Display Values from grid view in to text boxes when row changing (Data binding)

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C#

C#4.0

I have a grid view in my project i have 5 columns in my data table
grid view displays these all data. i wan to display particular values in to 5 textboxes when user click each row . i have done some code but it shwws only 1 time. when user select another row it show error. need help here my code

 private void kryptonDataGridView1_CellContentClick(object sender, DataGridViewCellEventArgs e)
        {
            string cn = Connection.ReadPath();
            SqlConnection con = new SqlConnection(cn);
            SqlCommand com = new SqlCommand("select Name  from Rice", con);
            DataSet ds = new DataSet();
            SqlDataAdapter ad = new SqlDataAdapter(com);
            ad.Fill(ds,"Rice");

            kryptonTextBox1.DataBindings.Add("Text", ds, "Rice.Name");
kryptonTextBox1.DataBindings.Add("Text", ds, "Rice.Price");
        }