Show a Message box, whenever Data is inserted in DataBase.

Please add this line right after data insertion code.

MessageBox.Show("Record save successfully !");

 OleDbConnection con = new OleDbConnection(ConnectionString);
 con.Open();
str = "insert into student(id,name) values (@id,@name)";
com = new OleDbCommand(str, con);
com.Parameters.AddWithValue("@sid", textBox1.Text);
com.Parameters.AddWithValue("@sname", textBox2.Text);
int affectedRows = com.ExecuteNonQuery();
con.Close();
MessageBox.Show(affectedRows + ":::Records Successfuly Inserted");

OleDbConnection con = new OleDbConnection(ConnectionString);

                con.Open();

                str = "insert into student(id,name) values (@id,@name)";

                com = new OleDbCommand(str, con);

                com.Parameters.AddWithValue("@sid", textBox1.Text);

                com.Parameters.AddWithValue("@sname", textBox2.Text);

                com.ExecuteNonQuery();

                con.Close();

                MessageBox.Show("Records Successfuly Inserted");