How to add up values of Datagrid Column?

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i have Datagrid which hold Account Record of a Client
i want to add all values under Dues Column and show in TextBox....

C#

try
                {

                    SqlConnection conn = new SqlConnection("Server= localhost; database=tailoringmng; integrated Security=true");
                    SqlCommand cmd = new SqlCommand("spiaccount", conn);
                    cmd.CommandType = CommandType.StoredProcedure;
                    cmd.Parameters.AddWithValue("@id",cid);
                    cmd.Parameters.AddWithValue("@oid", oid);
                    SqlDataAdapter da = new SqlDataAdapter(cmd);

                    if (conn == null && conn.State == ConnectionState.Closed)
                    {
                        conn.Open();
                    }

                    dtableorder = new DataTable("myTable");
                    da.Fill(dtableorder);
                    
                    accountgrid.DataSource = dtableorder.DefaultView;

                    conn.Close();
                }
                catch (Exception ex)
                {
                    MessageBox.Show(ex.Message);

                }

and also want if someone change in the above grid values it must update in the Database.
Columns i have
Client Id
Order ID
CName
amountreceive
amountpaid
dues

Posted 14-Feb-14 2:45am

abdul manan 7

Updated 14-Feb-14 17:10pm

agent_kruger

v3

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agent_kruger 14-Feb-14 23:16pm

is dues column numeric?

2 solutions

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Peter Leow · Answer 1 · 2014-02-14T03:55:00

Solution 1

Check these out:
1. TotalRow-DataGrid.aspx[^]
2. Using the DataGrid Control[^]
However, you may want to consider switching to DataGridView for winforms, read this:
http://msdn.microsoft.com/en-us/magazine/cc163933.aspx[^]

Posted 14-Feb-14 3:55am

Peter Leow

Updated 14-Feb-14 3:59am

v2

Krunal Rohit · Answer 2 · 2014-02-14T04:43:00

I assume that it is a Web App,

C#

int total = 0;
protected void gvEmp_RowDataBound(object sender, GridViewRowEventArgs e)
{
    if(e.Row.RowType==DataControlRowType.DataRow)
    {
        total += Convert.ToInt32(DataBinder.Eval(e.Row.DataItem, "Amount"));
    }
    if(e.Row.RowType==DataControlRowType.Footer)
    {
        Label lblamount = (Label)e.Row.FindControl("lblTotal");// instead use your textbox
        lblamount.Text = total.ToString();
    }
}