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POHow to calculate sum for multiple rows?
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2013-06-06T10:30:16.497
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<p>Hi i am using <a href="http://i.stack.imgur.com/AziAV.png" rel="nofollow">this table</a> to calculate the sum.what i have to do is i want to take input from textboxes below r1,r2,r3, and calculate the sum from boxes below for example:- <code>totalcost= r1.value*5+r2.value*6+r3.value*5</code> like this it has to happen for each row values onclick....how can i do this?</p> <p>here us my code:</p> <pre><code><!DOCTYPE html> <html> <head> <script type="text/javascript"> function updatesum() { var totalFields = document.input.time.length; for(var i=0; i <= totalFields; i++){ document.input.total[i].value = ( document.input.time[i].value * document.input.cost[i].value); } return false; } </script> <style> input { float: right; } </style> </head> <body> <form name="input" action="#" method="post" onsubmit="return false;"> <table border="1"> <tr><th>Sl.no</th><th>id</th><th>title</th><th>R1<br><input type="text" name="cost" value=" "></th><th>R2<br><input type="text" name="cost" value=" "></th><th>R3<br><input type="text" name="cost" value=" "></th><th>Total Cost</th></tr> <tr><td>1</td><td>1.1</td><td>task1</td><td><input type="text" name="time" value="5" disabled></td><td><input type="text" name="time" value="6" disabled></td><td><input type="text" name="time" value="5" disabled></td><td><input type="text" name="cost" value=" " disabled></td></tr> <tr><td>2</td><td>1.2</td><td>task1</td><td><input type="text" name="time" value="7" disabled></td><td><input type="text" name="time" value="8" disabled></td><td><input type="text" name="time" value="2" disabled></td><td><input type="text" name="cost" value=" " disabled></td></tr> <tr><td>3</td><td>1.4</td><td>task1</td><td><input type="text" name="time" value="9" disabled></td><td><input type="text" name="time" value="4" disabled></td><td><input type="text" name="time" value="7" disabled></td><td><input type="text" name="cost" value=" " disabled></td></tr> <tr><td colspan="7"><input type="submit" value="submit" name="submit" onclick="updatesum()"></td></tr> </table> </form> </body> </html> </code></pre>
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How to calculate sum for multiple rows?
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