Deselect everything from the ListBox in Edit View

Question

User657329123 posted

Hi there,

I have a multi-select list box like this.

@Html.ListBoxFor(model => model.Subjects, (MultiSelectList)ViewBag.Sub, new { @multiple = "multiple", @class = "form-control" })

Initially nothing is selected from the list;  then user selects something from the list and it is saved in the database. When user tries to Edit there is no option to deselect everything from the list. How do I let user deselect everything from the list?

Joe

Answer 1

User475983607 posted

You must set selected item(s) in the ViewBag.Sub.  Where is the code that selects items?

https://stackoverflow.com/questions/21826280/selectedvalues-not-working-in-multiselectlist-mvc

When user tries to Edit there is no option to deselect everything from the list. How do I let user deselect everything from the list?

Just click the item to remove the selection.  Can you provide code that reproduces this issue?

Answer 2

User657329123 posted

Just found it since it is multi select list box, user can deselect items from list box by clicking Ctrl key.

Answer 3

User1520731567 posted

Hi joegreen2005,

Just found it since it is multi select list box, user can deselect items from list box by clicking Ctrl key.

I'm glad that you have solved the issue by yourself.

For user-friendliness,I suggest you could add some tips to let users know how to deselect.

And  you could also mark the right reply as answer.

This will help other people who faces the same issue.

Thank you very much.

Best Regards.

Yuki Tao