コード例 #1
0
        protected static EwsTask CreateSampleEwsTask(bool titleOnly = false)
        {
            var title    = $"task-{DateTime.Now.ToString("T")}-{Guid.NewGuid()}";
            var due      = DateTime.Now.AddDays(5);
            var reminder = due.AddDays(-3);
            var start    = due.AddDays(-2);
            var ordinal  = due.AddDays(-1);
            var complete = due.AddDays(-0.5);

            var ewsTask = new EwsTask
            {
                Subject = title,
            };

            if (!titleOnly)
            {
                ewsTask.Importance    = EwsImportance.High;
                ewsTask.BodyType      = EwsBodyType.Text;
                ewsTask.Body          = "body content";
                ewsTask.DueDate       = due;
                ewsTask.ReminderDate  = reminder;
                ewsTask.ReminderIsSet = true;
                ewsTask.StartDate     = start;
                ewsTask.OrdinalDate   = ordinal;
                ewsTask.Categories    = new[] { "category1", "category2" };
                ewsTask.Complete      = true;
                ewsTask.CompleteDate  = complete;
            }

            return(ewsTask);
        }
コード例 #2
0
ファイル: EwsModelHelper.cs プロジェクト: yaneshtyagi/2day
        public static ExchangeTask BuildExchangeTask(this EwsTask ewsTask)
        {
            var id = string.Format("{0}{1}{2}", ewsTask.Id, ChangeKeySeparator, ewsTask.ChangeKey);

            if (ewsTask.Type == EwsItemType.Item)
            {
                id = ItemPrefix + id;
            }

            var exchangeTask = new ExchangeTask
            {
                Id         = id,
                Subject    = ewsTask.Subject,
                Start      = ewsTask.StartDate,
                Due        = ewsTask.DueDate,
                Completed  = ewsTask.CompleteDate,
                Importance = (ExchangeTaskImportance)(int)ewsTask.Importance,
            };

            if (ewsTask.ReminderIsSet && ewsTask.ReminderDate.HasValue && ewsTask.ReminderDate.Value != DateTime.MinValue)
            {
                exchangeTask.Alarm = ewsTask.ReminderDate;
            }

            if (!string.IsNullOrWhiteSpace(ewsTask.Body))
            {
                exchangeTask.Note = ewsTask.Body;
            }

            if (ewsTask.Categories != null && ewsTask.Categories.Length > 0)
            {
                exchangeTask.Category = ewsTask.Categories[0];
            }

            if (ewsTask.Recurrence != null && ewsTask.Recurrence.RecurrenceType != ExchangeRecurrencePattern.None)
            {
                exchangeTask.IsRecurring    = true;
                exchangeTask.DayOfMonth     = ewsTask.Recurrence.DayOfMonth;
                exchangeTask.DayOfWeekIndex = ewsTask.Recurrence.DayOfWeekIndex;
                exchangeTask.DaysOfWeek     = ewsTask.Recurrence.DaysOfWeek;
                exchangeTask.Interval       = ewsTask.Recurrence.Interval;
                exchangeTask.Month          = ewsTask.Recurrence.Month;
                exchangeTask.RecurrenceType = ewsTask.Recurrence.RecurrenceType;
            }

            return(exchangeTask);
        }
コード例 #3
0
ファイル: EwsBasicTest.cs プロジェクト: yaneshtyagi/2day
        public async Task Create_timezone_handling()
        {
            var due = DateTime.Now.Date;

            due = due.AddHours(23).AddMinutes(59); // 11:59PM

            var ewsTask = new EwsTask
            {
                Subject = "task" + DateTime.Now.ToString("T"),
                DueDate = due
            };

            await this.server.CreateItemAsync(ewsTask);

            var task = await this.server.GetTask(ewsTask.Subject, this.folderIdentifiers.TaskFolderIdentifier);

