Reply to thread

Message: [QUOTE="ah lun, post: 14087812, member: 109835"] I am currently working on EWS to have some integration of our company application with Exchange 2010. I am using EWS to create appoinment to Exchange 2010 and it works fine; but recently I tried to add some custom/extended property when creating the appointment, below is my code to add the extended property. [CODE] Dim customField As New ExtendedPropertyDefinition(DefaultExtendedPropertySet.PublicStrings, "MyCustomField", MapiPropertyType.String) appointment.SetExtendedProperty(customField, "CustomFieldValue") [/CODE] The above codes able to create the custom field to the appointment. Now here is my problem. When I open up the appointment in Outlook that I created and go to "Developer > Design This Form", then "All Fields" tab, I only see the custom field I created in the "User-defined field in folder" but not in "User-defined field in this item". I also making an Outlook Add-in to react to the custom field that I created using the EWS when user opens up the appointment in Outlook, when I tried to look for the custom field, couldn't find the custom field, because the custom field is created in "User-defined field in folder" but not in "User-defined field in this item". This is the codes in the Outlook Add-in and will execute when user opens an apointment in Outlook. But because the custom field is not in "in this item", the .Find() returns Nothing. [CODE] Dim appt As Outlook.AppointmentItem appt = TryCast(inspector.CurrentItem, Outlook.AppointmentItem) If appt.UserProperties.Find("MyCustomField") Is Nothing Then 'Some actions Else 'Some actions End If [/CODE] What I want to achieve is to create an appointment with the custom field (extended property) using EWS, and then read the custom field (extended property) in Outlook Add-in when user open the appointment in Outlook. The value that i assigned to the custom field using EWS is shown in the "User-defined field in folder". How to I retrieve the value using Outlook Add-in? Maybe I can retrieve the value and add the custom field to the item? Thanks. [/QUOTE]

Verification