Javascript 如何启用禁用的文本字段？
声明：本页面是StackOverFlow热门问题的中英对照翻译，遵循CC BY-SA 4.0协议，如果您需要使用它，必须同样遵循CC BY-SA许可，注明原文地址和作者信息，同时你必须将它归于原作者（不是我）：StackOverFlow
原文地址: http://stackoverflow.com/questions/8484181/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
How to enable a disabled text field?
提问by Hassan Z
I wanna know how do I enable a disabled form text field on submit. Also I wanna make sure if user goes back to form or click reset field will show again as disabled.
我想知道如何在提交时启用禁用的表单文本字段。此外，我想确保用户返回表单或单击重置字段将再次显示为禁用状态。
I tried to use
我试着用
document.pizza.field07.disabled = false ;
It does disables the field, by clicking reset or hitting back button still keeps it enable.
它确实禁用了该字段，通过单击重置或回击按钮仍然保持启用状态。
Please guide.
请指导。
回答by Adam Rackis
To access this element in a more standard way, use document.getElementByIdwith setAttribute
要以更标准的方式访问此元素，请使用document.getElementById和setAttribute
document.getElementById("field07").setAttribute("disabled", false);
EDIT
编辑
Based on your comment, it looks like field07 is a name, not an id. As such, this should be what you want:
根据您的评论，看起来 field07 是name，而不是 id 。因此，这应该是您想要的：
var allfield7s = document.getElementsByName("field07");
for (var i = 0; i < allfield7s.length; i++)
allfield7s[i].setAttribute("disabled", false);
回答by zajc3w
That is the only working solution for Me:
这是我唯一可行的解决方案：
var allfield7s = document.getElementsByName("field07");
for (var i = 0; i < allfield7s.length; i++)
allfield7s[i].removeAttribute("disabled");
回答by Bins Jose
You can enable a disabled html control with the following JavaScript code.
您可以使用以下 JavaScript 代码启用禁用的 html 控件。
document.getElementById('elementId').removeAttribute('disabled');
document.getElementById('elementId').removeAttribute('disabled');
回答by Purag
You can also do this with jQuery:
你也可以用jQuery做到这一点：
$(function(){
$("[name='field07']").prop("disabled", false);
});
We simply select all the elements where the nameattribute is field07(using name because you said so in the comments of @AdamRackis's answer) and set its disabledproperty to false.
我们只需选择name属性所在的所有元素field07（使用名称，因为您在@AdamRackis 的回答的评论中是这么说的）并将其disabled属性设置为false.
More about prop().
更多关于prop().
