我的页面上有几个html表格,我希望能够根据其中一个单元格值的值对它们进行排序。这是我的表格的一个例子
<div id="tables">
<table class="sortable">
<tr>
<td>Comic Book Name</td>
<td id="comic">Batman</td>
</tr>
<tr>
<td>Main Character</td >
<td ="character">Bruce Wayne</td>
</tr>
<tr>
<td>Hero Name</td>
<td id="hero">Batman</td>
</tr>
<tr>
<td>Published</td>
<td id="publish">05/01/1940</td>
</tr>
</table>
<table class="sortable">
<tr>
<td>Comic Book Name</td>
<td id="comic">Green Arrow</td>
</tr>
<tr>
<td>Main Character</td >
<td ="character">Oliver Queen</td>
</tr>
<tr>
<td>Hero Name</td>
<td id="hero">Green Arrow</td>
</tr>
<tr>
<td>Published</td>
<td id="publish">11/01/1941</td>
</tr>
</table>
</div>
我提供以下下拉菜单以允许用户过滤。
<select id="OrderBy">
<option selected="selected" value="comic">Comic Name</option>
<option value="character">Character Name</option>
<option value="hero">Hero Name</option>
<option value="publish">Earliest Publish Date</option>
</select>
我希望这里按照漫画书名称的字母顺序对表格进行排序,选择漫画名称时,按字符名称选择字符名称等按字母顺序排序等。
这是我到目前为止提出的javascript / jquery。我确信这可以做得更好,但我是Javascript和Jquery的新手。
$('#OrderBy').on('change', function () {
_order = $('#OrderBy').val();
switch (_order) {
case "comic":
$('#sortable').sort(function () {
});
break;
case "character":
$('#sortable').children().sort(function (a, b) {
});
break;
case "publish":
$('#sortable').sort(function () {
});
break;
case "publish":
$('#sortable').sort(function () {
if ($(b).children().find('#Hours').text() - $(a).children().find('#publish').text() <= 0) {
return $(a) - $(b);
}
return $(b) - $(a);
});
break;
}
});
我到处都看到有人建议使用Sorttables或tableSorter,但我只看到它们如何适用于正在排序行的单个表。我知道在这一点上每个人都在想什么,不要这样使用表格。我的问题是已经有一堆jquery和javascript支持表格,而且我没有足够的语言来重写所有这些。
我喜欢按照With ... End With statement所述将所有内容推送到堆栈的想法,但我总是生成一个关于我的数组/堆栈未定义的错误。
答案 0 :(得分:1)
首先,你不应该多次使用相同的id,而是使用类:
<div id="tables">
<table class="sortable">
<tr>
<td>Comic Book Name</td>
<td class="comic">Green Arrow</td>
</tr>
<tr>
<td>Main Character</td >
<td class="character">Oliver Queen</td>
</tr>
<tr>
<td>Hero Name</td>
<td class="hero">Green Arrow</td>
</tr>
<tr>
<td>Published</td>
<td class="publish">11/01/1941</td>
</tr>
</table>
<table class="sortable">
<tr>
<td>Comic Book Name</td>
<td class="comic">Batman</td>
</tr>
<tr>
<td>Main Character</td >
<td class="character">Bruce Wayne</td>
</tr>
<tr>
<td>Hero Name</td>
<td class="hero">Batman</td>
</tr>
<tr>
<td>Published</td>
<td class="publish">05/01/1940</td>
</tr>
</table>
</div>
对于您的问题,我会使用原生的Array.prototype.sort
方法
var tables = [];
var $tables = $("table.sortable");
var container = $("#tables");
// this is the only specific case, as the date does not start by the year
// it will be used to sort by publish date
function sortByDate(a, b) {
return new Date(a.publish).getTime() - new Date(b.publish).getTime();
}
function sortTables(order) {
var sort;
if (order === "publish") {
tables = tables.sort(sortByDate);
} else {
tables = tables.sort(function(a, b) {
return a[order] < b[order] ? -1 : 1;
});
}
tables.forEach(function(data,i) {
tables[i].$el.detach()
container.append(tables[i].el);
});
}
function init() {
//populate the tables array that will be sorted
$tables.each(function(i, val) {
var $this = $(this);
tables.push({
$el: $this,
el: this,
comic: $this.find(".comic").text(),
character: $this.find(".character").text(),
hero: $this.find(".hero").text(),
publish: $this.find(".publish").text()
});
});
$("#OrderBy").on("change", function(event) {
sortTables(event.currentTarget.value);
});
//by default sort by Hero
sortTables("hero");
}
init();
答案 1 :(得分:0)
主要是,当您在两个不同的表中有数据时,排序不会发生。为了使它成为可能,你需要将id放到它们身上,而不仅仅是类,因为你的主要问题不是CSS。同样,如果您将相同的ID放在不同的内容中,则无法专门发现它。因此,调试的代码将是:
<div id="tables">
<table id="tbl1" class="sortable">
<tr>
<td>Comic Book Name</td>
<td class="comic">Batman</td>
</tr>
<tr>
<td>Main Character</td >
<td class="character">Bruce Wayne</td>
</tr>
<tr>
<td>Hero Name</td>
<td class="hero">Batman</td>
</tr>
<tr>
<td>Published</td>
<td class="publish">05/01/1940</td>
</tr>
</table>
<table id="tbl2" class="sortable">
<tr>
<td>Comic Book Name</td>
<td class="comic">Green Arrow</td>
</tr>
<tr>
<td>Main Character</td >
<td class="character">Oliver Queen</td>
</tr>
<tr>
<td>Hero Name</td>
<td class="hero">Green Arrow</td>
</tr>
<tr>
<td>Published</td>
<td class="publish">11/01/1941</td>
</tr>
</table>
您的下拉菜单(过滤器框)已正确定义。现在,在js代码中,存在一些语法错误。 比如,'class'标识符是'。','id'标识符是'#',你使用'#'而不是'。'一些地方:
