In this blog we will know how to Insert Update Delete DataGridView.

App.config

<?xml version="1.0" encoding="utf-8" ?>

<configuration>

<appSettings>

<add key="dsn" value="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=..\EMP.mdb" />

</appSettings>

</configuration>

Form1.cs

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 Insert_Update_Delete_DataGridView

{

public partial class Form1 : Form

{

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

OleDbCommand com;

OleDbDataAdapter oledbda;

string str;

DataSet ds;

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 employee";

com = new OleDbCommand(str, con);

oledbda = new OleDbDataAdapter(com);

ds = new DataSet();

oledbda.Fill(ds, "employee");

dataGridView1.DataMember="employee";

dataGridView1.DataSource = ds;

con.Close();

}

private void Clear()

{

txt_sno.Text = "";

txt_name.Text = "";

txt_address.Text = "";

txt_age.Text = "";

}

private void btn_edit_Click(object sender, EventArgs e)

{

int i;

i = dataGridView1.SelectedCells[0].RowIndex;

txt_sno.Text = dataGridView1.Rows[i].Cells[1].Value.ToString();

txt_name.Text = dataGridView1.Rows[i].Cells[2].Value.ToString();

txt_address.Text = dataGridView1.Rows[i].Cells[3].Value.ToString();

txt_age.Text = dataGridView1.Rows[i].Cells[4].Value.ToString();

}

private void btn_update_Click(object sender, EventArgs e)

{

OleDbConnection con = new OleDbConnection(ConnectionString);

con.Open();

str = "Update employee set sno=@sno,name=@name,address=@address,age=@age Where sno=@sno";

com = new OleDbCommand(str, con);

com.Parameters.AddWithValue("@sno", txt_sno.Text);

com.Parameters.AddWithValue("@name", txt_name.Text);

com.Parameters.AddWithValue("@address", txt_address.Text);

com.Parameters.AddWithValue("@age", txt_age.Text);

com.ExecuteNonQuery();

MessageBox.Show("Record Successfully Updated");

con.Close();

bindgrid();

Clear();

}

private void btn_delete_Click(object sender, EventArgs e)

{

OleDbConnection con = new OleDbConnection(ConnectionString);

com = new OleDbCommand();

if (dataGridView1.Rows.Count > 1 && dataGridView1.SelectedRows[0].Index != dataGridView1.Rows.Count - 1)

{

com.CommandText = "DELETE FROM employee WHERE ID=" + dataGridView1.SelectedRows[0].Cells[0].Value.ToString() + "";

con.Open();

com.Connection = con;

com.ExecuteNonQuery();

con.Close();

dataGridView1.Rows.RemoveAt(dataGridView1.SelectedRows[0].Index);

MessageBox.Show("Record Successfully Deleted");

}

bindgrid();

}

private void btn_insert_Click(object sender, EventArgs e)

{

OleDbConnection con = new OleDbConnection(ConnectionString);

con.Open();

str = "Insert into employee(sno,name,address,age) Values (@sno,@name,@address,@age)";

com = new OleDbCommand(str, con);

com.Parameters.AddWithValue("@sno", txt_sno.Text);

com.Parameters.AddWithValue("@name", txt_name.Text);

com.Parameters.AddWithValue("@address", txt_address.Text);

com.Parameters.AddWithValue("@age", txt_age.Text);

com.ExecuteNonQuery();

con.Close();

MessageBox.Show("Record Successfully Inserted");

bindgrid();

Clear();

}

}

}

Thanks for reading