sql insert records in two tables

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SQL-Server-2005

ASP.NET

, +

Hi,

Here I am using a code for submit button with the help of this button I want to insert records in two table
1.customer
2.order

Here insert records for customer by text box and product name using by drop down list and rate comes from database I insert quantity from text box on the basis of rate that will calculate and make total_amount and insert records in order table I am using following code.
This code updating only single table

protected void btnSubmit_Click(object sender, EventArgs e)
        {
            SqlConnection con=new SqlConnection(ConfigurationManager.AppSettings["connectionstring"].ToString());
            SqlCommand cmd;
            DataSet ds=new DataSet();
          
            try
            {
                cmd = new SqlCommand("insert into customer(customer_name,customer_phone,customer_address)values(@customer_name,@customer_phone,@customer_address)", con);
                //cmd.Parameters.Add("@product_name", SqlDbType.NVarChar).Value = DropDownList1.Items.ToString();
                cmd.Parameters.Add("@customer_name", SqlDbType.NVarChar).Value = txtName.Text;
                cmd.Parameters.Add("@customer_phone", SqlDbType.NVarChar).Value = TxtPhone.Text;
                cmd.Parameters.Add("@customer_address", SqlDbType.NVarChar).Value = txtAddress.Text;
                
                cmd = new SqlCommand("insert into product_order(product_name,product_quantity,product_amount)values(@product_name,@product_quantity,@product_amount)", con);
                cmd.Parameters.Add("@product_name", SqlDbType.NVarChar).Value = DropDownList1.SelectedItem.Text;
                cmd.Parameters.Add("@product_quantity", SqlDbType.NVarChar).Value = txtqty.Text;
                cmd.Parameters.Add("@product_amount", SqlDbType.NVarChar).Value = txtAmount.Text.ToString();
                con.Open();
                cmd.ExecuteNonQuery();
                Response.Write("yr records updated..");
                //da = new SqlDataAdapter("select * from product", con);
                //GridView1.DataSource = ds;
                //GridView1.DataBind();
                cmd.Dispose();
             }
            catch(Exception exe)
            {
                Response.Write(exe);
            }
          
            ds.Dispose();
            con.Close();
            
            
        }