Winform Datagridview cellclick error - Index was out of range

I have a simple data grid that contains a list of records from a SQLSERVER table. The data network fills up without any problem. I want to click on a row and load the relevant data into the textboxes I created next to it. So far, everything is so simple.

Here is my code for the cellclick event

    private void dataGridVieworderitems_CellClick(object sender, DataGridViewCellEventArgs e)
    {
        {
            //try
            //{
                //if (dataGridVieworderitems.SelectedRows.Count > 0) // make sure user select at least 1 row 
                {
                    string jobId = dataGridVieworderitems.SelectedRows[0].Cells[0].Value + string.Empty;
                    string standpack = dataGridVieworderitems.SelectedRows[0].Cells[1].Value + string.Empty;
                    string description = dataGridVieworderitems.SelectedRows[0].Cells[2].Value + string.Empty;
                    string price = dataGridVieworderitems.SelectedRows[0].Cells[3].Value + string.Empty;
                    string itemType = dataGridVieworderitems.SelectedRows[0].Cells[4].Value + string.Empty;
                    string notes = dataGridVieworderitems.SelectedRows[0].Cells[5].Value + string.Empty;

                    labelidvalue.Text = jobId;
                    labelstandpackvalue.Text = standpack;
                    labeldescriptionvalue.Text = description;
                    textBoxprice.Text = price;
                    labeltypevalue.Text = itemType;
                    textBoxnotes.Text = notes;
                }
            //}
            //catch (Exception)
            //{
            //    MessageBox.Show("something went wrong!");
            //}
        }
    }

      

        
        
        
      

    

I deliberately commented out the If statement and tried to block the block to generate an error. I am getting the following error.

The System.ArgumentOutOfRangeException was unhandled. HResult = -2146233086 Message = Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index ParamName = index .......

It is WINFORM and C # .. There is data in datagrid view. but it says the index is out of range. can anyone point me in the right direction?

This is how I fill the grid

    public DataTable GetStaffCurrentOrderItems()
    {
        try
        {
            DataTable dtstaffcurrentorderlist = new DataTable();

            string connString = System.Configuration.ConfigurationManager.ConnectionStrings["nav"].ConnectionString;
            using (SqlConnection con = new SqlConnection(connString))
            {
                using (SqlCommand cmd = new SqlCommand("select [ID],standpack as [Item], item_description as [Description], '$'+convert(varchar(5),price) as Price,item_type as [Item Type],notes as [Notes] from tbl_staff_orders_items", con))
                {
                    if (con.State == ConnectionState.Open)
                    {
                        con.Close();
                    }
                    con.Open();
                    SqlDataReader reader = cmd.ExecuteReader();
                    dtstaffcurrentorderlist.Load(reader);
                }
                con.Close();
            }
            return dtstaffcurrentorderlist;
        }
        catch (Exception)
        {
            return null;
        }
    }