CSS：设置表中所选行的颜色 [英] CSS: set color for selected row in a table

问题描述

我需要向我的表中添加以下功能：当用户点击一行（选择它）时，该行标记为颜色＃FFCF8B（与悬停相同）。我尝试＃newspaper-b tbody tr.selected td ，但它不工作。

I need to add the following feature to my table: when the user clicks on a row (selects it), the row is marked with the color #FFCF8B (the same as hover). I tried #newspaper-b tbody tr.selected td, but it does not work.

   #newspaper-b {
        border-collapse: collapse;
        border-color: #B7DDF2;
        border-style: solid;
        border-width: 1px;
        font-family: Arial,Helvetica,sans-serif;
        font-size: 11px;
        margin: 0;
        text-align: left;
        width: 480px;
    }
    #newspaper-b th {
        background: none repeat scroll 0 0 #EBF4FB;
        border-color: lightgray;
        font-size: 11px;
        font-weight: bold;
        padding: 15px 10px 10px;
    }
    #newspaper-b tbody tr td {
        background: none repeat scroll 0 0 #FFFFFF;
    }
    #newspaper-b td {
        border-top: 1px dashed #FFFFFF;
        color: #000000;
        padding: 10px;
    }
    #newspaper-b tbody tr:hover td {
        background: none repeat scroll 0 0 #FFCF8B;
        color: #000000;
    }
    #newspaper-b tbody tr.selected td {
        background: none repeat scroll 0 0 #FFCF8B;
        color: #000000;
    }

推荐答案

示例 http： //jsfiddle.net/thebabydino/KzVfy/

我使用jQuery作为示例，因此只有很少的代码：

I used jQuery for the example, so there is very little code:

$("tr").click(function(){
    $(this).addClass("selected").siblings().removeClass("selected");
});​

当然，

只是为了变化，我做了另一个版本。 这个不使用库（没有jQuery，没有Mootools，没有YUI，没有Dojo，等等），并选择多行。在 http://jsfiddle.net/thebabydino/nY5jj/ 可以看到，点击时取消选中所选行的变体再次 http://jsfiddle.net/thebabydino/nY5jj/1/

Just for variation, I did another version. This one uses no library (no jQuery, no Mootools, no YUI, no Dojo, and so on...) and selects multiple rows. Can be seen at http://jsfiddle.net/thebabydino/nY5jj/ with a variation that unselelects a selected row when clicking on it again http://jsfiddle.net/thebabydino/nY5jj/1/

JavaScript是：

The JavaScript is:

var trs = document.querySelectorAll("tr");
for(var i = 0; i < trs.length; i++){
    trs[i].addEventListener("click", function(){this.className += " selected";});
}​

第二次单击时取消选择所选行： p>

To unselect a selected row when clicking on it a second time :

var trs = document.querySelectorAll("tr");
for(var i = 0; i < trs.length; i++){
    trs[i].addEventListener("click", function(){
        var cn = this.className, thc = " selected", start_idx = cn.indexOf(thc);
        if(start_idx == -1) cn += thc;
        else cn = cn.replace(thc,"");
        this.className = cn;
    });
}​

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