We can get/set Extended MAPI Properties using Exchange Web Services for Exchange Server 2007/2010.
Here is sample code snippet to get value for CleanGlobalObjectID via GetItem call of Exchange Web Services:
NOTE: Following programming examples is for illustration only, without warranty either expressed or implied, including, but not limited to, the implied warranties of merchantability and/or fitness for a particular purpose. This sample code assumes that you are familiar with the programming language being demonstrated and the tools used to create and debug procedures.
private void fnGetCalItem()
{
// Form the GetItem request
GetItemType getRequest = new GetItemType();
// Define which item properties are returned in the response
ItemResponseShapeType itemProperties = new ItemResponseShapeType();
itemProperties.BaseShape = DefaultShapeNamesType.AllProperties;
// Add properties shape to request
getRequest.ItemShape = itemProperties;
// Set the itemID of the desired item to retrieve
ItemIdType id = new ItemIdType();
id.Id = itemID;
getRequest.ItemIds = new ItemIdType[] { id };
PathToExtendedFieldType[] pteft = new PathToExtendedFieldType[1];
pteft[0] = new PathToExtendedFieldType();
//Add CleanGlobalObjectID extended property
pteft[0].PropertyId = 35;
pteft[0].PropertyIdSpecified = true;
pteft[0].PropertySetId = "6ED8DA90-450B-101B-98DA-00AA003F1305" ;
pteft[0].PropertyType = MapiPropertyTypeType.Binary;
itemProperties.AdditionalProperties = pteft;
// Send the listing (find) request and get the response
GetItemResponseType getResp = binding.GetItem(getRequest);
// Get the response message
if (getResp.ResponseMessages.Items[0].ResponseClass == ResponseClassType.Success)
ItemInfoResponseMessageType iirmt = getResp.ResponseMessages.Items[0] as ItemInfoResponseMessageType;
itemGCOID = iirmt.Items.Items[0].ExtendedProperty[0].Item.ToString() ;
}
else
Console.WriteLine(getResp.ResponseMessages.Items[0]);
Articles referenced for the above sample code:
Hope this helps!
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