Getting Started with Windows Forms Calendar (SfCalendar)

2 Nov 202213 minutes to read

This section briefly describes how to create a new Windows Forms project in Visual Studio and add the WinForms Calendar (SfCalendar) control with its basic functionalities.

Assembly deployment

Refer to the Control Dependencies section to get the list of assemblies or details of NuGet package that needs to be added as reference to use the control in any application.

Refer to this documentation to find more details about installing NuGet packages in a Windows Forms application.

Adding the SfCalendar control via designer

The following steps describe how to create an WinForms Calendar (SfCalendar) control via designer.

  1. Create a new Windows Forms application in Visual Studio.

  2. Add the SfCalendar control to an application by dragging it from the toolbox to design view. The following dependent assemblies will be added automatically:

    • Syncfusion.Core.WinForms
    • Syncfusion.SfInput.WinForms
    • Syncfusion.Shared.Base

Drag and drop the sfcalendar to form

Adding the SfCalendar control via code

The following steps describe how to create an WinForms Calendar (SfCalendar) control programmatically:

  1. Create a C# or VB application via Visual Studio.

  2. Add the following assembly references to the project:

    • Syncfusion.Core.WinForms
    • Syncfusion.SfInput.WinForms
    • Syncfusion.Shared.Base
  3. Include the required namespaces.

using Syncfusion.WinForms.Input;
Imports Syncfusion.WinForms.Input
  1. Create an instance of the WinForms Calendar (SfCalendar) control instance, and then add it to the form.

SfCalendar calendar = new SfCalendar();
Dim calendar As SfCalendar = New SfCalendar

Select a date

At run time, a particular date should be focused or selected using the SelectedDate property. This property is also used to change the current date of SfCalendar.

calendar.SelectedDate = new System.DateTime(2019, 08, 12);
calendar.SelectedDate = New System.DateTime(2019, 08, 12)

Select the date in WF SfCalendar

Selection change event

The WinForms Calendar (SfCalendar) control notifies the date changes using the SelectionChanging and SelectionChanged events. You can use the NewValue and OldValue properties to get the old and new dates in the SelectionChanged event. In the SelectionChanging event, you can use the Cancel property in event argument to avoid the date changes or mentioned date in SfCalendar.

// Invoking selection changing event
calendar.SelectionChanging += Calendar_SelectionChanging;

// Invoking selection changed event
calendar.SelectionChanged += Calendar_SelectionChanged;

// Occurs before the selected date is changed in Calendar.
private void Calendar_SelectionChanging(Syncfusion.WinForms.Input.SfCalendar sender, Syncfusion.WinForms.Input.Events.SelectionChangingEventArgs e)
    var newDate = e.NewValue;
    if (newDate == new System.DateTime(2019,08,13))
        e.Cancel = true;            

// Occurs after the selected date is changed in Calendar.
private void Calendar_SelectionChanged(Syncfusion.WinForms.Input.SfCalendar sender, Syncfusion.WinForms.Input.Events.SelectionChangedEventArgs e)
    var newDate = e.NewValue;
    var oldDate = e.OldValue;
' Invoking selection changing event
Private calendar.SelectionChanging += AddressOf Calendar_SelectionChanging

' Invoking selection changed event
Private calendar.SelectionChanged += AddressOf Calendar_SelectionChanged

' Occurs before the selected date is changed in Calendar.
Private Sub Calendar_SelectionChanging(ByVal sender As Syncfusion.WinForms.Input.SfCalendar, ByVal e As Syncfusion.WinForms.Input.Events.SelectionChangingEventArgs)
	Dim newDate = e.NewValue
	If newDate Is New System.DateTime(2019,08,13) Then
		e.Cancel = True
	End If
End Sub

' Occurs after the selected date is changed in Calendar.
Private Sub Calendar_SelectionChanged(ByVal sender As Syncfusion.WinForms.Input.SfCalendar, ByVal e As Syncfusion.WinForms.Input.Events.SelectionChangedEventArgs)
	Dim newDate = e.NewValue
	Dim oldDate = e.OldValue
End Sub

Date range

The WinForms Calendar (SfCalendar) prevents users from selecting dates within specified minimum and maximum ranges. To specify a range, set the start date and end date to the MinDate and MaxDate properties, respectively.

// Setting the minimum and maximum dates

Syncfusion.WinForms.Input.SfCalendar calendar = new Syncfusion.WinForms.Input.SfCalendar();

calendar.SelectedDate = new DateTime(2018, 1, 17);
calendar.MinDate = new DateTime(2018, 1, 05);
calendar.MaxDate = new DateTime(2018, 1, 25);
' Setting the minimum and maximum dates

Dim calendar As Syncfusion.WinForms.Input.SfCalendar = New Syncfusion.WinForms.Input.SfCalendar

calendar.SelectedDate = New DateTime(2018, 1, 17)
calendar.MinDate = New DateTime(2018, 1, 5)
calendar.MaxDate = New DateTime(2018, 1, 25)

Windows Forms SfCalendar showing selected date with in range

Blackout dates

BlackoutDates refers the disabled dates that restrict users from selecting it. A date collection can be provided to set the BlackoutDates for this control.

