using Syncfusion.WinForms.Input;
using System;
using System.Windows.Forms;

public class CalendarForm : Form
{
    private SfCalendar calendar;
    private Label lblSelected;
    
    public CalendarForm()
    {
        // Create calendar
        calendar = new SfCalendar
        {
            Location = new Point(20, 20),
            Size = new Size(350, 300)
        };
        
        // Handle selection change
        calendar.SelectedDateChanged += Calendar_SelectedDateChanged;
        
        // Create label to show selected date
        lblSelected = new Label
        {
            Location = new Point(20, 330),
            Size = new Size(350, 30),
            Text = "No date selected"
        };
        
        this.Controls.Add(calendar);
        this.Controls.Add(lblSelected);
        this.Text = "Calendar Example";
        this.Size = new Size(400, 420);
    }
    
    private void Calendar_SelectedDateChanged(object sender, EventArgs e)
    {
        if (calendar.SelectedDate.HasValue)
        {
            lblSelected.Text = $"Selected: {calendar.SelectedDate.Value:D}";
        }
    }
}

Imports Syncfusion.WinForms.Input
Imports System
Imports System.Windows.Forms

Public Class CalendarForm
    Inherits Form
    
    Private calendar As SfCalendar
    Private lblSelected As Label
    
    Public Sub New()
        ' Create calendar
        calendar = New SfCalendar With {
            .Location = New Point(20, 20),
            .Size = New Size(350, 300)
        }
        
        ' Handle selection change
        AddHandler calendar.SelectedDateChanged, AddressOf Calendar_SelectedDateChanged
        
        ' Create label to show selected date
        lblSelected = New Label With {
            .Location = New Point(20, 330),
            .Size = New Size(350, 30),
            .Text = "No date selected"
        }
        
        Me.Controls.Add(calendar)
        Me.Controls.Add(lblSelected)
        Me.Text = "Calendar Example"
        Me.Size = New Size(400, 420)
    End Sub
    
    Private Sub Calendar_SelectedDateChanged(sender As Object, e As EventArgs)
        If calendar.SelectedDate.HasValue Then
            lblSelected.Text = $"Selected: {calendar.SelectedDate.Value:D}"
        End If
    End Sub
End Class

SfCalendar calendar = new SfCalendar();

// Restrict to future dates only (starting from today)
calendar.MinDate = DateTime.Today;
calendar.MaxDate = DateTime.Today.AddMonths(6);

// Set initial date
calendar.SelectedDate = DateTime.Today;

SfCalendar calendar = new SfCalendar();

// Add special dates (appointments, holidays, etc.)
calendar.SpecialDates.Add(new SpecialDate
{
    Date = new DateTime(2026, 3, 25),
    Description = "Team Meeting",
    IconImage = Properties.Resources.MeetingIcon
});

calendar.SpecialDates.Add(new SpecialDate
{
    Date = new DateTime(2026, 3, 28),
    Description = "Project Deadline",
    IconImage = Properties.Resources.DeadlineIcon
});

SfCalendar calendar = new SfCalendar();

// Enable multiple selection
calendar.AllowMultipleSelection = true;

// Get selected dates
calendar.SelectionChanged += (s, e) =>
{
    var dates = calendar.SelectedDates;
    MessageBox.Show($"Selected {dates.Count} dates");
};