Can't add info to database

SqlCommand cmd = new SqlCommand("sp_insertDelivery", conn);

cmd.CommandType = CommandType.StoredProcedure;

cmd.Parameters.AddWithValue("@SlotID", "1");

cmd.Parameters.AddWithValue("@CustID", textBoxCustNo.Text);

cmd.Parameters.AddWithValue("DeliveryDate", dateTimePicker1.Value.Date.ToShortDateString());

cmd.Parameters.AddWithValue("Chilled", textBoxChilled.Text);

cmd.Parameters.AddWithValue("Frozen", textBoxFrozen.Text);

cmd.Parameters.AddWithValue("Ambient", textBoxAmbient.Text);

cmd.Parameters.AddWithValue("OrderDate", System.DateTime.Now);

cmd.Parameters.AddWithValue("Notes", textBoxNotes.Text);

try

int i = 0;

if (i >= 1)

toolStripStatusLabel1.Text = "Customer order has been made";

else

toolStripStatusLabel1.Text = "error";