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How to: Change the Windows Forms MonthCalendar Control's Appearance
03/30/2017
.net-framework
dotnet-winforms
article
jsharp
MonthBackColor property
TitleForeColor property
examples [Windows Forms], calendar controls
TrailingForeColor property
TitleBackColor property
MonthCalendar control [Windows Forms], formatting display
d09b95c9-e108-4608-9b31-b9100c0677bf
17
dotnet-bot
dotnetcontent
wpickett

How to: Change the Windows Forms MonthCalendar Control's Appearance

The Windows Forms xref:System.Windows.Forms.MonthCalendar control allows you to customize the calendar's appearance in many ways. For example, you can set the color scheme and choose to display or hide week numbers and the current date.

To change the month calendar's color scheme

  • Set properties such as xref:System.Windows.Forms.MonthCalendar.TitleBackColor%2A, xref:System.Windows.Forms.MonthCalendar.TitleForeColor%2A and xref:System.Windows.Forms.MonthCalendar.TrailingForeColor%2A. The xref:System.Windows.Forms.MonthCalendar.TitleBackColor%2A property also determines the font color for the days of the week. The xref:System.Windows.Forms.MonthCalendar.TrailingForeColor%2A property determines the color of the dates that precede and follow the displayed month or months.

    MonthCalendar1.TitleBackColor = System.Drawing.Color.Blue  
    MonthCalendar1.TrailingForeColor = System.Drawing.Color.Red  
    MonthCalendar1.TitleForeColor = System.Drawing.Color.Yellow  
    monthCalendar1.TitleBackColor = System.Drawing.Color.Blue;  
    monthCalendar1.TrailingForeColor = System.Drawing.Color.Red;  
    monthCalendar1.TitleForeColor = System.Drawing.Color.Yellow;  
    monthCalendar1->TitleBackColor = System::Drawing::Color::Blue;  
    monthCalendar1->TrailingForeColor = System::Drawing::Color::Red;  
    monthCalendar1->TitleForeColor = System::Drawing::Color::Yellow;  

    [!NOTE] Starting with Windows Vista and depending on the theme, setting some properties might not change the appearance of the calendar. For example, if Windows is set to use the Aero theme, setting the xref:System.Windows.Forms.MonthCalendar.BackColor%2A, xref:System.Windows.Forms.MonthCalendar.TitleBackColor%2A, xref:System.Windows.Forms.MonthCalendar.TitleForeColor%2A, or xref:System.Windows.Forms.MonthCalendar.TrailingForeColor%2A properties has no effect. This is because an updated version of the calendar is rendered with an appearance that is derived at run time from the current operating system theme. If you want to use these properties and enable the earlier version of the calendar, you can disable visual styles for your application. Disabling visual styles might affect the appearance and behavior of other controls in your application. To disable visual styles in Visual Basic, open the Project Designer and uncheck the Enable XP visual styles check box. To disable visual styles in C#, open Program.cs and comment out Application.EnableVisualStyles();. For more information about visual styles, see How to: Enable Windows XP Visual Styles.

To display the current date at the bottom of the control

  • Set the xref:System.Windows.Forms.MonthCalendar.ShowToday%2A property to true. The example below toggles between displaying and omitting today's date when the form is double-clicked.

    Private Sub Form1_DoubleClick(ByVal sender As Object, _  
    ByVal e As System.EventArgs) Handles MyBase.DoubleClick  
       ' Toggle between True and False.  
       MonthCalendar1.ShowToday = Not MonthCalendar1.ShowToday  
    End Sub  
    private void Form1_DoubleClick(object sender, System.EventArgs e)  
    {  
       // Toggle between True and False.  
       monthCalendar1.ShowToday = !monthCalendar1.ShowToday;  
    }  
    private:  
       System::Void Form1_DoubleClick(System::Object ^  sender,  
          System::EventArgs ^  e)  
       {  
          // Toggle between True and False.  
          monthCalendar1->ShowToday = !monthCalendar1->ShowToday;  
       }  

    ([!INCLUDEcsprcs], [!INCLUDEvcprvc]) Place the following code in the form's constructor to register the event handler.

    this.DoubleClick += new System.EventHandler(this.Form1_DoubleClick);  
    this->DoubleClick += gcnew System::EventHandler(this,  
       &Form1::Form1_DoubleClick);  

To display week numbers

  • Set the xref:System.Windows.Forms.MonthCalendar.ShowWeekNumbers%2A property to true. You can set this property either in code or in the Properties window.

    Week numbers appear in a separate column to the left of the first day of the week.

    MonthCalendar1.ShowWeekNumbers = True  
    monthCalendar1.ShowWeekNumbers = true;  
    monthCalendar1->ShowWeekNumbers = true;  

See Also

MonthCalendar Control
How to: Select a Range of Dates in the Windows Forms MonthCalendar Control
How to: Display Specific Days in Bold with the Windows Forms MonthCalendar Control
How to: Display More than One Month in the Windows Forms MonthCalendar Control