Sum the values of the datagridview cell columns

In this blog we will know how to sum the values of the datagridview cell columns.

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.Data.OleDb;

namespace Sum_in_datagridview

{

public partial class Form1 : Form

{

string ConnectionString = System.Configuration.ConfigurationSettings.AppSettings["dsn"];

OleDbCommand com;

OleDbDataAdapter oledbda;

DataSet ds;

string str;

public Form1()

{

InitializeComponent();

}

private void Form1_Load(object sender, EventArgs e)

{

bindgrid();

}

private void bindgrid()

{

OleDbConnection con = new OleDbConnection(ConnectionString);

con.Open();

str = "select * from product";

com = new OleDbCommand(str, con);

oledbda = new OleDbDataAdapter(com);

ds = new DataSet();

oledbda.Fill(ds, "product");

dataGridView1.DataMember = "product";

dataGridView1.DataSource = ds;

con.Close();

}

private void btn_sum_Click(object sender, EventArgs e)

{

int sum = 0;

for (int i = 0; i < dataGridView1.Rows.Count; ++i)

{

sum += Convert.ToInt32(dataGridView1.Rows[i].Cells[1].Value);

}

label1.Text = "Total sum is:"+sum.ToString();

}

Thanks for reading