            Assert.IsTrue(task.DueDate.HasValue);
            Assert.AreEqual(ewsTask.DueDate.Value.Date, task.DueDate.Value.Date);
        }
コード例 #4
0
        public async Task Update_clear_categories()
        {
            var ewsTask = new EwsTask
            {
                Subject    = "task" + DateTime.Now.ToString("T"),
                Categories = new [] { "category1", "category2" }
            };

            await this.server.CreateItemAsync(ewsTask);

            var task = await this.server.GetTask(ewsTask.Subject, this.folderIdentifiers.TaskFolderIdentifier);

            task.Categories = null;
            task.Changes    = EwsFields.Categories;

            await this.server.UpdateItemsAsync(new[] { task });

            task = await this.server.GetTask(ewsTask.Subject, this.folderIdentifiers.TaskFolderIdentifier);

            Assert.AreEqual(0, task.Categories.Length);
        }
コード例 #5
0
        public async Task Update_clear_body()
        {
            var ewsTask = new EwsTask
            {
                Subject  = "task" + DateTime.Now.ToString("T"),
                BodyType = EwsBodyType.Text,
                Body     = "test body"
            };

            await this.server.CreateItemAsync(ewsTask);

            var task = await this.server.GetTask(ewsTask.Subject, this.folderIdentifiers.TaskFolderIdentifier);

            task.Body    = null;
            task.Changes = EwsFields.Body;

            await this.server.UpdateItemsAsync(new[] { task });

            task = await this.server.GetTask(ewsTask.Subject, this.folderIdentifiers.TaskFolderIdentifier);

            Assert.IsTrue(string.IsNullOrEmpty(task.Body));
        }
コード例 #6
0
        public async Task Update_clear_start_date()
        {
            var start = DateTime.Now.Date;

            var ewsTask = new EwsTask
            {
                Subject   = "task" + DateTime.Now.ToString("T"),
                StartDate = start
            };

            await this.server.CreateItemAsync(ewsTask);

            var task = await this.server.GetTask(ewsTask.Subject, this.folderIdentifiers.TaskFolderIdentifier);

            task.StartDate = null;
            task.Changes   = EwsFields.StartDate;

            await this.server.UpdateItemsAsync(new[] { task });

            task = await this.server.GetTask(ewsTask.Subject, this.folderIdentifiers.TaskFolderIdentifier);

            Assert.IsNull(task.StartDate);
        }
コード例 #7
0
        public async Task Update_percent_complete()
        {
            var ewsTask = new EwsTask
            {
                Subject         = "task" + DateTime.Now.ToString("T"),
                PercentComplete = 0.3
            };

            await this.server.CreateItemAsync(ewsTask);

            var task = await this.server.GetTask(ewsTask.Subject, this.folderIdentifiers.TaskFolderIdentifier);

            Assert.AreEqual(ewsTask.PercentComplete, task.PercentComplete);

            task.PercentComplete = 0.6;
            task.Changes         = EwsFields.PercentComplete;

            await this.server.UpdateItemAsync(task);

            var newTask = await this.server.GetTask(ewsTask.Subject, this.folderIdentifiers.TaskFolderIdentifier);

            Assert.AreEqual(task.PercentComplete, newTask.PercentComplete);
        }
コード例 #8
0
ファイル: FlagedItemsHelper.cs プロジェクト: yaneshtyagi/2day
        public async Task <EwsTask> CreateFlaggedItem(string subject)
        {
            // setup
            var createResult = await this.server.CreateEmailAsync(EwsKnownFolderIdentifiers.Inbox, subject, "world", "*****@*****.**");

            Assert.IsNotNull(createResult);

            this.searchFolderIdentifier = await this.service.EnsureSearchFolderAsync(this.server);

            Assert.IsNotNull(this.searchFolderIdentifier);

            var ewsTask = new EwsTask
            {
                Type = EwsItemType.Item,

                Id                    = createResult.Identifiers[0].Id,
                ChangeKey             = createResult.Identifiers[0].ChangeKey,
                ParentFolderId        = createResult.Identifiers[0].ParentFolderId,
                ParentFolderChangeKey = createResult.Identifiers[0].ParentFolderChangeKey,

