Calculate and display value in the last td
Goal:
Calculate and display right answer in the last td in the tr by selecting row(s). For instance, if I choose the second row, I would get value 44 and it should be applied in the last td of the row.Problem:
I know how to do it in javascript but in jQuery.Need help with the source code in jQuery.
// fullmetalboy
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>
<title>index</title>
<SCRIPT language="javascript">
function addRow(tableID) {
var table = document.getElementById(tableID);
var rowCount = table.rows.length;
var row = table.insertRow(rowCount);
var cell1 = row.insertCell(0);
var element1 = document.createElement("input");
element1.type = "checkbox";
cell1.appendChild(element1);
var cell2 = row.insertCell(1);
cell2.innerHTML = rowCount + 1;
var cell3 = row.insertCell(2);
cell3.innerHTML = "22";
var cell4 = row.insertCell(3);
cell4.innerHTML = "";
}
function deleteRow(tableID) {
try {
var table = document.getElementById(tableID);
var rowCount = table.rows.length;
for(var i=0; i<rowCount; i++)
{
var row = table.rows[i];
var chkbox = row.cells[0].childNodes[0];
if(null != chkbox && true == chkbox.checked)
{
var sdf = 23;
//table.deleteRow(i);
开发者_JAVA技巧 //rowCount--;
//i--;
}
}
}catch(e) {
alert(e);
}
}
</SCRIPT>
</head>
<body>
<INPUT type="button" value="Add Row" onclick="addRow('dataTable')" />
<INPUT type="button" value="Calculate selected row" onclick="deleteRow('dataTable')" />
<TABLE id="dataTable" width="350px" border="1">
<TR>
<TD><INPUT type="checkbox" name="chk"/></TD>
<TD>1</TD>
<TD>22</TD>
<TD></TD>
</TR>
</TABLE>
</body>
</html>
You could do (you can check more than one columns and the result is calculated for each row):
$(document).ready(function(){
$('#calculate').click(function(){
$('input:checkbox:checked').each(function(){
var first = parseInt($(this).closest('td').next('td').text(), 10);
var sec = parseInt($(this).closest('td').next('td').next('td').text(), 10);
var result = (first*sec);
$(this).closest('tr').find('td:last').html(result)
});
});
});
Fidlle here: http://jsfiddle.net/D2uVz/
加载中,请稍侯......
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