Hello,

I want to create a custom module . now I add category.ascx and when I click on Edit button it appear like ( add items and Add Category).

but when I click on Add Category it go me to the blank page.

below the code

public ModuleActionCollection ModuleActions
        {
            get
            {
                var actions = new ModuleActionCollection();
                    {
                        {
                           actions.Add(GetNextActionID(), Localization.GetString("EditModuleCtgry", LocalResourceFile), "", "", "",
                            EditUrl("category"), false, SecurityAccessLevel.Edit, true, false);

                          actions.Add(GetNextActionID(), Localization.GetString("EditModule", LocalResourceFile), "", "", "",
                         EditUrl(), false, SecurityAccessLevel.Edit, true, false);

                        }
                    };
                return actions;
            }
        }

 any Idea please !

I register Category.ascx in DNNProject.dnn

<moduleControl>
                    <controlKey>category</controlKey>
                    <controlSrc>DesktopModules/DNNProject/category.ascx</controlSrc>
                    <supportsPartialRendering>False</supportsPartialRendering>
                    <controlTitle>Edit Category</controlTitle>
                    <controlType>Edit</controlType>
                    <iconFile />
                    <helpUrl />
                    <viewOrder>0</viewOrder>
                    <supportsPopUps>True</supportsPopUps>
                  </moduleControl>

 but I got the following error....

Error: 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 ---

Are you in a development environment? Then you have to add the controls and keys manually (under Host :: Extensions), only writing them in the manifest is not enough. That is a more or less typical error while developing a module (and I ran into this at the beginning for several times).

Best wishes
Michael

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