                DueDate    = DateTime.Now.Date,
                Categories = new[] { "cat1", "cat2 " },
                Changes    = EwsFields.DueDate | EwsFields.Categories
            };

            // act
            var updateResult = await this.server.UpdateItemAsync(ewsTask);

            // check
            Assert.IsNotNull(updateResult);
            Assert.AreEqual(1, updateResult.Identifiers.Count);
            Assert.AreEqual(ewsTask.Id, updateResult.Identifiers[0].Id);

            ewsTask.ChangeKey = updateResult.Identifiers[0].ChangeKey;

            return(ewsTask);
        }
コード例 #9
0
        public async Task Update_clear_reminder_date()
        {
            var reminder = DateTime.Now.Date;

            var ewsTask = new EwsTask
            {
                Subject       = "task" + DateTime.Now.ToString("T"),
                ReminderDate  = reminder,
                ReminderIsSet = true
            };

            await this.server.CreateItemAsync(ewsTask);

            var task = await this.server.GetTask(ewsTask.Subject, this.folderIdentifiers.TaskFolderIdentifier);

            task.ReminderIsSet = false;
            task.Changes       = EwsFields.Reminder;

            await this.server.UpdateItemsAsync(new[] { task });

            task = await this.server.GetTask(ewsTask.Subject, this.folderIdentifiers.TaskFolderIdentifier);

            Assert.IsFalse(task.ReminderIsSet);
        }
コード例 #10
0
ファイル: EwsBasicTest.cs プロジェクト: yaneshtyagi/2day
        public async Task Delete_task()
        {
            var ewsTask = CreateSampleEwsTask();

            await this.server.CreateItemAsync(ewsTask);

            var itemIdentifiers = await this.server.EnumerateFolderContentAsync(this.folderIdentifiers.TaskFolderIdentifier);

            Assert.IsNotNull(itemIdentifiers, "itemIdentifiers != null");

            var tasks = await this.server.DownloadFolderContentAsync(itemIdentifiers, EwsItemType.Task);

            Assert.IsNotNull(tasks, "tasks != null");

            var task = tasks.FirstOrDefault(t => t.Subject == ewsTask.Subject);

            Assert.IsNotNull(task, "task != null");

            await this.server.DeleteItemsAsync(new[] { itemIdentifiers.First(i => i.Id == task.Id) });

            EwsTask value = await this.server.GetTask(ewsTask.Subject, this.folderIdentifiers.TaskFolderIdentifier);

            Assert.IsNull(value, "value != null");
        }
コード例 #11
0
ファイル: EwsModelHelper.cs プロジェクト: yaneshtyagi/2day
        public static EwsTask BuildEwsTask(this ExchangeTask exchangeTask)
        {
            var ewsTask = new EwsTask
            {
                Subject      = exchangeTask.Subject,
                Categories   = new[] { exchangeTask.Category },
                StartDate    = exchangeTask.Start,
                CompleteDate = exchangeTask.Completed,
                Importance   = (EwsImportance)(int)exchangeTask.Importance
            };

            if (exchangeTask.Due.HasValue)
            {
                ewsTask.DueDate = exchangeTask.Due.Value.Date;
            }

            if (exchangeTask.Alarm.HasValue)
            {
                ewsTask.ReminderDate  = exchangeTask.Alarm;
                ewsTask.ReminderIsSet = true;
            }

            if (!string.IsNullOrWhiteSpace(exchangeTask.Note))
            {
                ewsTask.Body     = exchangeTask.Note;
                ewsTask.BodyType = exchangeTask.Note.HasHtml() ? EwsBodyType.HTML : EwsBodyType.Text;
            }

            if (!exchangeTask.Properties.HasValue)
            {
                throw new NotSupportedException("Task has no properties set");
            }

