Dynamics CRM: How to get Business Closure Dates in Plugin

using System;
using System.Linq;
using HayerCrmPackage.Plugins.Entities;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Client;
using Microsoft.Xrm.Sdk.Query;

namespace HayerCrmPackage.Plugins
{
    public class PreCaseCreate : Plugin
    {
        public PreCaseCreate()
            : base(typeof(PreCaseCreate))
        {
            base.RegisteredEvents.Add(new Tuple<int, string, string, Action<LocalPluginContext>>(20, "Create", "incident", new Action<LocalPluginContext>(ExecutePreCaseCreate)));            
        }

        protected void ExecutePreCaseCreate(LocalPluginContext localContext)
        {
            if (localContext == null)
            {
                throw new ArgumentNullException("localContext");                
            }

            var pluginContext = localContext.PluginExecutionContext;
            var service = localContext.OrganizationService;
            var context = new OrganizationServiceContext(service);

            // Get Organization Business Closure Calendar Id
            var organization = service.Retrieve("organization", context.OrganizationId, new ColumnSet("businessclosurecalendarid"));

            var query = new QueryExpression("calendar")
            {
                ColumnSet = new ColumnSet(true),
                Criteria = new FilterExpression()
            };

            // Add condition to get Get Calander where CalanderId is equal to Organization's businessclosurecalendarid
            query.Criteria.AddCondition(new ConditionExpression("calendarid", ConditionOperator.Equal, organization["businessclosurecalendarid"].ToString()));

            // Get Calendar
            var businessClosureCalendar = service.RetrieveMultiple(query).Entities[0];

            // Get the Calendar rules
            IEnumerable<Entity> calanderRules = businessClosureCalendar != null ? businessClosureCalendar.GetAttributeValue<EntityCollection>("calendarrules").Entities : null;
        }
    }
}

To know how to add working days by calculating business closure dates and weekends, please check my blog Here.

Happy Coding

P. S. Hayer
(ਪ੍ਰੇਮਜੀਤ ਸਿੰਘ ਹੇਰ)

Please check my other (non-CRM) blog here: Programming Blogs

Dynamics CRM: How to Add working days by calculating business closure and weekends

Recently I received a requirement to set the Incident Auto Closure date to 'CreatedOn' + 7 working days. To add working days to 'CreatedOn' date, we need to exclude all the weekend and business closures. I came up with the following solution to achieve the required outcome.
Add the following Class to your project to calculate working day and business closures.

using System;
using System.Collections.Generic;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Query;

namespace HayerCrmPackage.Plugins
{
    public class AddWorkingDaysClass
    {
        /// 

        /// Add working days to a specific date by calculating Business Closure and weekends
        /// 
        public static DateTime AddWorkingAndBusinessClosureDays(DateTime specificDate, int workingDaysToAdd, 
            IOrganizationService service, IPluginExecutionContext context)
        {
            var currentDate = specificDate;
            var businessClosures = GetBusinessClosureCalendarRules(context, service);

            // Calculate the working days by taking out the weekends
            int completeWeeks = workingDaysToAdd / 5;
            DateTime date = specificDate.AddDays(completeWeeks * 7);
            workingDaysToAdd = workingDaysToAdd % 5;
            for (int i = 0; i < workingDaysToAdd; i++)
            {
                date = date.AddDays(1);
                while (!IsWorkingDayOfWeek(date))
                {
                    date = date.AddDays(1);
                }
            }

            // Calculate the working days by taking out Business Closures
            for (var i = currentDate; i <= date; i = i.AddDays(1))
            {
                if (i.DayOfWeek == DayOfWeek.Saturday || i.DayOfWeek == DayOfWeek.Sunday)
                    continue;

                foreach (var closure in businessClosures)
                {
                    var startDate = (DateTime)closure["effectiveintervalstart"];
                    var endDate = (DateTime)closure["effectiveintervalend"];
                    var range = new DateRange(startDate, endDate);

                    if (range.Includes(i))
                    {
                        date = date.AddDays(1);

