如何使用数字作为名称访问表单元素 [英] how to access form elements with numbers as names
问题描述
我继承了一些代码，其中包含一些表单元素（单选按钮）
，称为1，2 ;等等
例如：
< input name =" 2"类型= QUOT;无线电" value =" 45">
< input name =" 2"类型= QUOT;无线电" value =" 46">
我希望能够通过javascript访问它们来禁用它们;
forms.myform.2 [0] .disabled = true;
等
但是当我尝试这样做时出现javascript错误（关于
缺少分号）。
我的javascript技能很好，我有其他元素被禁用OK，
所以我认为这是元素的方式有问题
命名。
不幸的是我没有重命名元素的选项。有没有
另一种访问这些元素的方法？
我试过了：
var temp = forms.myform.2;
temp [0] .disabled = true;
但是我在var temp = ...上得到了相同的分号错误。 line
任何想法都赞赏！
干杯，
Ben
Hi,
I have inherited some code that has some form elements (radio buttons)
that are called "1", "2" etc.
for example:
<input name="2" type="radio" value="45">
<input name="2" type="radio" value="46">
I want to be able to access them through javascript to disable them;
forms.myform.2[0].disabled=true;
etc.
however I get a javascript error when I try to do this (something about a
missing semicolon).
My javascript skills are fine and I have other elements being disabled OK,
so I assume that this is a problem with the way that the elements were
named.
Unfortunately I don''t have the option of renaming the elements. Is there
another way to access these elements?
I have tried:
var temp=forms.myform.2;
temp[0].disabled=true;
But I get the same missing semicolon error on the "var temp=..." line
Any thoughts appreciated!
Cheers,
Ben
推荐答案
Jon Hoowes写道：
Jon Hoowes wrote:
我继承了一些有某种形式的代码元素（单选按钮）
被称为1，2和2。等等
例如：
< input name =" 2"类型= QUOT;无线电" value =" 45">
< input name =" 2"类型= QUOT;无线电" value =" 46">
我希望能够通过javascript访问它们来禁用它们;
forms.myform.2 [0] .disabled = true ;
然而，当我尝试这样做时，我得到一个javascript错误（关于
缺少分号的东西）。
我的javascript技能很好，我有其他元素被禁用OK，
所以我认为这是元素被命名的方式的问题。
不幸的是我没有选择重命名元素。是否有其他方式来访问这些元素？
我试过：
var temp = forms.myform.2;
temp [0] .disabled = true ;
但是我在var temp = ...上得到了相同的缺失分号错误。线路
任何想法都赞赏！
欢呼，
本
Hi,
I have inherited some code that has some form elements (radio buttons)
that are called "1", "2" etc.
for example:
<input name="2" type="radio" value="45">
<input name="2" type="radio" value="46">
I want to be able to access them through javascript to disable them;
forms.myform.2[0].disabled=true;
etc.
however I get a javascript error when I try to do this (something about a
missing semicolon).
My javascript skills are fine and I have other elements being disabled OK,
so I assume that this is a problem with the way that the elements were
named.
Unfortunately I don''t have the option of renaming the elements. Is there
another way to access these elements?
I have tried:
var temp=forms.myform.2;
temp[0].disabled=true;
But I get the same missing semicolon error on the "var temp=..." line
Any thoughts appreciated!
Cheers,
Ben
嗨Ben ，
也许stringnotation有帮助吗？ （不确定）
var temp = forms.myform [" 2"];
temp [0] .disabled = true;
如果没有，请尝试使用alert进行调试。
赞：
var temp = forms.myform [" 2"];
alert（tmp）;
temp [0] .disabled = true;
是指向无线电对象的tmp吗？ br />
是的：奇怪的设计可以为你的元素命名。 ： - /
问候，
Erwin Moller
Hi Ben,
Maybe stringnotation helps? (not sure)
var temp=forms.myform["2"];
temp[0].disabled=true;
If not, try debugging by using alert.
Like:
var temp=forms.myform["2"];
alert (tmp);
temp[0].disabled=true;
is tmp pointing to a radio-object?
And yes: Strange design to name your elements like that. :-/
Regards,
Erwin Moller
嗨Ben，
也许stringnotation有帮助吗？ （不确定）
var temp = forms.myform [" 2"];
temp [0] .disabled = true;
如果没有，请尝试使用alert进行调试。
喜欢：
var temp = forms.myform [" 2"];
alert（tmp）;
temp [0] .disabled = true;
指向一个无线电对象？
是的：奇怪的设计可以为你的元素命名。 ： - /
问候，
Erwin Moller
Hi Ben,
Maybe stringnotation helps? (not sure)
var temp=forms.myform["2"];
temp[0].disabled=true;
If not, try debugging by using alert.
Like:
var temp=forms.myform["2"];
alert (tmp);
temp[0].disabled=true;
is tmp pointing to a radio-object?
And yes: Strange design to name your elements like that. :-/
Regards,
Erwin Moller
还有一件事，我在使用元素之前总是使用文档。 />
所以：
var temp = document.forms.myform [" 2"];
问候，
Erwin Moller
One more thing, I always use document too before adressing elements.
So:
var temp=document.forms.myform["2"];
Regards,
Erwin Moller
也许字符串有用吗？ （不确定）
var temp = forms.myform [" 2"];
temp [0] .disabled = true;
这样可行，但不允许我通过他们的名称来访问元素
和是：奇怪的设计将你的元素命名为那。 ： - /
Maybe stringnotation helps? (not sure)
var temp=forms.myform["2"];
temp[0].disabled=true;
This works, but doesn''t allow me to access the elements by their "name"
And yes: Strange design to name your elements like that. :-/
这是一个基于数据库信息构建表单的系统。
主键是一个数字，它决定了元素的名称。
这也是你提出的建议不合适的原因 - 它有效，但是我
不能保证表格中每个元素的顺序:(
干杯无论如何！
乔恩
It''s a system that builds a form based on database information. The
primary key, which is a number, determines the name of the element.
This is also why the suggestion you made is not suitable - it works, but I
cannot guarantee the order of each element within the form :(
Cheers anyway!
Jon
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