Here is my $0.02:

90% of the time when developer's need two modules to communicate, they really need to just put the functionality in one module. If you want a person to choose a category on the left hand side of the page and then the category shows up on the right hand side, simply make a module that has that layout.

Most of the business solutions I do are simply one module that fills the page. The "layout" looks correct to the end user (for example a category selection on the side that stays in one place) but basically it's just a single module on the page.

You just need to ask yourself "what would I do if this were not a DotNetNuke module? How would I design this application?"

Basically I create separate modules when the functionality is separate. If the modules need to communicate tightly you don't want to create seperate modules.

Hi, I am having a challenge with implementing or rather getting Entities.Modules.Communications.IModuleListener to work.

I have the 2 modules BuyOnlineSideMenu and BuyOnlineViewProducts. I implemented the IModuleCommunicator in the BuyOnlineSideMenu module and the IModuleListener in BuyOnlineViewProducts. Please see the code below. The Sidemenu consists out a treeview, when a category is selected it causes a postback during which it raises the ModuleCommunication event. I have debugged upto this point and can confirm that it works upto here but the handler on the IModuleListener is never reached.

My events seem to be fired in the following order:

1. BuyOnlineSideMenu.Page_load
2. BuyOnlineViewProducts.Page_load
3. BuyOnlineSideMenu.TreeViewOnNodeClickEvent

Any help will be appreciated

Thanks

Wayne

    Partial Class BuyOnlineSideMenu
        Inherits BaseNetReadyModule
        Implements Entities.Modules.Communications.IModuleCommunicator

 ...

        Protected Sub TreeViewOnNodeClickEvent(ByVal sender As Object, ByVal e As Telerik.Web.UI.RadTreeNodeEventArgs)
            Dim Moduleargs As New Entities.Modules.Communications.ModuleCommunicationEventArgs

            Moduleargs.Sender = "BuyOnlineSideMenu.ascx"
            Moduleargs.Target = "BuyOnlineViewProducts.ascx"
            Moduleargs.Text = e.Node.Text
            Moduleargs.Type = "node clicked"
            Moduleargs.Value = e.Node.Value

            RaiseEvent ModuleCommunication(Me, Moduleargs)

        End Sub

    End Class

    Partial Class BuyOnlineViewProducts
        Inherits BaseNetReadyModule
        Implements Entities.Modules.Communications.IModuleListener

 ...

        Public Sub OnModuleCommunication(ByVal s As Object, ByVal e As DotNetNuke.Entities.Modules.Communications.ModuleCommunicationEventArgs) Implements      DotNetNuke.Entities.Modules.Communications.IModuleListener.OnModuleCommunication

            If e.Target = "BuyOnlineViewProducts.ascx" Then
                If CInt(e.Value) > 0 Then
                    _ProductCategoryID = e.Value
                    BuildProductDisplay()
                End If
            End If

        End Sub

    End Class