Copy event data from a calendar list in SharePoint 2010

There is no copy item functionality in SharePoint,

There's a file that has a copy.

So we're going to copy the event data only with the program one one for the assignment.

Then how to assign value does not lose data?

The following procedure can be used for reference. There is no assignment for this field in the "Workspace" in this program. Because this is not required in my project calendar list.

oitem["title"] = p_item["title"];   
 oitem["Location"] = p_item["Location"];   
 oitem["File_x0020_type"] = p_item["File_x0020_type"];   
oitem["EventType"] = p_item["EventType"];   
 oitem["UID"] = p_item["UID"];   
 oitem["Recurrenceid"] = p_item["Recurrenceid"];   
 oitem["eventcanceled"] = p_item["eventcanceled"];   
 oitem["Duration"] = p_item["Duration"];   
 oitem["Recurrencedata"] = p_item["Recurrencedata"];   
 oitem["TimeZone"] = p_item["TimeZone"];   
 oitem["Xmltzone"] = p_item["Xmltzone"];   
 oitem["Masterseriesitemid"] = p_item["Masterseriesitemid"];   
 oitem["participants"] = p_item["participants"];   
 oitem["eventdate"] = p_item["Eventdate"];
oitem["EndDate"] = p_item["EndDate"];   
www.bianceng.cn oitem["Description"] = p_item["Description"];   
 oitem["falldayevent"] = p_item["Falldayevent"];   
 oitem["frecurrence"] = p_item["Frecurrence"];   
 oitem["Participantspicker"] = p_item["Participantspicker"];   
 oitem["Category"] = p_item["Category"]; oitem["FReebusy "] = p_item[" FreeBusy "];   
 oitem["overbook"] = p_item["Overbook"]; oitem["_moderationcomments"] = p_item["_moderationcomments"];

This should have some, to say that the event type of item is a complete copy.