Im' using the calendar 3.03.08 on Dnn 4.6.2 and i've used it on separate dnn sites and on both, it installs, ok, lets me add events and then once i logout, it crashes.  I have to log back in and add a new record and it works again. then log out and it crashes.

I'm trying to display the calendar in list view and limit that to be the only view.

here's the crash error when logged out.

An error has occurred.
Error: Calendar is currently unavailable.

here's the detailed crash error when i log back in:

Error: Calendar 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.Modules.Events.SelectCategory.get_SelectedCategory() at DotNetNuke.Modules.Events.EventList.BindDataGrid() at DotNetNuke.Modules.Events.EventList.Page_Load(Object sender, EventArgs e) --- End of inner exception stack trace ---

Any idea what needs to happen to fix this?

Thanks.

The issue is probably caused by the way the selected event category is stored as cookie. If you don't use categories, you can disable category select as a workaround (in the settings of the module instance).

A code fix has been published by Dan Slage in thread Events Module 03.03.08 Beta, but I haven't tried it yet.

Ok... I think I may have finally found a fix for this, although I can't exactly replicate the problem I have been having.

In Dan Slage's fix, he has the following:

            Get
                If _SelectedCategory Is Nothing Then
                    Dim objCookie As HttpCookie = Request.Cookies("DNNEvents")
                    If objCookie Is Nothing Then
                        _SelectedCategory = ""
                    Else
                        Me.SelectedCategory = objCookie.Values("Cat" & ModuleId.ToString)
                    End If
                End If
                Return _SelectedCategory
            End Get

The problem is that sometimes objCookie.Values("Cat" & ModuleId.ToString) was returning Nothing, and thus returning _SelectedCategory as Nothing. This cause the events list to be 0 length, and, in the calendar view for me, the events wouldn't show up (because it found no events in category Nothing).

To "fix" it I changed it to this:

        Get
                If _SelectedCategory Is Nothing Then
                    Dim objCookie As HttpCookie = Request.Cookies("DNNEvents")
                    If objCookie Is Nothing Then
                        _SelectedCategory = ""
                    Else
                        Me.SelectedCategory = objCookie.Values("Cat" & ModuleId.ToString)
                        If _SelectedCategory Is Nothing Then
                            _SelectedCategory = ""
                        End If
                    End If
                End If
                Return _SelectedCategory
            End Get

That way if _SelectedCategory is STILL Nothing after looking for the cookie, it will be set to an empty string. However, once I added those three lines, the offending line (Me.SelectedCategory = objCookie.Values("Cat" & ModuleId.ToString)) is returning an empty string instead of Nothing... even after I delete all of my cookies in IE. So my fix isn't really doing anything now, but theoretically if Me.SelectedCategory is set to Nothing again, _SelectedCategory well be set to an empty string.

The real crux here is that somehow ModuleId is returning -1 instead of my real module id. Don't know how that is happening, but it is and it seems to be the REAL culprit here.

Hopefully this helps out all of you who have access to the source code to fix it.