Hi,

I created a little Module to set the XML_XmlSourceUrl in the Database for Module Instances, which can be choosen from a CheckBoxList. This works fine, but the XML Module only uses this "new" Values if I clear the cache of the Portal manually. Setting the Cache in Module-Settings to 0 does not "help".

Maybe anybody has an idea / solution how i can "force" the XML Module to reload this setting when it is changed or a page with an instance of the Module is loaded. Thank you for any help!

Stephan Schneider
Schneider-IT

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I think I know what happens:

1. URL of XML source as like all other settings are handled as ModuleSettings.
2. ModuleSettings is part of the DNN API, and, as result, it need to be treated as black box.
   
3. The only supported way to set a value inside ModuleController is:
   
   Dim mc as New DotNetNuke.Entities.Modules.ModuleController
   mc.UpdateModuleSetting(ModuleId, NameOfSetting, ValueOfSetting)
   
4. To retrieve a value, the API offers the following interface:
   
   Dim mc As New DotNetNuke.Entities.Modules.ModuleController
   Dim Settings As Hashtable = mc.GetModuleSettings(ModuleId)
   Return Settings(NameOfSetting)
   
   or, more simple inside a module
   
   value = me.Settings(NameOfSetting)
    
5. It doesn't matter how Settings are handled inside the black box. Things might change, everything behind is private.
6. There is a table ModuleSettings inside the DB. It is part of the DNN installation, but AS ANY OTHER Table, View or StoredProcedure inside that doesn't belong to YOUR module, it is not part of the API.
7. DNN itself caches the ModuleSettings reducing the number of database calls until one of the values gets updated.