Is there any way to run some code once when a module is created on a page? I need to add a row to my database each time an instance of my module is added to a page.

Another way which does not involve a core modification is to check (most likely in the module's Page_Load handler)  if the module Settings hashtable is empty or a particular ModuleSettings key returns a null or empty string. If so, since ModuleSettings are both key AND ModuleID dependent, you could then run your custom code and call ModuleController.UpdateModuleSetting to set the value of this key. Something like this:

If Settings.Count = 0 OrElse String.IsNullOrEmpty(Settings("Initialized")) Then

     'run custom code here

     Dim mc As New DotNetNuke.Entities.Modules.ModuleController
     mc.UpdateModuleSetting(Me.ModuleId, "Initialized", "True")
End If

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Bill, WESNet Designs
Team Lead - DotNetNuke Gallery Module Project (Not Actively Being Developed)
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