表格排序

本文介绍了一个简单的JavaScript实现的表格排序功能。通过点击表头可以对表格中的数据进行升序排列,支持字符串、整数、浮点数及日期类型的数据排序。

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<html>
    
<head>
    
<title>Table Sort Example</title>
        
<script type="text/javascript">
            
function convert(sValue, sDataType) {
                
switch(sDataType) {
                    
case "int":
                        
return parseInt(sValue);
                    
case "float":
                        
return parseFloat(sValue);
                    
case "date":
                        
return new Date(Date.parse(sValue));
                    
default:
                        
return sValue.toString();
                
                }
            }
        
            
function generateCompareTRs(iCol, sDataType) {
                
return  function compareTRs(oTR1, oTR2) {
                            
var vValue1 = convert(oTR1.cells[iCol].firstChild.nodeValue, sDataType);
                            
var vValue2 = convert(oTR2.cells[iCol].firstChild.nodeValue, sDataType);
                            
if (vValue1 < vValue2) {
                                
return -1;
                            } 
else if (vValue1 > vValue2) {
                                
return 1;
                            } 
else {
                                
return 0;
                            }
                        };
            }
           
            
function sortTable(sTableID, iCol, sDataType) {
                
var oTable = document.getElementById(sTableID);
                
var oTBody = oTable.tBodies[0];
                
var colDataRows = oTBody.rows;
                
var aTRs = new Array;
                
for (var i=0; i < colDataRows.length; i++) {
                    aTRs[i] 
= colDataRows[i];
                }

                
if (oTable.sortCol == iCol) {
                    aTRs.reverse();
                } 
else {
                    aTRs.sort(generateCompareTRs(iCol, sDataType));
                }

                
var oFragment = document.createDocumentFragment();
                
for (var i=0; i < aTRs.length; i++) {
                    oFragment.appendChild(aTRs[i]);
                }
                oTBody.appendChild(oFragment);
                oTable.sortCol 
= iCol;
            }
        
</script>
    
</head>
    
<body>
        
<p>Click on the table header to sort in ascending order.</p>
        
<table border="1" id="tblSort">
            
<thead>
                
<tr>
                    
<th onclick="sortTable('tblSort', 0)" 
                        style
="cursor:pointer">Last Name</th>
                    
<th onclick="sortTable('tblSort', 1)" 
                        style
="cursor:pointer">First Name</th>
                    
<th onclick="sortTable('tblSort', 2, 'date')" 
                        style
="cursor:pointer">Birthday</th>
                    
<th onclick="sortTable('tblSort', 3, 'int')" 
                        style
="cursor:pointer">Siblings</th>
                
</tr>
            
</thead>
            
<tbody>
                
<tr>
                    
<td>Smith</td>
                    
<td>John</td>
                    
<td>7/12/1978</td>
                    
<td>2</td>
                
</tr>
                
<tr>
                    
<td>Johnson</td>
                    
<td>Betty</td>
                    
<td>10/15/1977</td>
                    
<td>4</td>
                
</tr>
                
<tr>
                    
<td>Henderson</td>
                    
<td>Nathan</td>
                    
<td>2/25/1949</td>
                    
<td>1</td>
                
</tr>
                
<tr>
                    
<td>Williams</td>
                    
<td>James</td>
                    
<td>7/8/1980</td>
                    
<td>4</td>
                
</tr>
                
<tr>
                    
<td>Gilliam</td>
                    
<td>Michael</td>
                    
<td>7/22/1949</td>
                    
<td>1</td>
                
</tr>
                
<tr>
                    
<td>Walker</td>
                    
<td>Matthew</td>
                    
<td>1/14/2000</td>
                    
<td>3</td>
                
</tr>
            
</tbody>
        
</table>        
    
</body>
</html>
注意:   1.有时td里面东西封装了,js会报错,此时需要在td里面加一些东西,比如说&nbsp;
2.汉字不能进行排序,只能颠倒顺序.
3.日期排序需要按照上面的格式显示
 
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