Outlook 2013 VSTO - Get calendar selected range + callback

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How can I retrieve the displayed date range in an Outlook Calendar? For example, when I open the week view of the current week, I need to know in code that the current calendar displays the range from 2015-09-21 to 2015-09-27.

Let's assume I have a reference to the calendar as a MAPIFolder object. I found out that this object has a CurrentView member with several promising properties. But DisplayedDates contains no items, Filter is empty and SelectedEndTime / SelectedStartTime both points to 4501-01-01, i.e. no date set. So what am I doing wrong? And yes, at the time of evaluating this object, the calendar view in Outlook is open and active.

Second question: After it is possible to get the current display range, is there a callback or event which I can consume that is fired when the display range changes?

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1 Answers

1
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Try to use the CurrentView property of the Explorer class, not folder. To obtain a View object for the view of the current Explorer, use Explorer.CurrentView instead of the CurrentView property of the current Folder object returned by Explorer.CurrentFolder.

Here is what MSDN states:

The View object allows you to create customizable views that allow you to better sort, group and ultimately view data of all different types. There are a variety of different view types that provide the flexibility needed to create and maintain your important data.

  • The table view type (olTableView) allows you to view data in a simple field-based table.
  • The Calendar view type (olCalendarView) allows you to view data in a calendar format.
  • The card view type (olCardView) allows you to view data in a series of cards. Each card displays the information contained by the item and can be sorted.
  • The icon view type (olIconView) allows you to view data as icons, similar to a Windows folder or explorer.
  • The timeline view type (olTimelineView) allows you to view data as it is received in a customizable linear time line.

Views are defined and customized using the View object's XML property. The XML property allows you to create and set a customized XML schema that defines the various features of a view.

After it is possible to get the current display range, is there a callback or event which I can consume that is fired when the display range changes?

No, the Outlook object model doesn't provide such events. However, you may try to handle the BeforeViewSwitch event of the Explorer class which is fired before the explorer changes to a new view, either as a result of user action or through program code.