Quintiq file version 2.0 
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#parent: #root 
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Method EventsOfOneCalendarSelected ( 
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  structured[LibCal_Participation] participations_i 
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) as Boolean id:Method_LibCal_swEventsAndOccurrences_EventsOfOneCalendarSelected 
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{ 
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  #keys: '[131094.1.605785848]' 
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  Body: 
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  [* 
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    feedback    := FeedbackObject::LocalFeedback(); 
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    calendars   := selectset( participations_i, Elements.Calendar, calendar, true, true ).Unique(); 
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    oneSelected := calendars.Size() = 1; 
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    if( not feedback.CheckHard( oneSelected ) ) 
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    { 
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      feedback.AddHard( Translations::Event_MoreThanOneCalendar() ); 
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    } 
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    return oneSelected; 
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  *] 
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} 
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