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      How to: Implement Custom Conversion of a TimeSpan Value
      How to: Set Custom Working Days
      How to: Add Custom Holidays
      How to: Load Holidays from the Outlook.hol file
      How to: Load Holidays from an XML file
      How to: Show Night Shift as One Day in the DayView
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How to: Load Holidays from the Outlook.hol file

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A complete sample project is available in the DevExpress Code Examples database at http://www.devexpress.com/example=E4129.

If you have Microsoft® Outlook installed on your machine, it may be useful to obtain the holidays list, which is shipped with its installation. For example, if you've installed Microsoft Office 2013 English (United States) in default location, this file can be found in the following path:

C:\Program Files\Microsoft Office\Office15\1033\Outlook.hol

This file contains all known holidays for several countries (marked in square brackets and called as locations) in the following format:

...
[United States] 168
Christmas Day,2006/12/25
Christmas Day,2007/12/25
Christmas Day,2008/12/25
Christmas Day,2009/12/25
Christmas Day,2010/12/25
Christmas Day,2011/12/25
Christmas Day,2012/12/25
Christmas Eve,2006/12/24
...

XtraScheduler provides the supplementary OutlookHolidaysLoader class, which is intended to load holidays from the Outlook.hol file via its FromFile or FromStream methods. So, you may obtain a collection of days which are treated as holidays for the specified country, and add these holidays to the SchedulerControl.WorkDays collection of a Scheduler Control.

The code below demonstrates how this can be done.

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