如果禁用，即使seleced Html.CheckBox返回false [英] Html.CheckBox returns false if disabled, even if seleced

问题描述

但愿你一个简单的问题ASP.NET MVC大师：

Hopefully an easy question for you asp.net mvc gurus:

我有一个复选框，这样创建：

I have a checkbox, created like this:

<%=Html.CheckBox("MyCheckBox", true, new { disabled = "disabled"})%>

在我的行动我检查，像这样的值：

In my action I am checking the value like so:

bool isChecked = form["MyCheckBox"].Contains("true");

我希望这个返回true，因为它被选中。然而时生成隐藏的元素有一个错误的值：

I expect this to return true, as it is checked. However the hidden element that gets created has a false value:

<input checked="checked" disabled="disabled" id="MyCheckBox" name="MyCheckBox" type="checkbox" value="true" />
<input name="MyCheckBox" type="hidden" value="false" />

首先，有没有办法让的HtmlHelper表现得像我希望它应注意什么？或者是手动构建输入/创造我自己的辅助方法的唯一途径？ （不，这是一个大问题...）

First, is there a way to make the HtmlHelper behave as I expect it should? Or is manually constructing the input/creating my own helper method the only way? (not that this is a big deal...)

二，任何人都可以解释为什么复选框这样的行为，一些轻？我是不正确的假设，被选中应== true的残疾复选框？是否禁用状态语义的意思是假的？

Second, can anyone shed some light on why the checkboxes behave this way? Am I incorrect in assuming a disabled checkbox that is ticked should == true? Does a disabled state semantically mean false?

推荐答案

标记有禁用=禁用属性的输入字段的从不其值发送给服务器。如果要实现这一点，你可以使用只读=只读仍$ P $修改该值pvents的用户，但将现有的数值属性时，形式是提交。

An input field marked with the disabled="disabled" attribute NEVER sends its value to the server. If you want to achieve this you could use the readonly="readonly" attribute which still prevents the user from modifying the value but sends the existing value when the form is submitted.

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