Question

I’m trying to create a dynamic CheckBoxFor where some items are disabled.

This is disabling everything:

@Html.CheckBoxFor(m=>m.Checked, new { @disabled = "disabled"})

I was trying to create something like this without success:

@Html.CheckBoxFor(m=>m.Checked, new{ @disabled = @(Model.Disable ? "disabled" : "")})

One note, my Model has a property called Disabled and another Checked.

Answer 1

It’s not working because the disabled attribute disables a CheckBox regardless of what it’s value is.

I’m not sure how to do this in one line, but here’s one solution:

@if(Model.Disabled)
{ 
    @Html.CheckBoxFor(m=>m.Checked, new { @disabled = "disabled"})
}
else
{
    @Html.CheckBoxFor(m=>m.Checked)
}

A potential Html Helper Extension:

public static MvcHtmlString CheckBoxFor<TModel>(
        this HtmlHelper<TModel> helper,
        Expression<Func<TModel, bool>> expression,
        object htmlAttributes,
        bool isDisabled)
{
    var dic = htmlAttributes.GetType()
             .GetProperties()
             .ToDictionary(p => p.Name, p => p.GetValue(htmlAttributes, null));

    if (isDisabled)
        dic["disabled"] = "disabled";

    return helper.CheckBoxFor(expression, dic);
}