MVC绑定/后布尔值RADIOBUTTON [英] mvc bind/post boolean to radiobutton

问题描述

我在我的模型NULLABLE一个布尔值的列。现在，在我的视图（编辑），我想将绑定两个单选按钮：是和放大器;否。如果值为null，则只是有两个单选按钮取消检查。我怎么会去这样做呢？

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 just have the two radiobutton un-checked. How would I go to do that?

感谢。

推荐答案

一旦你选择了一个单选按钮，真的没有办法取消选择它（作为一个用户）。我建议，如果你真的需要一个三值的结果，你有三个单选按钮 - 是的，不，不关心

Once you have selected a radio button, there's really no way to unselect it (as a user). I'd suggest that if you really need a three-valued result, that you have three radio buttons -- Yes, No, Don't care.

<%= Html.LabelFor( m => m.Foo ) %>
<%= Html.RadioButtonFor( m => m.Foo, "true" ) %> Yes
<%= Html.RadioButtonFor( m => m.Foo, "false" ) %> No
<%= Html.RadioButtonFor( m => m.Foo, string.Empty ) %> Don't Care
<%= Html.ValidationMessageFor( m => m.Foo ) %>

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