            if (exchangeTask.IsRecurring && exchangeTask.Due.HasValue)
            {
                var recurrence = new EwsRecurrence
                {
                    RecurrenceType = exchangeTask.RecurrenceType,
                    Interval       = exchangeTask.Interval,
                    DayOfMonth     = exchangeTask.DayOfMonth,
                    DayOfWeekIndex = exchangeTask.DayOfWeekIndex,
                    DaysOfWeek     = exchangeTask.DaysOfWeek,
                    Month          = exchangeTask.Month,
                };

                if (!exchangeTask.Start.HasValue)
                {
                    recurrence.StartDate = exchangeTask.Due.Value;
                }
                else
                {
                    recurrence.StartDate = exchangeTask.Start.Value;
                }

                ewsTask.Recurrence = recurrence;
            }

            if (exchangeTask.Properties.Value.HasFlag(ExchangeTaskProperties.Title))
            {
                ewsTask.Changes |= EwsFields.Subject;
            }
            if (exchangeTask.Properties.Value.HasFlag(ExchangeTaskProperties.Folder))
            {
                ewsTask.Changes |= EwsFields.Categories;
            }
            if (exchangeTask.Properties.Value.HasFlag(ExchangeTaskProperties.Due))
            {
                ewsTask.Changes |= EwsFields.DueDate;
            }
            if (exchangeTask.Properties.Value.HasFlag(ExchangeTaskProperties.Start))
            {
                ewsTask.Changes |= EwsFields.StartDate;
            }
            if (exchangeTask.Properties.Value.HasFlag(ExchangeTaskProperties.Completed))
            {
                ewsTask.Changes |= EwsFields.CompleteDate;
            }
            if (exchangeTask.Properties.Value.HasFlag(ExchangeTaskProperties.Priority))
            {
                ewsTask.Changes |= EwsFields.Importance;
            }
            if (exchangeTask.Properties.Value.HasFlag(ExchangeTaskProperties.RepeatFrom))
            {
                ewsTask.Changes |= EwsFields.Recurrence;
            }
            if (exchangeTask.Properties.Value.HasFlag(ExchangeTaskProperties.Alarm))
            {
                ewsTask.Changes |= EwsFields.Reminder;
            }
            if (exchangeTask.Properties.Value.HasFlag(ExchangeTaskProperties.Note))
            {
                ewsTask.Changes |= EwsFields.Body;
            }

            if (!string.IsNullOrWhiteSpace(exchangeTask.Id))
            {
                string id = exchangeTask.Id;
                if (exchangeTask.Id.StartsWith(ItemPrefix))
                {
                    id           = id.Replace(ItemPrefix, string.Empty);
                    ewsTask.Type = EwsItemType.Item;
                }

                var identifier = GetEwsItemIdentifier(id);
                ewsTask.Id        = identifier.Id;
                ewsTask.ChangeKey = identifier.ChangeKey;
            }

            return(ewsTask);
        }
コード例 #12
0
        // field ordering available at: http://msdn.microsoft.com/en-us/library/aa563930(v=EXCHG.140).aspx
        private static string GetXmlForTask(EwsTask task)
        {
            const string template = "<t:Task>{0}</t:Task>";

            var builder = new StringBuilder();

            builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.Subject, task.Subject));

            if (!string.IsNullOrEmpty(task.Body))
            {
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.Body, task.Body, new EwsAttributes {
                    { BodyTypeAttribute, task.BodyType.ToString() }
                }));
            }

            if (task.Categories != null && task.Categories.Length > 0)
            {
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.Categories, task.Categories));
            }

            builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.Importance, task.Importance));

            if (task.ReminderDate != null)
            {
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.ReminderDueBy, task.ReminderDate.Value, DateTimeKind.Utc));
            }
            builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.ReminderIsSet, task.ReminderIsSet));

            if (task.OrdinalDate != null)
            {
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TagSubject, task.Subject));
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TagSubjectPrefix, string.Empty));
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.NormalizedSubject, task.Subject));
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TaskOrdinalDate, task.OrdinalDate.Value, DateTimeKind.Utc));
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TaskSubOrdinalDate, task.SubOrdinalDate));
            }

