HTML选项中的换行符？

Can I have a two line text in an html select option? How?

我可以在html选项中使用双行文本吗？怎么样？

8 个解决方案

#1

No, browsers don't provide this formatting option.

不，浏览器不提供此格式化选项。

You could probably fake it with some checkboxes with <label>s, and JS to turn it into a fly out menu.

你可以用一些带有的复选框和JS将它变成一个飞出菜单。

#2

I know this is an older post, but I'm leaving this for whomever else comes looking in the future.

我知道这是一篇较老的帖子，但是我将其留给未来的其他任何人。

You can't format line breaks into an option; however, you can use the title attibute to give a mouse-over tooltip to give the full info. Use a short descriptor in the option text and give the full skinny in the title.

您不能将换行符格式化为选项;但是，您可以使用标题attibute来提供鼠标悬停工具提示以提供完整信息。在选项文本中使用短描述符，并在标题中给出完整的skinny。

<option value="1" title="This is my lengthy explanation of what this selection really means, so since you only see 1 on the drop down list you really know that you're opting to elect me as King of Willywarts!  Always be sure to read the fine print!">1</option>

#3

A bit of a hack, but this gives the effect of a multi-line select, puts in a gray bgcolor for your multi line, and if you select any of the gray text, it selects the first of the grouping. Kinda clever I'd say :) The first option also shows how you can put a title tag in for an option as well.

有点破解，但这会产生多行选择的效果，为多行输入灰色bgcolor，如果选择任何灰色文本，它会选择第一个分组。有点聪明我会说:)第一个选项还显示了如何为标题添加标题。

 function SelectFirst(SelVal) {
   var arrSelVal = SelVal.split(",")
   if (arrSelVal.length > 1) {
     Valuetoselect = arrSelVal[0];
     document.getElementById("select1").value = Valuetoselect;
   }
 }

<select name="select1" id="select1" onchange="SelectFirst(this.value)">
  <option value="1" title="this is my long title for the yes option">Yes</option>
  <option value="2">No</option>
  <option value="2,1" style="background:#eeeeee">&nbsp;&nbsp;&nbsp;This is my description for the no option</option>
  <option value="2,2" style="background:#eeeeee">&nbsp;&nbsp;&nbsp;This is line 2 for the no option</option>
  <option value="3">Maybe</option>
  <option value="3,1" style="background:#eeeeee">&nbsp;&nbsp;&nbsp;This is my description for Maybe option</option>
  <option value="3,2" style="background:#eeeeee">&nbsp;&nbsp;&nbsp;This is line 2 for the Maybe option</option>
  <option value="3,3" style="background:#eeeeee">&nbsp;&nbsp;&nbsp;This is line 3 for the Maybe option</option>
</select>

#4

How about putting the long text in another <option> right below and disabling it? Might be a workaround for someone so posting here.

如何将长文本放在下面的另一个

        <select>
            <option>My real option text</option>
            <option disabled style="font-style:italic">&nbsp;&nbsp;&nbsp;(...and my really really long option text that is basically a continuation of previous option)</option> 
            <option disabled style="font-style:italic">&nbsp;&nbsp;&nbsp;(...and still continuing my previous option)</option> 
            <option>Another real option text</option>
        </select>

#5

HTML Code

HTML代码

<section style="background-color:rgb(237.247.249);">
<h2>Test of select menu (SelectboxIt plugin)</h2>
<select name="select_this" id="testselectset">
    <option value="01">Option 1</option>
    <option value="02">Option 2</option>
    <option value="03">Option 3</option>
    <option value="04">Option 4</option>
    <option value="05">Option 5</option>
    <option value="06">Option 6</option>
    <option value="07">Option 7 with a really, really long text line that we shall use in order to test the wrapping of text within an option or optgroup</option>
    <option value="08">Option 8</option>
    <option value="09">Option 9</option>
    <option value="10">Option 10</option>
</select>
</section>

Javascript Code

Javascript代码

    $(function(){

        $("#testselectset").selectBoxIt({
            theme: "default",
            defaultText: "Make a selection...",
            autoWidth: false
        });


    });

CSS Code

CSS代码

.selectboxit-container .selectboxit, .selectboxit-container .selectboxit-options {
  width: 400px; /* Width of the dropdown button */
  border-radius:0;
  max-height:100px;
}

.selectboxit-options .selectboxit-option .selectboxit-option-anchor {
  white-space: normal;
  min-height: 30px;
  height: auto;
}

and you have to add some Jquery Library select Box Jquery CSS

你必须添加一些Jquery库选择Box Jquery CSS

Jquery Ui Min JS

SelectBox Js

Please check this link JsFiddle Link

请检查此链接JsFiddle Link

#6

Does not work fully (the hr line part) on all browsers, but here is the solution:

在所有浏览器上都不能完全运行（hr行部分），但这是解决方案：

<select name="selector">
  <option value="1">Option 1</option>
  <option value="2">Option 2</option>
  <option value="3">Option 3</option>
  <option disabled><hr></option>
  <option value="4">Option 4</option>
  <option value="5">Option 5</option>
  <option value="6">Option 6</option>
</select>

#7

Instead, maybe try replacing the select with markup, e.g.

相反，也许尝试用标记替换选择，例如

// Wrap any selects that should be replaced
$('select.replace').wrap('<div class="select-replacement-wrapper"></div>');

// Replace placeholder text with select's initial value
$('.select-replacement-wrapper').each(function() {
	$(this).prepend('<a>' + $('select option:selected', this).text() + '</a>');
});

// Update placeholder text with updated select value
$('select.replace').change(function(event) {
  $(this).siblings('a').text( $('option:selected', this).text() );
});

/* Position relative, so that we can overlay the hidden select */
.select-replacement-wrapper {
  position: relative;
  border: 3px solid red; /* to show area */
  width: 33%;
  margin: 0 auto;
}

/* Only shows if JS is enabled */
.select-replacement-wrapper a {
  /* display: none; */
  /* Notice that we've centered this text - 
   you can do whatever you want, mulitple lines wrap, etc, 
   since this is not a select element' */
  text-align: center;
  display: block;
  border: 1px solid blue;
}

select.replace {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  border: 1px solid green;
  opacity: 0;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>


<select id="dropdown" class="replace">
  <option value="First">First</option>
  <option value="Second" selected>Second, and this is a long line, just to show wrapping</option>
  <option value="Third">Third</option>
</select>

#8

-1

yes, by using css styles white-space: pre-wrap; in the .dropdown class of the bootstrap by overriding it. Earlier it is white-space: nowrap; so it makes the dropdown wrapped into one line. pre-wrap makes it as according to the width.

是的，通过使用css样式white-space：pre-wrap;在引导程序的.dropdown类中通过覆盖它。早先它是白色空间：nowrap;所以它使下拉包装成一行。预包装使其成为根据宽度。

#1