SPCalendarView control, same events are displayed each month in a VisualWebPart UserControl.ascx.cs file

Question

I am creating a custom SharePoint Calendar to pull from multiple SharePoint Calendar Lists.

In the markup I have the following:

<SharePoint:SPCalendarView ID="EventsCalendar2" width="100%" runat="server"></SharePoint:SPCalendarView>

I bind it like this in page load after getting the site and list myItems is a SPListItemCollection:

EventsCalendar2.DataSource = MakeSchedule(myItems);
EventsCalendar2.DataBind(); 

The MakeSchedule(myItems) is the following:

private SPCalendarItemCollection MakeSchedule(SPListItemCollection myItems)
        {
            SPCalendarItemCollection items = new SPCalendarItemCollection(); 

            for (int i = 0; i < myItems.Count; i++)
            {
                SPListItem item = myItems[i];

                DateTime StartTime = Convert.ToDateTime(item["EventDate"]);
                DateTime EndTime = Convert.ToDateTime(item["EndDate"]);

                string Description = "";
                if (item["Description"] != null)
                    Description = item["Description"].ToString();

                string Location = "";
                if (item["Location"] != null)
                    Location = item["Location"].ToString(); 

                bool Recurrance = false;
                if (item["fRecurrence"] != null)
                    Recurrance = (bool)item["fRecurrence"];

                bool AllDayEvent = false;
                if (item["fAllDayEvent"] != null)
                    AllDayEvent = (bool)item["fAllDayEvent"];



                items.Add(
                    new SPCalendarItem()
                    {
                        ItemID = item["ID"].ToString(),
                        StartDate = StartTime,
                        EndDate = EndTime,
                        hasEndDate = true,
                        Title = item["Title"].ToString(),
                        Location = Location,
                        Description = Description,
                        IsAllDayEvent = AllDayEvent,
                        IsRecurrence = Recurrance,
                        CalendarType = (int)SPCalendarType.Gregorian
                    }


                    );
            }

            return items; 
        }

NOW I can't figure out why the events are being displayed in all of the months when they should only be displayed in the months specified by StartDate & EndDate. Any ideas on what I am doing wrong??

Could it be that the SPCalendarView control cannot be used in a VisualWebPart?

Answer 1

for starters, you are calculating start and end dates differently

  DateTime StartTime = Convert.ToDateTime(item["EventDate"]);
  DateTime EndTime   = Convert.ToDateTime(item["EndDate"]  ).Date;

You should also use Convert.ToBoolean() rather than casting it as x = (bool) object. I've seen the latter fail in strange ways and if that happens to be the case here, then you could be ending up with Recurrance being true when it shouldn't be.

Answer 2

had to set the SPCalendarView's V4Rendering property to false to get it working (EnableV4Rendering="false"). Of course this isn't the best solution as this removes some functionality added onto the Calendar from SharePoint 2007.

Other things I have come across in my research was that this is definitely a VisualWebPart issue in particular the UserControl. I will edit this answer with the link.

A solution offered by others is updating the SharePoint server with the December2011 cumulative update. I will try that tomorrow, but for now that is the temporary solution.

http://www.sharepointdevelopment.me/2012/03/harnessing-the-spcalendarview/

&& Yes the HotFix I applied fixed it, here is the link: http://support.microsoft.com/kb/2596998