框架生成的ID困境 [英] Framework-generated ID woes

问题描述

嗨


我的ASP.NET 2.0页面上有很多控件，有些实现了

INamingContainer，其他只是< asp：button> s等等。


永恒的哀叹：我需要在

客户端与这些控件进行交互，但当然我无法保证由框架生成的ID将是一致的（例如

" ctl00_ContentPlaceHolder_LoadPreviousButton"）。


有没有办法告诉框架你想要使用什么前缀

你的控件的ID？或者我是否必须在页面中注入一些包含ID的JavaScript

（我觉得这很难看）。如果是这样，

我如何获得控件的完全限定名称？


谢谢，Mark

Hi

I have lots of controls on my ASP.NET 2.0 page, some implementing
INamingContainer, others just <asp:button>s and so on.

The eternal lament: I need to interact with these controls on the
client-side, but of course I can''t guarantee that the IDs generated by
the Framework will be consistent (like
"ctl00_ContentPlaceHolder_LoadPreviousButton") .

Is there a way to tell the Framework what prefix you''d like to use for
your controls'' IDs? Or do I have to resort to injecting some JavaScript
containing the ID into the page (which is rather ugly I think). If so,
how do I actually get the fully-qualified name of the control?

Thanks, Mark

推荐答案

component.ClientID


:-)

喜欢：


document.getElementById（''<％= myLabel.ClientID％>''）。value =''test'';


- -


Bruno Alexandre

（葡萄牙人在K？benhanv，Danmark）

< ma ****** ****@gmail.com> escreveu na mensagem

news：11 ********************* @ y41g2000cwy.googlegro ups.com ...

component.ClientID

:-)

like:

document.getElementById( ''<%= myLabel.ClientID %>'' ).value = ''test'';

--

Bruno Alexandre
(a Portuguese in K?benhanv, Danmark)
<ma**********@gmail.com> escreveu na mensagem
news:11*********************@y41g2000cwy.googlegro ups.com...

嗨

我的ASP.NET 2.0页面上有很多控件，有些实现了INamingContainer，有些只是< asp：button> s等等。

永恒的哀叹：我需要在客户端与这些控件进行交互，但当然我不能保证框架生成的ID会保持一致（比如
" ctl00_ContentPlaceHolder_LoadPreviousButton"）。

有没有办法告诉框架你想用什么前缀来控制你的控件的ID？或者我是否必须在页面中注入一些包含ID的JavaScript（我觉得这很丑陋）。如果是这样，
如何获得控件的完全限定名称？

谢谢，Mark

Hi

I have lots of controls on my ASP.NET 2.0 page, some implementing
INamingContainer, others just <asp:button>s and so on.

The eternal lament: I need to interact with these controls on the
client-side, but of course I can''t guarantee that the IDs generated by
the Framework will be consistent (like
"ctl00_ContentPlaceHolder_LoadPreviousButton") .

Is there a way to tell the Framework what prefix you''d like to use for
your controls'' IDs? Or do I have to resort to injecting some JavaScript
containing the ID into the page (which is rather ugly I think). If so,
how do I actually get the fully-qualified name of the control?

Thanks, Mark

Darn it。无法指定ID前缀？似乎有危险的修改

这个ClientID属性（如果这甚至可能，看起来都没有......）


Mark


Bruno Alexandre写道：

Darn it. No way to specify the ID prefix? Seems dangerous to modify
this ClientID property (if that''s even possible, haven''t looked...)

Mark

Bruno Alexandre wrote:

component.ClientID

:-)

喜欢：

document.getElementById（''<％= myLabel.ClientID％>''）。value =''test'';

-

Bruno Alexandre
（葡萄牙人在K？benhanv，丹麦）

< ma ********** @ gmail.com> escreveu na mensagem
新闻：11 ********************* @ y41g2000cwy.googlegro ups.com ...

component.ClientID

:-)

like:

document.getElementById( ''<%= myLabel.ClientID %>'' ).value = ''test'';

--

Bruno Alexandre
(a Portuguese in K?benhanv, Danmark)
<ma**********@gmail.com> escreveu na mensagem
news:11*********************@y41g2000cwy.googlegro ups.com...

你好

我的ASP.NET 2.0页面上有很多控件，有些实现了INamingContainer，有些只是< asp：button> s等等。

永恒的哀叹：我需要在客户端与这些控件进行交互，但当然我不能保证框架生成的ID是一致的（比如
） " ctl00_ContentPlaceHolder_LoadPreviousButton"）。

有没有办法告诉框架你想用什么前缀来控制你的控件的ID？或者我是否必须在页面中注入一些包含ID的JavaScript（我觉得这很丑陋）。如果是这样，
如何获得控件的完全限定名称？

谢谢，Mark

Hi

I have lots of controls on my ASP.NET 2.0 page, some implementing
INamingContainer, others just <asp:button>s and so on.

