DNN 7 Error custom Module

Question

I'm trying to code my own DNN 7 module, to learn.

I'm actually following this tutorial.

I've created the module, and it show this error.

Error: HelloWorld is currently unavailable.
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()
--- End of inner exception stack trace ---

Here my ascx code

<%@ Control Language="C#"
    AutoEventWireup="true"
    CodeFile="HelloWorld.ascx.cs"
    Inherits="DesktopModules.HelloWorld"
%>
<h1>Hello Dude</h1>
<p>Some text here</p>

And my ascx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using DotNetNuke.UI.Modules;

namespace MyModules
{
    public partial class HelloWorld : ModuleUserControlBase
    {

    }
}

Searching on google link me to the following code, but I'm not sure this is the solution (and don't know how to use it properly)

override protected void OnInit(EventArgs e)
    {
        InitializeComponent();
        base.OnInit(e);
    }
    private void InitializeComponent()
    {
        this.Load += new System.EventHandler(this.Page_Load);
    }

Take a look at this link. I,m using this template now for years to create modules and it works great. dnntcmsbuild.codeplex.com/documentation — JK84

Fix It Scotty Fix It Scotty · Accepted Answer · 2015-02-07T00:50:49

Your ascx has Inherits="DesktopModules.HelloWorld", but your namespace and class in your ascx.cs is "MyModules.HelloWorld". Also, I would inherit from DotNetNuke.Entities.Modules.PortalModuleBase instead of ModuleUserControlBase.

DNN 7 Error custom Module

2 Answers