How to return a SelectList fromatted

Question

User539757411 posted

Hi,

I am using ASP.NET MVC, and I need to list Events with a format like:
date - title

How do I do this on the controller?

Bellow is the normal code:

[Authorize]
        public ActionResult Create()
        {
            ViewBag.events_id = new SelectList(db.events, "id", "title");
            return View();
        }

Answer 1

User475983607 posted

The select list contains a list of options.  Each option has a value and text.  If you want to change the text then you need to create another object and populate that object with the expected format.

Otherwise post code that reproduces the issue.  Explain the expected results and the actual results.

Answer 2

User1520731567 posted

Hi xandeq,

I am using ASP.NET MVC, and I need to list Events with a format like:
date - title

Do you mean you want to show date and title in dropdownlist?

If so,you just code like:

ViewBag.events_id = new SelectList(db.events.ToList(), "date", "title");

You could see the format of SelectList:

public SelectList(IEnumerable items, string dataValueField, string dataTextField);

Just put ValueField name and TextField name on it.

How to render in view:

@Html.DropDownListFor(model => model.XXX, (IEnumerable<SelectListItem>)ViewBag.events_id , "---Select---", new { @class = "form-control" })

If I mistake your mean,please post more details.

Best Regards.

Yuki Tao

Answer 3

User1429838465 posted

I wrote a series about how to use SelectList (or dropdownlists) with ASP.NET MVC and I've touched on this topic as well.

https://www.danylkoweb.com/Blog/the-ultimate-guide-to-aspnet-mvc-dropdowns-JO

Hope this helps.

Answer 4

User-2054057000 posted

I recommend you to go through this tutorial on that covers binding of dropdownlist in MVC in many different ways.