                        if (date.DayOfWeek == DayOfWeek.Saturday)
                        {
                            date = date.AddDays(2);
                            i = i.AddDays(1);
                        }
                        else if (date.DayOfWeek == DayOfWeek.Sunday)
                        {
                            date = date.AddDays(1);
                        }
                    }
                }
            }
            return date;
        }

        /// 

        /// Get Business Closure Calendar Rules
        /// 
        private static IEnumerable<Entity> GetBusinessClosureCalendarRules(IPluginExecutionContext context,
            IOrganizationService service)
        {
            // Get Organization Business Closure Calendar Id
            var organization = service.Retrieve("organization", context.OrganizationId, new ColumnSet("businessclosurecalendarid"));

            var query = new QueryExpression("calendar")
            {
                ColumnSet = new ColumnSet(true),
                Criteria = new FilterExpression()
            };

            // Add condition to get Get Calander where CalanderId is equal to Organization's businessclosurecalendarid
            query.Criteria.AddCondition(new ConditionExpression("calendarid", ConditionOperator.Equal, organization["businessclosurecalendarid"].ToString()));

            // Get Calendar
            var businessClosureCalendar = service.RetrieveMultiple(query).Entities[0];

            // Return the Calendar rules
            return businessClosureCalendar != null ? businessClosureCalendar.GetAttributeValue<EntityCollection>("calendarrules").Entities : null;
        }

        private static bool IsWorkingDayOfWeek(DateTime date)
        {
            var day = date.DayOfWeek;
            return day != DayOfWeek.Saturday && day != DayOfWeek.Sunday;
        }

        public interface IRange<T>
        {
            T Start { get; }
            T End { get; }
            bool Includes(T value);
        }

        public class DateRange : IRange<DateTime>
        {
            public DateRange(DateTime start, DateTime end)
            {
                Start = start;
                End = end;
            }

            public DateTime Start { get; private set; }
            public DateTime End { get; private set; }

            public bool Includes(DateTime value)
            {
                return (Start <= value) && (value < End);
            }
        }
    }
}

To consume above class in your plugin, use the following code:

using System;
using System.Linq;
using HayerCrmPackage.Plugins.Entities;
using Microsoft.Xrm.Sdk;
using Microsoft.Xrm.Sdk.Client;
using Microsoft.Xrm.Sdk.Query;

namespace HayerCrmPackage.Plugins
{
    public class PreCaseCreate : Plugin
    {
        public PreCaseCreate()
            : base(typeof(PreCaseCreate))
        {
            base.RegisteredEvents.Add(new Tuple<int, string, string, Action<LocalPluginContext>>(20, "Create", "incident", new Action<LocalPluginContext>(ExecutePreCaseCreate)));            
        }

        protected void ExecutePreCaseCreate(LocalPluginContext localContext)
        {
            if (localContext == null)
            {
                throw new ArgumentNullException("localContext");                
            }

            var pluginContext = localContext.PluginExecutionContext;
            var service = localContext.OrganizationService;
            var context = new OrganizationServiceContext(service);

            var targetEntity = (pluginContext.InputParameters != null && pluginContext.InputParameters.Contains("Target"))
            ? (Entity)pluginContext.InputParameters["Target"]
            : null;

            // Converting Entity to Incident
            var incident = (targetEntity != null && targetEntity.LogicalName == Incident.EntityLogicalName) ? targetEntity.ToEntity<Incident>() : null;
            
            // If you want to update the number of working days to add, change the value of 2nd parameter below
            incident.new_AutoClosureDate = AddWorkingDaysClass.AddWorkingAndBusinessClosureDays(DateTime.Now, 7, service,
                        pluginContext);
        }
    }
}

Happy Coding

P. S. Hayer
(ਪ੍ਰੇਮਜੀਤ ਸਿੰਘ ਹੇਰ)

Ref:
 1. Adding Working Week Days to a Specific Date
 2. Check if Date Time is in Date Range

Please check my other (non-CRM) blog here: Programming Blogs