MVC Listbox without ListItems

c# asp.net-mvc-4 listbox selectlistitem
DAK picture DAK · Jun 17, 2013 · Viewed 10.2k times · Source

I'm trying to show 2 listboxes one with all the possible choices & other will populate as users select their choices but for some reason I can't add an empty listbox.

Here is the code:

@Html.ListBox("somename")

& my error is: There is no ViewData item of type 'IEnumerable' that has the key 'somename'.

It I replace the above line of code with the following then it works fine but I want an empty listbox:

@Html.ListBox("somename", liMyList)

where liMyList is SelectListItem.

is it possible to have an empty listbox in MVC? Please help

Answer

Andrei picture Andrei · Jun 17, 2013

One option is just a pure HTML:

<select name="somename" multiple="multiple">
</select>

Another is to supply an empty list of items:

@Html.ListBox("somename", new List<SelectListItem>())

Related questions

ASP.NET MVC get textbox input value

I have a textbox input and some radio buttons. For example my textbox input HTML looks like that: <input type="text" name="IP" id="IP" /> Once user clicks a button on a web page I want to pass …

Read More
How To Accept a File POST

I'm using asp.net mvc 4 webapi beta to build a rest service. I need to be able to accept POSTed images/files from client applications. Is this possible using the webapi? Below is how action I am currently using. Does …

Read More
Populating a razor dropdownlist from a List<object> in MVC

I have a model: public class DbUserRole { public int UserRoleId { get; set; } public string UserRole { get; set; } } public class DbUserRoles { public List<DbUserRole> GetRoles() { BugnetReports RoleDropDown = new BugnetReports(); List<DbUserRole> Roles = new List<DbUserRole>(); …

Read More