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          How to paint holiday cells with different color

          0

          Problem:
          How can I change the column color of specific dates? The goal is to mark the holiday with a different color than the weekdays.

          Solution:
          You should handle the CustomDrawTimeCell event, which enables time cells to be painted manually. The attached project illustrates how you can accomplish this task.

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          Select file
          • Form1.cs
          Select language
          • C#
          • VB.NET
          Select version
          • v2010 vol 2.3 - v2012 vol 1.2
          • v2007 vol 2.1 - v2010 vol 1.12
          using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using DevExpress.XtraScheduler;
using DevExpress.XtraScheduler.Drawing;
using DevExpress.Schedule;

namespace CustomDrawHolidayCells {
    public partial class Form1 : Form {
        public Form1() {
            InitializeComponent();

            AddHoliday(DateTime.Today);
        }
        private WorkDaysCollection Holidays { get { return schedulerControl1.WorkDays; } }

        private void btnAddHoliday_Click(object sender, EventArgs e) {
            DayIntervalCollection days = new DayIntervalCollection();
            days.Add(schedulerControl1.SelectedInterval);

            schedulerControl1.BeginUpdate();
            try {
                for (int i = 0; i < days.Count; i++)
                    AddHoliday(days[i].Start);
            } finally {
                schedulerControl1.EndUpdate();
            }
             
        }
        private void AddHoliday(DateTime holidayDate) {
            TimeInterval interval = new TimeInterval(holidayDate, TimeSpan.FromDays(1));
            if (!IsHoliday(interval))
                Holidays.AddHoliday(holidayDate, string.Format("Holiday-{0}", holidayDate.ToShortDateString()));
        }
        private bool IsHoliday(TimeInterval interval) {
            int count = Holidays.Count;
            for (int i = 0; i < count; i++) {
                Holiday holiday = Holidays[i] as Holiday;
                if (holiday != null) {
                    TimeInterval holidayInterval = new TimeInterval(holiday.Date, TimeSpan.FromDays(1));
                    if (holidayInterval.IntersectsWithExcludingBounds(interval))
                        return true;
                }
            }
            return false;
        }
        private void schedulerControl1_CustomDrawTimeCell(object sender, CustomDrawObjectEventArgs e) {
            SchedulerViewCellBase cell = e.ObjectInfo as SchedulerViewCellBase;
            if (cell != null && IsHoliday(cell.Interval)) {
                cell.Appearance.BackColor = Color.Tomato;
            }
        }

    }
}