How do I have a WINFORMS datagridview column that has a button for some rows and is empty for others

//Setup grid
        private void SetupSavedOrderGrid()
        {
            this.dgvOrders.DefaultCellStyle = this.dgvOrders.AlternatingRowsDefaultCellStyle;
 
            DataGridViewTextBoxColumn account = new DataGridViewTextBoxColumn();
            account.Width = 220;
            account.Name = "Account";
            account.HeaderText = "Account";
            account.ValueType = typeof(String);
            account.ReadOnly = true;
            account.CellTemplate = new DataGridViewTextBoxCell();
            this.dgvOrders.Columns.Add(account);
 
            DataGridViewTextBoxColumn status = new DataGridViewTextBoxColumn();
            status.Width = 60;
            status.Name = "Status";
            status.HeaderText = "Status";
            status.ValueType = typeof(String);
            status.ReadOnly = true;
            status.CellTemplate = new DataGridViewTextBoxCell();
            this.dgvOrders.Columns.Add(status);
 
            DataGridViewTextBoxColumn date = new DataGridViewTextBoxColumn();
            date.Width = 120;
            date.Name = "Date";
            date.HeaderText = "Date";
            date.ValueType = typeof(DateTime);
            date.ReadOnly = true;
            date.CellTemplate = new DataGridViewTextBoxCell();
            this.dgvOrders.Columns.Add(date);
 
            DataGridViewTextBoxColumn offer = new DataGridViewTextBoxColumn();
            offer.Width = 180;
            offer.Name = "Offer";
            offer.HeaderText = "Offer";
            offer.ValueType = typeof(String);
            offer.ReadOnly = true;
            offer.CellTemplate = new DataGridViewTextBoxCell();
            this.dgvOrders.Columns.Add(offer);
 
            DataGridViewTextBoxColumn value = new DataGridViewTextBoxColumn();
            value.Width = 100;
            value.Name = "Value";
            value.HeaderText = "Order Value";
            value.ValueType = typeof(decimal);
            value.SortMode = DataGridViewColumnSortMode.NotSortable;
            value.ReadOnly = true;
            //value.DefaultCellStyle.Alignment = DataGridViewContentAlignment.MiddleRight;
            value.CellTemplate = new DataGridViewTextBoxCell();
            this.dgvOrders.Columns.Add(value);
 
            DataGridViewButtonColumn actions = new DataGridViewButtonColumn();
            actions.Width = 60;
            actions.FlatStyle = FlatStyle.Standard;
            actions.SortMode = DataGridViewColumnSortMode.NotSortable;
            actions.Name = "Actions";
            actions.HeaderText = "Actions";
            actions.CellTemplate = new DataGridViewButtonCell();
            this.dgvOrders.Columns.Add(actions);
 
            DataGridViewButtonColumn actions2 = new DataGridViewButtonColumn();
            actions2.Width = 60;
            actions2.FlatStyle = FlatStyle.Standard;
            actions2.SortMode = DataGridViewColumnSortMode.NotSortable;
            actions2.Name = "Actions2";
            actions2.HeaderText = string.Empty;
            actions2.CellTemplate = new DataGridViewButtonCell();
            this.dgvOrders.Columns.Add(actions2);
        }
 
//Populate grid
        private void PopulateSavedOrderGrid()
        {
            try
            {
                if (WeHaveSavedOrders())
                {
                    // Load saved orders into the grid
                    XmlDocument xdoc = new XmlDocument();
 
                    string accountName = string.Empty;
                    string status = string.Empty;
                    string date = string.Empty;
                    string offerName = string.Empty;
                    string orderValue = string.Empty;
                    
 
                    foreach (string filePath in Directory.GetFiles(SalesOrderingObjects.Common.SavedOrdersFolder, "*.xml"))
                    {                        
                        xdoc.Load(filePath);
                        XmlNode node = null;
 
                        //Account
                        node = xdoc.SelectSingleNode("Order/Account");
                        accountName = node == null ? string.Empty : node.Attributes.GetNamedItem("CompanyName").Value;
                        //Order status, date and value 
                        node = xdoc.SelectSingleNode("Order");
                        status = node == null ? string.Empty : node.Attributes.GetNamedItem("status").Value;
                        date = node == null ? string.Empty : node.Attributes.GetNamedItem("date").Value;
                        orderValue = node == null ? string.Empty : node.Attributes.GetNamedItem("totalValue").Value;
                        //Offer
                        node = xdoc.SelectSingleNode("Order/Promotion");
                        offerName = node == null ? string.Empty : node.Attributes.GetNamedItem("Name").Value;
 
//DEPENDING ON THIS CONDITION i WOULD LIKE ONLT EDIT FOR SAVED BUTTONS BUT SEND AND DELETE FOR OTHERS!!! 
                        if (status == Common.OrderStatus.Saved.ToString())
                            this.dgvOrders.Rows.Add(new object[] { accountName, status, date, offerName, decimal.Parse(orderValue).ToString("C"), "Edit", null });
                        else
                            this.dgvOrders.Rows.Add(new object[] { accountName, status, date, offerName, decimal.Parse(orderValue).ToString("C"), "Send", "Delete" });
                    }
                }
                else
                {
                    this.lblHeader.ForeColor = Color.Firebrick;
                    this.lblHeader.Text = "There are no saved or pending orders.  To start a new order, click on New Order button.";
                }
            }
            catch (Exception)
            {                
                throw;
            }
 
        }

                                  

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