I am going through the above jump start and I am not sure if there is a typo at Step 12 - 4.:

Should this:

 // Retrieve the specified order and detail
   this.oOrderDetail.GetOrderDetail(this.OrderID);
   Session["dsOrderDetail"] = this.oOrderDetail.DataSet;

   Session["dsOrder"] = this.oOrder.DataSet;
   Session["dsOrderDetail"] = this.oOrderDetail.GetOrderDetail(this.OrderID);

Which did not retrieve the order.

Instead be:

        // Retrieve the specified order and detail
        this.oOrder.GetOrderByOrderID(this.OrderID);
        Session["dsOrder"] = this.oOrder.DataSet;
     
        this.oOrderDetail.GetOrderDetail(this.OrderID);
        Session["dsOrderDetail"] = this.oOrderDetail.DataSet;

Which retrieves the order but I am getting an error during save.

Is this correct for Step 12 - 7.?

/// <summary>
/// Save the Order header data
/// </summary>
private void btnSave_Click(object sender, System.EventArgs e)
{
   DataSet dsOrder = (DataSet)Session["dsOrder"];

   if (this.Save(this.oOrder, dsOrder, this.oOrder.TableName) ==
      mmSaveDataResult.RulesPassed)
   {
      Response.Redirect("CustomerOrders.aspx");
   }
}

Please advise, Ted