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How to calculate the sum of column in grid view using java script
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vino2012 21-Oct-11 9:03am     CRLF
* "grid_list" is my gridview id * "cells[3]" is my column

C#
function Read_Data()
    {
        var str=0;
        var Grid_Table = document.getElementById('<%=grid_list.ClientID%>');
        for(var row=1; row<Grid_Table.rows.length; row++)
        {
                        if(document.all)
                            str=str+Number(Grid_Table.rows[row].cells[3].innerText);

                        else
                            str=str+Number(Grid_Table.rows[row].cells[3].textContent);

        }
        alert(str);
        return false;
    }
 
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Check out this.....

function CalculateSum()
  {
    var grid = document.getElementById('<%=gvAttribute.ClientID %>');
    var gridinput = grid.getElementsByTagName('input');
    var sum = 0*1;

    for(i = 0; i < gridinput.length; i++)
    {
        var value1 = gridinput[i].value;            
        sum = parseFloat(sum) + parseFloat(value1);
    }
    return parseFloat(sum);
  }
 
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