            if (task.StartDate != null)
            {
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.CommonStart, task.StartDate.Value, DateTimeKind.Utc));
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TaskStartDate, task.StartDate.Value, DateTimeKind.Local));
            }

            if (task.DueDate != null)
            {
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.CommonEnd, task.DueDate.Value, DateTimeKind.Utc));
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TaskDueDate, task.DueDate.Value, DateTimeKind.Local));
            }

            builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TaskIsRecurring, task.IsRecurring));
            builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TaskIsDeadOccurence, task.IsDeadOccurence));
            if (task.IsRecurring && !task.IsDeadOccurence)
            {
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TagIconIndex, (int)EwsTagIconIndex.UnassignedRecurringTask));
            }
            else
            {
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TagIconIndex, (int)EwsTagIconIndex.Task));
            }

            if (task.CompleteDate != null)
            {
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TaskPercentComplete, 1.0));
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TaskComplete, true));
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TaskCompletedDate, task.CompleteDate.Value, DateTimeKind.Utc));
                builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TaskStatus, EwsTaskStatus.Completed));
            }
            else
            {
                if (task.Recurrence != null)
                {
                    builder.AppendLine(EwsTaskSchema.BuildSetFieldRawValueXml(EwsFieldUri.Recurrence, task.Recurrence.BuildXml()));
                }

                if (task.PercentComplete > 0)
                {
                    builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TaskPercentComplete, task.PercentComplete));
                    builder.AppendLine(EwsTaskSchema.BuildSetFieldValueXml(EwsFieldUri.TaskStatus, EwsTaskStatus.InProgress));
                }
            }

            string xml = string.Format(template, builder.ToString());

            return(xml);
        }
コード例 #13
0
ファイル: EwsSyncServer.cs プロジェクト: webOSpinn/2day
 public async Task <UpdateItemsResult> UpdateItemAsync(EwsTask task)
 {
     return(await this.UpdateItemsAsync(new[] { task }));
 }
コード例 #14
0
ファイル: EwsSyncServer.cs プロジェクト: webOSpinn/2day
 public async Task <CreateItemsResult> CreateItemAsync(EwsTask task, EwsFolderIdentifier parentFolder = null)
 {
     return(await this.CreateItemAsync(new[] { task }, parentFolder));
 }
コード例 #15
0
        public EwsTask BuildTask()
        {
            var task = new EwsTask();

            foreach (var property in this.properties)
            {
                int    propertyId = property.Item1;
                string value      = property.Item2;

                var definition = EwsTaskSchema.GetPropertyDefinition(propertyId);

                switch (definition.FieldUri)
                {
                case EwsFieldUri.TaskTitle:
                    task.Subject = EwsXmlHelper.ReadStringAs <string>(value);
                    break;

                case EwsFieldUri.TaskDueDate:
                    task.DueDate = EwsXmlHelper.ReadStringAs <DateTime>(value);
                    break;

                case EwsFieldUri.TaskStartDate:
                    task.StartDate = EwsXmlHelper.ReadStringAs <DateTime>(value);
                    break;

                case EwsFieldUri.TaskOrdinalDate:
                    task.OrdinalDate = EwsXmlHelper.ReadStringAs <DateTime>(value);
                    break;

                case EwsFieldUri.TaskSubOrdinalDate:
                    task.SubOrdinalDate = EwsXmlHelper.ReadStringAs <string>(value);
                    break;

                case EwsFieldUri.TaskCompletedDate:
                    task.CompleteDate = EwsXmlHelper.ReadStringAs <DateTime>(value);
                    break;

                case EwsFieldUri.TaskComplete:
                    task.Complete = EwsXmlHelper.ReadStringAs <bool>(value);
                    break;

                case EwsFieldUri.TaskIsRecurring:
                    task.IsRecurring = EwsXmlHelper.ReadStringAs <bool>(value);
                    break;

