使用jQuery突出显示（选择）文本框中的所有文本

Question

我有一个带有一些文本的输入文本框，onclick事件我想运行一个javascript函数来选择（突出显示）此框中的所有文本，我如何用jquery做到这一点？

Answer 1

No need for jQuery, this is simple with the DOM and works in all mainstream browsers:

input.onfocus = function() { this.select(); };

If you must do it with jQuery, there's very little difference:

$(input).focus(function() { this.select(); });

Answer 2

You may take a look at this article :

Let's assume that we have the following text input:

 <input type="text" id="txtInput" /> 

In most cases, we would want to have this feature available to all textboxes across our website, so we would create a function to handle this, and call it as needed. Calling this function with the expected argument will make execute the highlighting of the text.

 function selectAllText(textbox) { textbox.focus(); textbox.select(); } 

Assuming you are developing against DotNetNuke 5, or have jQuery already imported into your website, add the following jQuery to your site for each textbox. (If you have a lot of textboxes, we could do this differently, but that's for a different post.)

 jQuery('#txtInput').click(function() { selectAllText(jQuery(this)) }); 

Answer 3

You can do this:

$('input').click(function() {
 // the select() function on the DOM element will do what you want
 this.select();
});

Of course, then you can't click on the element to select an arbitrary point in the input, so it might be better to fire that event on focus instead of click

Quick Demo w/ click or w/ focus

Answer 4

这对我来说效果最好。

$('myTextbox').select();

Answer 5

I know this isn't jquery, but for completeness of the answers to this question, you can use this on the text input itself:

 onclick="this.select();"

For example:

<input type="text" value="abc" onclick="this.select();"/>

Answer 6

Where I typically do this is in

$(document).ready(function () {
    $('#myTextBox').focus();
    $('#myTextBox').select();
}

for the first textbox that I want filled in. That way if I'm preserving state; and if the user backtracks to the page then it automatically highlights it all for typeover.

Useful technique for things like search boxes...