[CLOSED] Direct Method Not firing.

[InHousePrint]

Hello again,
I have a commandColumn that generates message box with yes/no confirmation then fires directmethod in code behind if yes.
Code below was working in 1.7, now in v4 seems to have broken.
Given this a good couple of hours with no luck, the most I can get is the message box to fire but nothing on the yes button click.
Getting this error in the browser console if it helps. "Uncaught TypeError: Ext.Msg.Alert is not a function"

<script type="text/javascript">
        var deleteOrder = function (grid, command, record, row) {


            Ext.Msg.show({
                title: 'Delete Order? This cannot be undone!',
                msg: 'Deleting an order will delete all associated tickets, are you sure?',
                buttons: Ext.Msg.YESNO,
                icon: Ext.Msg.QUESTION,
                fn: function (btn) {

                    
                    if (btn == 'yes') {
                       
                        Ext.net.DirectMethods.DeleteOrder(id);
                        
                        
                    }

                }
            });



        }
</script>

 <ext:GridPanel ID="GridPanelOrderTickets" runat="server" StripeRows="true" Title="Orders"
            TrackMouseOver="true" Height="320" StoreID="SearchOrderStore" AutoScroll="true" Frame="true" Width="1400">
            <ColumnModel ID="ColumnModel2" runat="server">
                <Columns>
 <ext:CommandColumn runat="server" Width="80" Header="Delete">
                        <Commands>
                            <ext:GridCommand Icon="Delete">
                                <ToolTip Text="Delete Order" />
                            </ext:GridCommand>
                        </Commands>
                        <Listeners>
                            <Command Fn="deleteOrder" />
                        </Listeners>
                     
                    </ext:CommandColumn>
 </Columns>
            </ColumnModel>

 <DirectMethod()>
    Public Sub DeleteOrder(ByVal OrderID As Integer)
        Try
            'Do stuff in here with OrderID

        Catch ex As Exception
            ShowInfoBox("Error", ex.Message, MessageBox.Icon.ERROR, False, "")
        End Try
    End Sub