mvc bind/post boolean to radiobutton

Question

I have a column in my Model with a NULLABLE boolean value. Now on my View (for editing), I would like to bind that to two radiobuttons: Yes & No. If the value is null, then

Answer 1

This is a razor solution to the problem. This is a very old ASP question.

The problem is that you need to set the checked attribute because the Html.RadioButtonFor does not check a radio button based on a nullable bool (which appears to be a flaw).

Also by putting the radio buttons inside of the label tag, you can select value by clicking the label.

Shared/EditorTemplates/Boolean.cshtml

@model bool?

    n/a
    @Html.RadioButtonFor(x => x, "", !Model.HasValue ? new { @checked=true } : null) 


    Yes
    @Html.RadioButtonFor(x => x, true, Model.GetValueOrDefault() ? new { @checked = true } : null)


    No
    @Html.RadioButtonFor(x => x, false, Model.HasValue && !Model.Value ? new { @checked = true } : null)