images initially. I know in classic ASP.net I use isPostBack. but for MVC Core, what is the best way to do that kind of thing?
Web Forms comes with built-in state management called ViewState. The Page.IsPostBack property is used in a common Web Forms coding pattern to determine of the request is a post back where server control values are cached in ViewState or the request is the initial page load where ViewState is empty.
The equivalent in MVC are the [HttpGet] and [HttpPost] attributes. These methods are used to route the request to the a controller action by the HTTP method. However, MVC does not come with built-in state management like Web Forms.
In other words, when I click "EDIT" a product, I'd like the page to render with all the images and thumbnails first, and then I can do CRUD operations.
It is not clear why you are having trouble displaying images. Can you explain or share code that highlights the issue?
Any tips, or principles I can research?
HTTP Get and Post are a major concept in MVC routing. Any beginning level MVC tutorial will cover [HttpGet] and [HttpPost] including the tutorials on this site.
https://learn.microsoft.com/en-us/aspnet/core/data/ef-mvc/?view=aspnetcore-8.0
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