How can Update table from data grid view using Oracle database

i have use  below the table

   ID PO                   NAME                 QTY
        ----- ----------------- -------------------- -------
         1 10                   Product1
         2 12                   Product2
         3 11                   Product3
         4 13                   Product4
         5 16                   Product5
         6 15                   Product6

and below the code use for load data to datagridview,

public static string connection = "Provider=OraOLEDB.Oracle.1;Data Source=xe;Password=654321;User ID=abc;unicode=true";
        OleDbConnection con = new OleDbConnection(connection);

private void Form1_Load(object sender, EventArgs e)
        {
            dataload();

        }
        private void dataload()
        {

            OleDbDataAdapter adp = new OleDbDataAdapter("Select id,name,qty from tblProduct", con);
            DataTable dt = new DataTable();
            adp.Fill(dt);
            dataGridView1.DataSource = dt;
            dataGridView1.Columns[0].Width = 50;
            dataGridView1.Columns[1].Width = 200;
        }

 i want to delete from here using mouse click

how can possible?