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HomeHomeGetting StartedGetting StartedNew to DNN Plat...New to DNN Plat...my first modulemy first module
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7/6/2011 7:59 AM
 
Heinrich Olwagen


Joined: 7/4/2011
Posts: 49
Hi i just finnished installing and setting up the source code i got from dnn's site on my pc. and every thing seems fine (no errors when building the source.

now im trying to create a module. it seems fine in VS2010 but as soon as i install/ create the module on dnn local site i get this.

most of the research i did tells me to set the controls to inherit from PortalModuleBase
how does one do this?
is this error related to the controls?

please assist

DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.UI.Modules.ModuleHost.LoadModuleControl() in C:\DNN Websites\DNN561Source\Library\UI\Modules\ModuleHost.vb
 
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7/6/2011 10:05 PM
 
William Severance


www.wesnetdesigns.com
Joined: 2/18/2005
Posts: 3253
As I recall the line of code throwing the error you posted involves a cast of type System.UI.Control to DotNetNuke.Entities.Modules.PortalModuleBase so if your module control does not inherit from PortalModule base, that could indeed be the problem.

If you are developing in Visual Basic your .ascx.vb control's code behind or code file should contain the following:

Partial Class MyModule
       Inherits DotNetNuke.Entities.Modules.PortalModuleBase

If you are developing in C# your .ascx.cs control's code behind or code file should contain the following:

public partial class MyModule : DotNetNuke.Entities.Modules.PortalModuleBase

Bill, WESNet Designs
Team Lead - DotNetNuke Gallery Module Project (Not Actively Being Developed)
Extensions Forge Projects . . .
Current: UserExport, ContentDeJour, ePrayer, DNN NewsTicker, By Invitation
Coming Soon: FRBO-For Rent By Owner
 
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7/7/2011 11:04 AM
 
Heinrich Olwagen


Joined: 7/4/2011
Posts: 49
Hay what do you know it works! Thx William!
 
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