简单的斑马纹表格

简单的斑马纹表格,如果页面上有大量的表格数据时,隔行变色的斑马纹会帮助我们快速阅读,有利于用户体验。我们今天不讨论在动态语言中的方法,只讨论CSS,JavaScript,MooTools 是如何实现的,并有三种可行性方案。

我们的表格

The Html Code:

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<table id="playlist" cellspacing="0">
	<tbody>
		<tr>
			<td>1</td>
			<td>Lost In The Plot</td>
			<td>The Dears</td>
		</tr>
		<tr>
			<td>2</td>
			<td>Poison</td>
			<td>The Constantines</td>
		</tr>
		<tr>
			<td>3</td>
			<td>Plea From A Cat Named Virtute</td>
			<td>The Weakerthans</td>
		</tr>
		<tr>
			<td>4</td>
			<td>Melissa Louise</td>
			<td>Chixdiggit!</td>
		</tr>
 
		<tr>
			<td>5</td>
			<td>Living Room</td>
			<td>Tegan And Sara</td>
 
		</tr>
		<tr>
			<td>6</td>
			<td>Speed</td>
			<td>Bran Van 3000</td>
		</tr>
		<tr>
			<td>7</td>
			<td>Fast Money Blessing</td>
			<td>King Cobb Steelie</td>
		</tr>
 
		<tr>
			<td>8</td>
			<td>Sore</td>
			<td>Buck 65</td>
		</tr>
		<tr>
			<td>9</td>
			<td>Love Travel</td>
			<td>Danko Jones</td>
		</tr>
		<tr>
			<td>10</td>
			<td>You Never Let Me Down</td>
			<td>Furnaceface</td>
		</tr>	
	</tbody>
 
</table>

我们上面所看到的表格,就是我们要美化的表格,要实现斑马纹的表格。

斑马纹的表格

 

演示

 

方案一 :

在CSS3中有许多的伪类选择器,其中的

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E:nth-child(n){attribute}

它可以匹配父元素中的第n个子元素E。

了解更多:http://www.w3.org/TR/2005/WD-css3-selectors-20051215/#Structural pseudo-classes

The CSS3 Code

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/*获得奇偶数的子元素*/
tr:nth-child(odd)		{ background-color:#eee; }//所有奇数序子元素
tr:nth-child(even)		{ background-color:#fff; }//所有偶数序子元素
/*同上一样的作用*/
tr:nth-child(2n){background-color:#eee;} //返回偶数序的子元素
tr:nth-child(2n+1){ background-color:#fff;} //返回奇数序的子元素

方案二 :

The JavaScript Code

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  // this function is need to work around 
  // a bug in IE related to element attributes
  function hasClass(obj) {
     var result = false;
     if (obj.getAttributeNode("class") != null) {
         result = obj.getAttributeNode("class").value;
     }
     return result;
  }   
 
 function stripe(id) {
 
    // the flag we'll use to keep track of 
    // whether the current row is odd or even
    var even = false;
 
    // if arguments are provided to specify the colours
    // of the even & odd rows, then use the them;
    // otherwise use the following defaults:
    var evenColor = arguments[1] ? arguments[1] : "#fff";
    var oddColor = arguments[2] ? arguments[2] : "#eee";
 
    // obtain a reference to the desired table
    // if no such table exists, abort
    var table = document.getElementById(id);
    if (! table) { return; }
 
    // by definition, tables can have more than one tbody
    // element, so we'll have to get the list of child
    // &lt;tbody&gt;s 
    var tbodies = table.getElementsByTagName("tbody");
 
    // and iterate through them...
    for (var h = 0; h < tbodies.length; h++) {
 
     // find all the &lt;tr&gt; elements... 
      var trs = tbodies[h].getElementsByTagName("tr");
 
      // ... and iterate through them
      for (var i = 0; i < trs.length; i++) {
 
	    // avoid rows that have a class attribute
        // or backgroundColor style
	    if (!hasClass(trs[i]) && ! trs[i].style.backgroundColor) {
 
         // get all the cells in this row...
          var tds = trs[i].getElementsByTagName("td");
 
          // and iterate through them...
          for (var j = 0; j < tds.length; j++) {
 
            var mytd = tds[j];
 
            // avoid cells that have a class attribute
            // or backgroundColor style
	        if (! hasClass(mytd) && ! mytd.style.backgroundColor) {
 
		      mytd.style.backgroundColor = even ? evenColor : oddColor;
 
            }
          }
        }
        // flip from odd to even, or vice-versa
        even =  ! even;
      }
    }
  }
window.onload=function(){stripe('playlist', '#fff', '#eee');}

演示

在以前MooTools1.1的老版本中是不支持CSS3选择器的,那又如何实现那。

方案三 :

The CSS Code:

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.odd{
	background:#fff;
	color: #666;
}
.even{
	background-color: #3d80df;
	color: #FFF;	
}

The MooTools JavaScript:

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window.addEvent('domready', function() {
	var count = 0;
	$$('table.shade-table tr').each(function(el) {
		el.addClass(count++ % 2 == 0 ? 'odd' : 'even');
	});
});

注意:

关于el.addClass(count++ % 2 == 0 ? ‘odd’ : ‘even’); 语句,asins 老兄有更好的写法:el.addClass([‘odd’, ‘even’][count++ % 2]);

如果你已经使用了MooTools1.2+的版本,我们就可以用MooTools Selectors的伪类选择器,它的语法是类似于CSS3的伪类选择器的。

The MooTools JavaScript:

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$$('table#playlist tr:nth-child(odd)').addClass('odd');
 
$$('table#playlist tr:nth-child(even)').addClass('even');
/*
$$('table#playlist tr:nth-child(2n+1)').addClass('odd');
 
$$('table#playlist tr:nth-child(2n)').addClass('even');*/

在鼠标经过时高亮表格行列

The CSS Code:

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.over{
	background-color:#F00;
	color:#FFF;
}

The MooTools JavaScript:

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$$("table#playlist tr").addEvent('mouseover',function() {this.addClass("over");}).addEvent('mouseout',function() {this.removeClass("over");});

 

演示

 

– The End –

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