我正在尝试将row1中的表单值与row2的表单值交换,而不交换行。有人可以炫耀我用纯Javascript,香草JS或jQuery实现这一目标。我使表行变短了,只有两行,但实际的表由17行组成。请仔细查看第三个示例中的id和表单值。
如果未单击“向上”或“向下”按钮,则表格的形式如下:
<form id="menuitems">
<table class="toolbaritems">
<tbody class="sortable">
<tr id="row1">
<td><button class="up_arrow">UP</button></td>
<td><input value="1></td>
<td><select><option="1" selected></option></select></td>
<td><select><option="1a" selected></option></select></td>
<td><img id="img1"></td>
</tr>
<tr id="row2">
<td><button class="down_arrow">DOWN</button></td>
<td><input value="2"></td>
<td><select><option="2" selected></option></select></td>
<td><select><option="2a" selected></option></select></td>
<td><img id="img2"></td>
</tr>
<tr><td><input type="submit" value="SAVE"></td></tr>
</tbody>
</table>
</form>
当前的代码-单击UP或DOWN按钮时,表格如下所示:
<form id="menuitems">
<table class="toolbaritems">
<tbody class="sortable">
<tr id="row2">
<td><button class="up_arrow">UP</button></td>
<td><input value="2"></td>
<td><select><option="2" selected></option></select></td>
<td><select><option="2a" selected></option></select></td>
<td><img id="img2"></td>
</tr>
<tr id="row1">
<td><button class="down_arrow">DOWN</button></td>
<td><input value="1"></td>
<td><select><option="1" selected></option></select></td>
<td><select><option="1a" selected></option></select></td>
<td><img id="img1"></td>
</tr>
<tr><td><input type="submit" value="SAVE"></td></tr>
</tbody>
</table>
</form>
这就是我要完成的工作-输入值除tr外应交换。注意,tr id保持不变,但是交换了表单值:
有没有一种方法可以用纯JavaScript,香草JS或jquery来实现。如果可以用.html()而不是.val()来做,那就更好了。
<form id="menuitems">
<table class="toolbaritems">
<tbody class="sortable">
<tr id="row1">
<td><button class="down_arrow">DOWN</button></td>
<td><input value="2"></td>
<td><select><option="2" selected></option></select></td>
<td><select><option="2a" selected></option></select></td>
<td><img id="img2"></td>
</tr>
<tr id="row2">
<td><button class="up_arrow">UP</button></td>
<td><input value="1"></td>
<td><select><option="1" selected></option></select></td>
<td><select><option="1a" selected></option></select></td>
<td><img id="img1"></td>
</tr>
<tr><td><input type="submit" value="SAVE"></td></tr>
</tbody>
</table>
</form>
最佳答案
抱歉,花了一段时间才回到这个问题。我将其作为另一个答案提交,以便您可以比较这两种解决方案。它们非常相似,您可能会发现比较更改很有用。
jsFiddle Solution
var tbl = $('table'),new_ndx,topRow,trStuff,botRow,brStuff;
$(document).on('click','button',function() {
var dir = $(this).attr('class');
var row = $(this).closest("tr");
var ndx = row.index();
//row.remove();
if (dir=='up_arrow'){
new_ndx = ndx-1;
topRow = tbl.find('tr').eq(new_ndx);
trStuff = topRow.html();
botRow = tbl.find('tr').eq(ndx);
brStuff = botRow.html();
topRow.html(brStuff);
botRow.html(trStuff);
} else {
new_ndx = ndx++;
topRow = tbl.find('tr').eq(new_ndx);
trStuff = topRow.html();
botRow = tbl.find('tr').eq(ndx);
brStuff = botRow.html();
topRow.html(brStuff);
botRow.html(trStuff);
}
});