---
title: Display Specific Days in Bold with MonthCalendar Control
ms.date: "03/30/2017"
dev_langs: 
  - "csharp"
  - "vb"
  - "cpp"
helpviewer_keywords: 
  - "calendars [Windows Forms], displaying dates in bold"
  - "examples [Windows Forms], calendar controls"
  - "GetDayBold event"
  - "MonthCalendar control [Windows Forms], dates displayed in bold"
ms.assetid: 8b20db5b-8118-4825-90e8-2c45c186ac7d
---
# How to: Display Specific Days in Bold with the Windows Forms MonthCalendar Control
The Windows Forms <xref:System.Windows.Forms.MonthCalendar> control can display days in bold type, either as singular dates or on a repeating basis. You might do this to draw attention to special dates, such as holidays and weekends.  
  
 Three properties control this feature. The <xref:System.Windows.Forms.MonthCalendar.BoldedDates%2A> property contains single dates. The <xref:System.Windows.Forms.MonthCalendar.AnnuallyBoldedDates%2A> property contains dates that appear in bold every year. The <xref:System.Windows.Forms.MonthCalendar.MonthlyBoldedDates%2A> property contains dates that appear in bold every month. Each of these properties contains an array of <xref:System.DateTime> objects. To add or remove a date from one of these lists, you must add or remove a <xref:System.DateTime> object.  
  
### To make a date appear in bold type  
  
1. Create the <xref:System.DateTime> objects.  
  
    ```vb  
    Dim myVacation1 As Date = New DateTime(2001, 6, 10)  
    Dim myVacation2 As Date = New DateTime(2001, 6, 17)  
    ```  
  
    ```csharp  
    DateTime myVacation1 = new DateTime(2001, 6, 10);  
    DateTime myVacation2 = new DateTime(2001, 6, 17);  
    ```  
  
    ```cpp  
    DateTime myVacation1 = DateTime(2001, 6, 10);  
    DateTime myVacation2 = DateTime(2001, 6, 17);  
    ```  
  
2. Make a single date bold by calling the <xref:System.Windows.Forms.MonthCalendar.AddBoldedDate%2A>, <xref:System.Windows.Forms.MonthCalendar.AddAnnuallyBoldedDate%2A>, or <xref:System.Windows.Forms.MonthCalendar.AddMonthlyBoldedDate%2A> method of the <xref:System.Windows.Forms.MonthCalendar> control.  
  
    ```vb  
    MonthCalendar1.AddBoldedDate(myVacation1)  
    MonthCalendar1.AddBoldedDate(myVacation2)  
    ```  
  
    ```csharp  
    monthCalendar1.AddBoldedDate(myVacation1);  
    monthCalendar1.AddBoldedDate(myVacation2);  
    ```  
  
    ```cpp  
    monthCalendar1->AddBoldedDate(myVacation1);  
    monthCalendar1->AddBoldedDate(myVacation2);  
    ```  
  
     –or–  
  
     Make a set of dates bold all at once by creating an array of <xref:System.DateTime> objects and assigning it to one of the properties.  
  
    ```vb  
    Dim VacationDates As DateTime() = {myVacation1, myVacation2}  
    MonthCalendar1.BoldedDates = VacationDates  
    ```  
  
    ```csharp  
    DateTime[] VacationDates = {myVacation1, myVacation2};  
    monthCalendar1.BoldedDates = VacationDates;  
    ```  
  
    ```cpp  
    Array<DateTime>^ VacationDates = {myVacation1, myVacation2};  
    monthCalendar1->BoldedDates = VacationDates;  
    ```  
  
### To make a date appear in the regular font  
  
1. Make a single bolded date appear in the regular font by calling the <xref:System.Windows.Forms.MonthCalendar.RemoveBoldedDate%2A>, <xref:System.Windows.Forms.MonthCalendar.RemoveAnnuallyBoldedDate%2A>, or <xref:System.Windows.Forms.MonthCalendar.RemoveMonthlyBoldedDate%2A> method.  
  
    ```vb  
    MonthCalendar1.RemoveBoldedDate(myVacation1)  
    MonthCalendar1.RemoveBoldedDate(myVacation2)  
    ```  
  
    ```csharp  
    monthCalendar1.RemoveBoldedDate(myVacation1);  
    monthCalendar1.RemoveBoldedDate(myVacation2);  
    ```  
  
    ```cpp  
    monthCalendar1->RemoveBoldedDate(myVacation1);  
    monthCalendar1->RemoveBoldedDate(myVacation2);  
    ```  
  
     –or–  
  
     Remove all the bolded dates from one of the three lists by calling the <xref:System.Windows.Forms.MonthCalendar.RemoveAllBoldedDates%2A>, <xref:System.Windows.Forms.MonthCalendar.RemoveAllAnnuallyBoldedDates%2A>, or <xref:System.Windows.Forms.MonthCalendar.RemoveAllMonthlyBoldedDates%2A> method.  
  
    ```vb  
    MonthCalendar1.RemoveAllBoldedDates()  
    ```  
  
    ```csharp  
    monthCalendar1.RemoveAllBoldedDates();  
    ```  
  
    ```cpp  
    monthCalendar1->RemoveAllBoldedDates();  
    ```  
  
2. Update the appearance of the font by calling the <xref:System.Windows.Forms.MonthCalendar.UpdateBoldedDates%2A> method.  
  
    ```vb  
    MonthCalendar1.UpdateBoldedDates()  
    ```  
  
    ```csharp  
    monthCalendar1.UpdateBoldedDates();  
    ```  
  
    ```cpp  
    monthCalendar1->UpdateBoldedDates();  
    ```  
  
## See also

- [MonthCalendar Control](monthcalendar-control-windows-forms.md)
- [How to: Select a Range of Dates in the Windows Forms MonthCalendar Control](how-to-select-a-range-of-dates-in-the-windows-forms-monthcalendar-control.md)
- [How to: Change the Windows Forms MonthCalendar Control's Appearance](how-to-change-monthcalendar-control-appearance.md)
- [How to: Display More than One Month in the Windows Forms MonthCalendar Control](display-more-than-one-month-wf-monthcalendar-control.md)