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POUpdate Item has Recurrence in SharePoint
 

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    <p>I had an event list. I created a new item that has recurrence daily ( Start Time : 1/5/2010 12 : 00 AM and End Time : 5/30/2010 12:00 AM). I want to delete the item which has Start Time : 5/12/2010 12:00 AM but my application throwed exception.</p> <p>My code as below : </p> <pre><code> DateTime eventDate = DateTime.Parse(list.Fields.GetFieldByInternalName("EventDate").GetFieldValueAsHtml(DateTime.Parse(this.DateTimeOfItem).ToUniversalTime())); SPQuery pQuery = new SPQuery(); pQuery.ExpandRecurrence = true; pQuery.CalendarDate = eventDate.AddDays(-1); pQuery.Query = string.Format("&lt;OrderBy&gt;&lt;FieldRef Name=\"EventDate\"/&gt;&lt;/OrderBy&gt;&lt;Where&gt;&lt;And&gt;&lt;DateRangesOverlap&gt;&lt;FieldRef Name=\"EventDate\" /&gt;&lt;FieldRef Name=\"EndDate\" /&gt;&lt;FieldRef Name=\"RecurrenceID\" /&gt;&lt;Value Type=\"DateTime\"&gt;&lt;Week /&gt;&lt;/Value&gt;&lt;/DateRangesOverlap&gt;&lt;Eq&gt;&lt;FieldRef Name=\"ID\" /&gt;&lt;Value Type=\"Counter\"&gt;{0}&lt;/Value&gt;&lt;/Eq&gt;&lt;/And&gt;&lt;/Where&gt;", this.ID); SPListItemCollection itemColl = list.GetItems(pQuery); int index = 0; while (index &lt; itemColl.Count) { SPListItem item = itemColl[index]; if (DateTime.Parse(item["EventDate"].ToString()).CompareTo(eventDate) == 0) { web.AllowUnsafeUpdates = true; item["UID"] = Guid.NewGuid().ToString(); item["EventType"] = 3; item["RecurrenceID"] = eventDate; item["MasterSeriesItemID"] = this.ID; item["XMLTZone"] = null; item["RecurrenceData"] = "Every 1 day(s)"; item.Update(); list.Update(); web.AllowUnsafeUpdates = false; break; } index++; } </code></pre> <p>I do not know why I can not update this item. Please help me.</p> <p>Thanks </p> <p>PD.</p>
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