问题描述
如何在ASP.NET应用程序中使用<label>
标记?我希望它是有效的,可访问的和可用的.
How can I use the <label>
tag within an ASP.NET application? I want it to be valid, accessible, and usable.
我了解最佳的HTML方式是这样的:
I understand the optimal HTML way is this:
<label for="Username">Username:</label>
<input type="text" id="Username" runat="server" />
但是,如果上面的代码在ASP.NET用户控件中,则输入ID将更改,这意味着标签的"for"属性无效.我可以将label标签设置为服务器控件,并在代码(Username.ClientID
)中设置其"for"属性,但是对于这种简单的事情来说似乎需要做很多工作.
But if the above code is in an ASP.NET user control, the input ID will change, meaning the label's "for" attribute is useless. I could make the label tag a server control and set its "for" attribute in the code (Username.ClientID
), but it seems like a lot of work for such a simple thing.
我也曾经看过这种HTML:
I've also seen this HTML used in the past:
<label>
<span>Username</span>
<input type="text" id="Username" runat="server" />
</label>
什么是正确的方法?
推荐答案
为此,我使用了<asp:Label ... AssociatedControlID="Username" ...>
控件.它们被渲染为<label>
标签,并适当地设置了for
属性.
I use <asp:Label ... AssociatedControlID="Username" ...>
controls for this. They get rendered as <label>
tags and set the for
attribute appropriately.
请注意,您还可以根据需要在Label控件中嵌套其他标签:
Note that you can also nest other tags within the Label control if you wish:
<asp:Label ID="UsernameLabel"
Text="Username:"
AssociatedControlID="UsernameTextBox"
runat="server">
<asp:TextBox ID="UsernameTextBox" runat="server" />
</asp:Label>
这篇关于如何使用< label>在ASP.NET中标记?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!