switch (_order) {
case "comic":
$('#sortable').sort(function () {});
调试代码将是:
$('#OrderBy').on('change', function () {
_order = $('#OrderBy').val();
switch (_order) {
case "comic":
$('.sortable').sort(function () {});
break;
case "character":
$('.sortable').children().sort(function (a, b) {
});
break;
case "publish":
$('.sortable').sort(function () {
});
break;
case "publish":
$('.sortable').sort(function () {
if ($(b).children().find('#Hours').text() - $(a).children().find('#publish').text() <= 0) {
return $(a) - $(b);
}
return $(b) - $(a);
});
break;
}});
没有正式的表sort()函数jquery库。它只适用于数组,但你不会在这里有任何数组。 所以我们自己做一个排序功能。我们可以将它命名为“sortTable()”。这个代码应该是:
<!-- -------------------------------------------------------------- -->
<!-- Secondary functions -->
<!-- Creates a new table to display the sorted Table -->
function createEmptyTable(){
var outerDiv = document.createElement('div');
outerDiv.setAttribute('id','ResultTable');
var innerTable = doucment.createElement('table');
innerTable.setAttribute('id','sortedTable');
var newRows = new Array();
var recordIndex = document.getElementsByClassName('comic');
innerTable.innerHTML = "<tr> <th>Comic Book Name </th> <th>Main Character</th> <th>Hero Name</th> <th>Published</th> </tr>";
for(var i=0; i<recordIndex.Length;i++){
newRows[i]= document.createElement('tr');
outerDiv.appendChild(innerTable).appendChild(newRows[i]);
}
}
<!-- ------------------------------------------------------------- -->
<!-- function to find out in which table chosen filter belongs -->
function recordSearch(keyWord){
var sortableTables = document.getElementsByClassName('sortable');
for( var i=0; i<sortableTables.length;i++){
if($(sortableTables[i]).find(keyword)){
return sortableTable[i];
}
}
<!-- ------------------------------------------------------------- -->
<!-- Primary function to sort the Table -->
function sortTable(filtered_option){
<!-- first we delete any existing sorted table -->
if(document.getElementById('ResultTable')){
var existingSortedTable = document.getElementbyId('ResultTable');
existingSortedTable.removeChild(document.getElementById('sortedTable');
}
<!-- now we create new table & put the result -->
createEmptyTable();
var comicNames = document.getElementsByClassName('comic');
var characterNames = document.getElementsByClassName('character');
var heroNames = document.getElementsByClassName('hero');
var publishDates = document.getElementsByClassName('publish');
switch (filtered_option) {
case 'comic' :
var sortedComicNames = comicNames.sort();
for(var i=0;i<sortedComicNames.length;i++){
var foundRecord = recordSearch(sortedComicNames[i]);
var allFields = foundRecord.getElementByTagName('tr').getElementsByClassName('td');
var emptyRows = document.getElementById('sortedTable').getElementsByTagName('tr');
for(var j=0;j<allFields.length;j++){
emptyRows[i+1].innerHTML = "<td>" + allFields[j].value + "</td>" ;
}}
break;
case 'character' :
var sortedCharacterNames= characterNames.sort();
for(var i=0;i<characterNames.length;i++){
var foundRecord = recordSearch(sortedCharacterNames[i]);
var allFields = foundRecord.getElementByTagName('tr').getElementsByClassName('td');
var emptyRows = document.getElementById('sortedTable').getElementsByTagName('tr');
for(var j=0;j<allFields.length;j++){
emptyRows[i+1].innerHTML = "<td>" + allFields[j].value + "</td>" ;
}}
break;
case 'hero' :
var sortedHeroNames= heroNames.sort();
for(var i=0;i<heroNames.length;i++){
var foundRecord = recordSearch(heroNames[i]);
var allFields = foundRecord.getElementByTagName('tr').getElementsByClassName('td');
var emptyRows = document.getElementById('sortedTable').getElementsByTagName('tr');
for(var j=0;j<allFields.length;j++){
emptyRows[i+1].innerHTML = "<td>" + allFields[j].value + "</td>" ;
}}
break;
case 'publish' :
var sortedPublishedDates= publishedDates.sort();
for(var i=0;i<publishedDates.length;i++){
var foundRecord = recordSearch(publishedDates[i]);
var allFields = foundRecord.getElementByTagName('tr').getElementsByClassName('td');
var emptyRows = document.getElementById('sortedTable').getElementsByTagName('tr');
for(var j=0;j<allFields.length;j++){
emptyRows[i+1].innerHTML = "<td>" + allFields[j].value + "</td>" ;
}}
break;
}
}
<!-- -------------------------------------------------------------------- -->
将它们放在一起然后尝试。如果有效,请告诉我。