The eternal lament: I need to interact with these controls on the
client-side, but of course I can''t guarantee that the IDs generated by
the Framework will be consistent (like
"ctl00_ContentPlaceHolder_LoadPreviousButton") .

Is there a way to tell the Framework what prefix you''d like to use for
your controls'' IDs? Or do I have to resort to injecting some JavaScript
containing the ID into the page (which is rather ugly I think). If so,
how do I actually get the fully-qualified name of the control?

Thanks, Mark

with


document.getElementById（''<％= myLabel.ClientID％>''）。value =''test'';


你没有修改任何东西！只需读取指定

标签的ClientID。

页面上面的代码将呈现为：


document.getElementById （''ctl00_mainCHolder_myLabel''）。value =''test'';


如果你在名为mainCHolder的容器中有Label，想象一下你是否有
容器内的标签和向导组件...


所有你需要担心的是提升myLabel.ClientID


ClientID as你可以看到ReadOnly ....你什么都不能改变，我们只需要

来阅读它！


我真的不会知道你在哪里有改变它的想法！


-


Bruno Alexandre

（葡萄牙语在K？benhanv，Danmark）

< ma ********** @ gmail.com> escreveu na mensagem

新闻：11 ********************** @ p79g2000cwp.googlegr oups.com ......

Darn it。无法指定ID前缀？似乎有危险的修改

这个ClientID属性（如果这甚至可能，看起来都没有......）


Mark


Bruno Alexandre写道：

with

document.getElementById( ''<%= myLabel.ClientID %>'' ).value = ''test'';

you are not modifing anything!!! just READING the ClientID for the specified
tag.
in the page the code above will render as:

document.getElementById( ''ctl00_mainCHolder_myLabel'' ).value = ''test'';

if you have the Label in a container called mainCHolder, imagine if you have
the label inside a container and a wizard component...

all you need to worry is to mension myLabel.ClientID

ClientID as u can see is ReadOnly.... you can''t alter nothing, we just need
to read it!

I really don''t know where do you get the idea for change it!

--

Bruno Alexandre
(a Portuguese in K?benhanv, Danmark)
<ma**********@gmail.com> escreveu na mensagem
news:11**********************@p79g2000cwp.googlegr oups.com...
Darn it. No way to specify the ID prefix? Seems dangerous to modify
this ClientID property (if that''s even possible, haven''t looked...)

Mark

Bruno Alexandre wrote:

component.ClientID

:-)

喜欢：

document.getElementById（''<％= myLabel.ClientID％>''）。value =''test'';

-

Bruno Alexandre
（葡萄牙人在K？benhanv，丹麦）

< ma ********** @ gmail.com> escreveu na mensagem
新闻：11 ********************* @ y41g2000cwy.googlegro ups.com ...

component.ClientID

:-)

like:

document.getElementById( ''<%= myLabel.ClientID %>'' ).value = ''test'';

--

Bruno Alexandre
(a Portuguese in K?benhanv, Danmark)
<ma**********@gmail.com> escreveu na mensagem
news:11*********************@y41g2000cwy.googlegro ups.com...

你好

我的ASP.NET 2.0页面上有很多控件，有些实现了INamingContainer，有些只是< asp：button> s等等。

永恒的哀叹：我需要在客户端与这些控件进行交互，但当然我不能保证框架生成的ID是一致的（比如
） " ctl00_ContentPlaceHolder_LoadPreviousButton"）。

有没有办法告诉框架你想用什么前缀来控制你的控件的ID？或者我是否必须在页面中注入一些包含ID的JavaScript（我觉得这很丑陋）。如果是这样，
如何获得控件的完全限定名称？

谢谢，Mark

Hi

I have lots of controls on my ASP.NET 2.0 page, some implementing
INamingContainer, others just <asp:button>s and so on.

The eternal lament: I need to interact with these controls on the
client-side, but of course I can''t guarantee that the IDs generated by
the Framework will be consistent (like
"ctl00_ContentPlaceHolder_LoadPreviousButton") .

Is there a way to tell the Framework what prefix you''d like to use for
your controls'' IDs? Or do I have to resort to injecting some JavaScript
containing the ID into the page (which is rather ugly I think). If so,
how do I actually get the fully-qualified name of the control?

Thanks, Mark

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