What is the standard way of writing readonly for INPUT tag in HTML? _html/css_WEB-ITnose

This post was last edited by frontlon on 2012-09-10 13:57:30

After testing:





will all take effect.


and even



can all take effect.



This seems to be effective as long as readonly exists.

But this way of writing is in





is not a standard way of writing, and the editor prompts a syntax error.



What is the correct way to write it in the W3C standard?

Reply to the discussion (solution)

Search more and try more and you will know.

readonly="true" or readonly="false" This is to set the read-only nature of the tag

XHTML is different from html. The commonly used writing method is readonly="true" or readonly

xhtml is more rigorous, the standard writing method is readonly="readonly" Refer to W3C

disabled="true" The text will turn gray and cannot be edited

readOnly="true" The text will not change color , also cannot be edited