//Setting the blackout dates

calendar.BlackoutDates.Add(new System.DateTime(2018, 1, 7));
calendar.BlackoutDates.Add(new System.DateTime(2018, 1, 14));
calendar.BlackoutDates.Add(new System.DateTime(2018, 1, 21));
calendar.BlackoutDates.Add(new System.DateTime(2018, 1, 6));
calendar.BlackoutDates.Add(new System.DateTime(2018, 1, 13));
calendar.BlackoutDates.Add(new System.DateTime(2018, 1, 20));
'Setting the Blackout Dates

calendar.BlackoutDates.Add(New System.DateTime(2018, 1, 7))
calendar.BlackoutDates.Add(New System.DateTime(2018, 1, 14))
calendar.BlackoutDates.Add(New System.DateTime(2018, 1, 21))
calendar.BlackoutDates.Add(New System.DateTime(2018, 1, 6))
calendar.BlackoutDates.Add(New System.DateTime(2018, 1, 13))
calendar.BlackoutDates.Add(New System.DateTime(2018, 1, 20))

Windows Forms SfCalendar showing BlackOutDates

Special dates

The WinForms Calendar (SfCalendar) allows you to highlight special dates with icons and descriptions. Special dates can be added to the calendar using the SpecialDates collection.

The following code sample demonstrates how to add special dates to the calendar.

SpecialDate specialDate1 = new SpecialDate();
List<SpecialDate> SpecialDates = new List<SpecialDate>();  
specialDate1.BackColor = System.Drawing.Color.White;
specialDate1.Font = new System.Drawing.Font("Segoe UI", 11.25F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
specialDate1.ForeColor = System.Drawing.Color.Magenta;
specialDate1.Image = Properties.Resources.icons_Womens_day;
specialDate1.Description = "Army Day";
specialDate1.ImageAlign = System.Drawing.ContentAlignment.MiddleCenter;
specialDate1.IsDateVisible = false;
specialDate1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
specialDate1.TextImageRelation = System.Windows.Forms.TextImageRelation.TextBeforeImage;
specialDate1.Value = new System.DateTime(2018, 1, 15);
calendar.SpecialDates = SpecialDates;
Dim specialDate1 As New SpecialDate()
Dim SpecialDates As New List(Of SpecialDate)()

specialDate1.BackColor = System.Drawing.Color.White
specialDate1.Font = New System.Drawing.Font("Segoe UI", 11.25F, System.Drawing.FontStyle.Italic, System.Drawing.GraphicsUnit.Point, (CByte(0)))
specialDate1.ForeColor = System.Drawing.Color.Magenta
specialDate1.Image = My.Resources.icons_Womens_day
specialDate1.Description = "Army Day"
specialDate1.ImageAlign = System.Drawing.ContentAlignment.MiddleCenter
specialDate1.IsDateVisible = False
specialDate1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter
specialDate1.TextImageRelation = System.Windows.Forms.TextImageRelation.TextBeforeImage
specialDate1.Value = New System.DateTime(2018, 1, 15)
calendar.SpecialDates = SpecialDates

Windows Forms SfCalendar showing special date

Allow multiple selection

The WinForms Calendar (SfCalendar) control allows you to select multiple dates by setting the AllowMultipleSelection property to true.

// Setting to Allow Multiple Selection
calendar.AllowMultipleSelection = true;
' Setting to Allow Multiple Selection
calendar.AllowMultipleSelection = True

Windows Forms SfCalendar showing multiple date selection

Configure first day of week

The first day of a week can be changed by setting the FirstDayOfWeek property.

//Setting the First Day Of Week
calendar.FirstDayOfWeek = DayOfWeek.Monday;
'Setting the First Day Of Week
Me.SfCalendar1.FirstDayOfWeek = DayOfWeek.Monday

First day of week

Configure to show week number

The week number of current week in a year can be shown in the calendar control by setting the ShowWeekNumber property to true as follows:

// Setting the Minimum and Maximum date
calendar.ShowWeekNumber = true;
' Setting the Minimum and Maximum date
calendar.ShowWeekNumber = True

SfCalendar shows week number

Configure the calculation of week number based on culture

You can get the current week number in WinForms Calendar (SfCalendar) control by changing the CalendarWeekRule property value of date time format in CultureInfo. The default value of CalendarWeekRule property is FirstDay.

SfCalendar sfCalendar1 = new SfCalendar();
CultureInfo info = new CultureInfo("en-EN");
info.DateTimeFormat.CalendarWeekRule = CalendarWeekRule.FirstFullWeek;
sfCalendar1.Culture = info;
Dim sfCalendar1 As SfCalendar = New SfCalendar()
Dim info As CultureInfo = New CultureInfo("en-EN")
info.DateTimeFormat.CalendarWeekRule = CalendarWeekRule.FirstFullWeek
sfCalendar1.Culture = info