我有一个表,它可以添加动态行。我要做的是,计算amount
列总数并显示在Expences
字段中。然后减少收入并显示总额在资产负债场如何计算动态行添加表的总和
如: 当用户填写第一行与book
和价格本书amount
column.then点击add item
按钮,并添加本子和笔和显示器的另一row.that时间计算总和expences
field.total意志显示balance
字段。
<div class="col-xs-12">Income (Rs) : <input type="number" min="0.01" step="0.01" name="income" value="2536.67" id="income" >
</div>
<div class="col-xs-12">Expences (Rs) : <input type="number" min="0.01" step="0.01" name="expence" value="" readonly id="expence">
</div>
<div class="col-xs-12">Balance (Rs) : <input type="number" min="0.01" step="0.01" name="balance" value="" readonly id="balance">
</div>
<table class="table table-bordered table-hover" id="tab_logic">
<thead>
<tr >
<th class="text-center">
#
</th>
<th class="text-center">
Category
</th>
<th class="text-center">
Item Name
</th>
<th class="text-center">
Amount
</th>
<th class="text-center">
</th>
</tr>
</thead>
<tbody>
<tr id='addr0'>
<td>
1
</td>
<td>
<select class="form-control" name="cat">
<option value="bill">Bill</option>
<option value="exchange">Exchange</option>
</select>
</td>
<td>
<input type="text" name='name0' placeholder='Item Name' class="form-control"/>
</td>
<td class='amount'>
<input type="number" name='amount' placeholder='Amount' class="form-control" id='amount'/>
</td>
<td>
<input type="file" class="form-control" name="upload" />
</td>
</tr>
<tr id='addr1'></tr>
</tbody>
</table>
<a id="add_row" class="btn btn-default pull-left">Add Item</a><a id='delete_row' class="pull-right btn btn-default">Delete Item</a>
<button type="Submit" class="btn btn-success pull-right btn-lg" >Submit</button>
添加,删除行查询
<script type="text/javascript">
$(document).ready(function(){
var i=1;
$("#add_row").click(function(){
$('#addr'+i).html("<td>"+ (i+1) +"</td><td><select class='form-control' name='cat"+i+"'><option value='bill'>Bill</option><option value='exchange'>Exchange</option></select><td><input name='name"+i+"' type='text' placeholder='Item Name' class='form-control input-md' /> </td><td class='amount'><input name='mail"+i+"' type='number' min='0.01' step='0.01' placeholder='Amount' id='amount"+i+"' class='form-control input-md'></td><td><input type='file' name='upload"+i+"' class='form-control'/></td>");
$('#tab_logic').append('<tr id="addr'+(i+1)+'"></tr>');
i++;
});
$("#delete_row").click(function(){
if(i>1){
$("#addr"+(i-1)).html('');
i--;
}
});
});
</script>
我想这query.this从表TD类CAL。
$(document).ready(function(){
$('.amount').each(function() {
calculateSum();
});
});
function calculateSum() {
var sum = 0;
$(".amount").each(function() {
//add only if the value is number
if(!isNaN(this.value) && this.value.length!=0) {
sum += parseFloat(this.value);
}
});
$('#expence').text(sum);
};
不忘记接受并赞扬答案,这有助于。 – Ravi