                case EwsFieldUri.TaskIsDeadOccurence:
                    task.IsDeadOccurence = EwsXmlHelper.ReadStringAs <bool>(value);
                    break;

                case EwsFieldUri.TaskPercentComplete:
                    task.PercentComplete = EwsXmlHelper.ReadStringAs <double>(value);
                    break;

                case EwsFieldUri.TaskStatus:
                    task.Status = EwsXmlHelper.ReadStringAs <EwsTaskStatus>(value);
                    break;

                default:
                    Debugger.Break();
                    break;
                }
            }

            return(task);
        }
コード例 #16
0
        private string GetTaskXmlChanges(EwsTask task)
        {
            var builder = new StringBuilder();

            if (task.Changes.HasFlag(EwsFields.Body) && task.Type == EwsItemType.Task)
            {
                if (!string.IsNullOrEmpty(task.Body))
                {
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.Body, task.Body, new EwsAttributes {
                        { "BodyType", task.BodyType.ToString() }
                    }));
                }
                else
                {
                    builder.AppendLine(EwsTaskSchema.BuildClearFieldValueXml(EwsFieldUri.Body));
                }
            }

            if (task.Changes.HasFlag(EwsFields.Categories))
            {
                if (task.Categories != null)
                {
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.Categories, task.Categories));
                }
                else
                {
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.Categories, new string[0]));
                }
            }

            if (task.Changes.HasFlag(EwsFields.Importance))
            {
                builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.Importance, task.Importance));
            }

            if (task.Changes.HasFlag(EwsFields.Subject))
            {
                builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TagSubject, task.Subject));
                builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TagSubjectPrefix, string.Empty));
                builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.NormalizedSubject, task.Subject));

                if (task.Type == EwsItemType.Item)
                {
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskTitle, task.Subject));
                }
            }

            if (task.Changes.HasFlag(EwsFields.StartDate))
            {
                if (task.StartDate.HasValue)
                {
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.CommonStart, task.StartDate.Value, DateTimeKind.Utc));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskStartDate, task.StartDate.Value, DateTimeKind.Local));
                }
                else
                {
                    builder.AppendLine(EwsTaskSchema.BuildClearFieldValueXml(EwsFieldUri.CommonStart));
                    builder.AppendLine(EwsTaskSchema.BuildClearFieldValueXml(EwsFieldUri.TaskStartDate));
                }
            }

            if (task.Changes.HasFlag(EwsFields.DueDate))
            {
                if (task.DueDate.HasValue)
                {
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.CommonEnd, task.DueDate.Value, DateTimeKind.Utc));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskDueDate, task.DueDate.Value, DateTimeKind.Local));
                }
                else
                {
                    builder.AppendLine(EwsTaskSchema.BuildClearFieldValueXml(EwsFieldUri.CommonEnd));
                    builder.AppendLine(EwsTaskSchema.BuildClearFieldValueXml(EwsFieldUri.TaskDueDate));
                }
            }

            bool hasSetPercentComplete = false;

            if (task.Type == EwsItemType.Task)
            {
                if (task.Changes.HasFlag(EwsFields.CompleteDate))
                {
                    if (task.CompleteDate.HasValue)
                    {
                        builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.FlagRequest, string.Empty));
                        builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskCompletedDate, task.CompleteDate.Value, DateTimeKind.Utc));
                        builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskComplete, true));
                        builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskStatus, EwsTaskStatus.Completed));
                        builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskPercentComplete, 1.0));

