Question

Is there a way to count the visible modules in a specific pane on from the current page context?

I know in theory I could write a joined sql statement, but DotNetNuke offers a variety of objects that support this kind of operation.

This is for a DNN 4 site, but any hint also for DNN 5 is greatly appreciated.

Even the information if there is any module in the pane at all would help.

Answer 1

You can get the modules in a tab with ModuleController.GetTabModules()

Imports DotNetNuke.Entities.Modules
...
Dim objModules As New ModuleController
Dim tabModules As Dictionary(Of Integer, ModuleInfo) = objModules.GetTabModules(TabId)

The keys of the dictionary are ModuleIDs and the values are ModuleInfo objects. You can also call the corresponding stored procedure GetTabModules to retrieve module data.

Now, ModuleInfo has a PaneName property that you would use to group the results, say, to another dictionary, and retrieve the counts from there:

    Dim result As New Dictionary(Of String, Integer)
    For Each tabModule In tabModules.Values
        If Not String.IsNullOrEmpty(tabModule.PaneName) Then
            result(tabModule.PaneName) += 1
        End If
    Next  

You probably also want to filter out the deleted modules:

    For Each tabModule In tabModules.Values _
        .Where(Function(x) Not String.IsNullOrEmpty(x.PaneName)) _
        .Where(Function(x) Not x.IsDeleted)

        result(tabModule.PaneName) += 1

    Next

A list of distinct PaneNames for a tab can be retrieved with the stored procedure GetTabPanes. The corresponding method in the 4.9.5 codebase is implemented in the DataProvider:

Dim dr As IDataReader = DotNetNuke.Data.DataProvider.Instance().GetTabPanes(TabId)