                        hasSetPercentComplete = true;
                    }
                    else
                    {
                        builder.AppendLine(EwsTaskSchema.BuildClearFieldValueXml(EwsFieldUri.TaskCompletedDate));
                        builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskComplete, false));
                        builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskStatus, EwsTaskStatus.NotStarted));
                    }
                }
            }
            else
            {
                if (task.CompleteDate.HasValue)
                {
                    //string str = task.CompleteDate.ToExchangeString(DateTimeKind.Utc);
                    //TagFlagStatus "Integer", 4240, (string)null, (object)MapiConstants.PidLidTaskStatusEnum.Completed));
                    //TagFlagCompleteTime "SystemTime", 4241, (string)null, (object)str));
                    //ReplyRequested "Boolean", 3095, (string)null, (object)false));
                    //ResponseRequested "Boolean", 99, (string)null, (object)false));
                    //TagToDoItemFlags "Integer", 3627, (string)null, (object)1));
                    //TaskCompletedDate "SystemTime", 33039, "00062003-0000-0000-C000-000000000046", (object)str));
                    //TaskComplete "Boolean", 33052, "00062003-0000-0000-C000-000000000046", (object)true));
                    //TaskStatus "Integer", 33025, "00062003-0000-0000-C000-000000000046", (object)MapiConstants.PidLidTaskStatusEnum.Completed));
                    //TaskPercentComplete "Double", 33026, "00062003-0000-0000-C000-000000000046", (object)1f));
                    //ReminderSet "Boolean", 34051, "00062008-0000-0000-C000-000000000046", (object)false));
                    //TagFollowupIcon "Integer", 4245, (string)null));

                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TagFlagStatus, (int)PidLidTaskStatusEnum.Completed));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TagFlagCompleteTime, task.CompleteDate.Value, DateTimeKind.Utc));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.ReplyRequested, false));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.ResponseRequested, false));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TagToDoItemFlags, 1));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskCompletedDate, task.CompleteDate.Value, DateTimeKind.Utc));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskComplete, true));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskStatus, (int)PidLidTaskStatusEnum.Completed));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskPercentComplete, 1.0));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.ReminderSet, false));
                    builder.AppendLine(EwsTaskSchema.BuildClearFieldValueXml(EwsFieldUri.TagFollowupIcon));
                }
                else
                {
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TagFlagStatus, (int)PidTagTaskStatusEnum.Flagged));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.ReplyRequested, true));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.ResponseRequested, true));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TagToDoItemFlags, 1));
                    builder.AppendLine(EwsTaskSchema.BuildClearFieldValueXml(EwsFieldUri.TagFlagCompleteTime));
                    builder.AppendLine(EwsTaskSchema.BuildClearFieldValueXml(EwsFieldUri.TaskCompletedDate));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskComplete, false));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskStatus, (int)PidLidTaskStatusEnum.InProgress));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskPercentComplete, 0.0));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.ReminderSet, false));
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TagFollowupIcon, (int)PidTagFollowupIconEnum.Followup));
                }
            }

            if (task.Changes.HasFlag(EwsFields.PercentComplete) && !hasSetPercentComplete)
            {
                builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskPercentComplete, task.PercentComplete));
            }

            if (task.Changes.HasFlag(EwsFields.Recurrence) && task.Type == EwsItemType.Task)
            {
                builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskIsRecurring, task.IsRecurring));

                if (task.Recurrence != null)
                {
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldRawValueXml(EwsFieldUri.Recurrence, task.Recurrence.BuildXml()));
                }
                else
                {
                    builder.AppendLine(EwsTaskSchema.BuildClearFieldValueXml(EwsFieldUri.Recurrence));
                }

                builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TaskIsDeadOccurence, task.IsDeadOccurence));

                if (task.IsRecurring && !task.IsDeadOccurence)
                {
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TagIconIndex, (int)EwsTagIconIndex.UnassignedRecurringTask));
                }
                else
                {
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.TagIconIndex, (int)EwsTagIconIndex.Task));
                }
            }

            if (task.Changes.HasFlag(EwsFields.Reminder))
            {
                if (task.ReminderDate.HasValue)
                {
                    builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.ReminderDueBy, task.ReminderDate.Value, DateTimeKind.Utc));
                }
                // note: delete is not supported for the ReminderDueBy field

                builder.AppendLine(EwsTaskSchema.BuildUpdateFieldValueXml(EwsFieldUri.ReminderIsSet, task.ReminderIsSet, false));
            }

            var content = builder.ToString();

            return(content);
        }