Add appointement via .net to exchange 2003?
Hi
I am basically trying to create an appointement into the exchange server and
somehow I am failing. Our exchange server is ssl secured, but I think I did
everything found on information here. I am still getting the error:
The remote server returned an error: (401) Unauthorized.
Here is the code. Please help anybody if possible. Thanks a lot for reading!
I found the code here:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/wss/wss/_esdk_creating_an_appointment_webdav.asp
' Variables
Dim strExchSvrName As String
Dim strMailbox As String
Dim strCalendarUri As String
Dim strApptItem As String
Dim strDomain As String
Dim strUserName As String
Dim strPassword As String
Dim strApptRequest As String
Dim strMailInfo As String
Dim strCalInfo As String
Dim strXMLNSInfo As String
Dim strHeaderInfo As String
Dim PROPPATCHRequest As System.Net.HttpWebRequest
Dim PROPPATCHResponse As System.Net.WebResponse
Dim MyCredentialCache As System.Net.CredentialCache
Dim bytes() As Byte
Dim PROPPATCHRequestStream As System.IO.Stream
Try
System.Net.ServicePointManager.CertificatePolicy = New MyPolicy
' Exchange server name
strExchSvrName = "webmail.bla.net"
' Mailbox folder name.
strMailbox = "user"
' Appointment item.
strApptItem = "testappointment.eml"
' URI of the user's calendar folder.
strCalendarUri = "https://" & strExchSvrName & "/exchange/" &
strMailbox & "/Calendar/"
' User name and password of appointment creator.
strUserName = "user"
strDomain = "domain"
strPassword = "pw"
' XML namespace info for the WebDAV request.
strXMLNSInfo = "xmlns:g=""DAV:"" " & _
"xmlns:e=""http://schemas.microsoft.com/exchange/"" " & _
"xmlns:mapi=""http://schemas.microsoft.com/mapi/"" " & _
"xmlns:mapit=""http://schemas.microsoft.com/mapi/proptag/"" "
& _
"xmlns:x=""xml:"" xmlns:cal=""urn:schemas:calendar:"" " & _
"xmlns:dt=""urn:uuid:c2f41010-65b3-11d1-a29f-00aa00c14882/""
" & _
"xmlns:header=""urn:schemas:mailheader:"" " & _
"xmlns:mail=""urn:schemas:httpmail:"""
' Set the appointment item properties. The reminder time is set
in seconds.
' To create an all-day meeting, set the dtstart/dtend range for
24 hours
' or more and set the alldayevent property to 1. See the
documentation
' on the properties in the urn:schemas:calendar: namespace for
more information.
strCalInfo = "<cal:location>meetappt Location</cal:location>" & _
"<cal:dtstart
dt:dt=""dateTime.tz"">2005-05-23T23:00:00.000Z</cal:dtstart>" & _
"<cal:dtend
dt:dt=""dateTime.tz"">2005-05-23T30:30:00.000Z</cal:dtend>" & _
"<cal:instancetype dt:dt=""int"">0</cal:instancetype>" & _
"<cal:busystatus>BUSY</cal:busystatus>" & _
"<cal:meetingstatus>CONFIRMED</cal:meetingstatus>" & _
"<cal:alldayevent dt:dt=""boolean"">0</cal:alldayevent>" & _
"<cal:responserequested
dt:dt=""boolean"">1</cal:responserequested>" & _
"<cal:reminderoffset dt:dt=""int"">900</cal:reminderoffset>"
' Set the required attendee of the appointment.
strHeaderInfo = "<header:to>" & strMailbox & "</header:to>"
' Set the subject of the appointment.
strMailInfo = "<mail:subject>Test Appointment
Subject</mail:subject>" & _
"<mail:htmldescription>Let's meet here</mail:htmldescription>"
' Build the XML body of the PROPPATCH request.
strApptRequest = "<?xml version=""1.0""?>" & _
"<g:propertyupdate " & strXMLNSInfo & ">" & _
"<g:set><g:prop>" & _
"<g:contentclass>urn:content-classes:appointment</g:contentclass>" & _
"<e:outlookmessageclass>IPM.Appointment</e:outlookmessageclass>" & _
strMailInfo & _
strCalInfo & _
strHeaderInfo & _
"<mapi:finvited dt:dt=""boolean"">1</mapi:finvited>" & _
"</g:prop></g:set>" & _
"</g:propertyupdate>"
' Create a new CredentialCache object and fill it with the network
' credentials required to access the server.
MyCredentialCache = New System.Net.CredentialCache
MyCredentialCache.Add(New System.Uri(strCalendarUri), _
"NTLM", _
New
System.Net.NetworkCredential(strUserName, strPassword, strDomain) _
)
' Create the HttpWebRequest object.
PROPPATCHRequest =
CType(System.Net.HttpWebRequest.Create(strCalendarUri & strApptItem), _
System.Net.HttpWebRequest)
' Add the network credentials to the request.
PROPPATCHRequest.Credentials = MyCredentialCache
' Specify the PROPPATCH method.
PROPPATCHRequest.Method = "PROPPATCH"
' Set the content type header.
PROPPATCHRequest.ContentType = "text/xml"
' Encode the body using UTF-8.
bytes = System.Text.Encoding.UTF8.GetBytes(strApptRequest)
' Set the content header length. This must be
' done before writing data to the request stream.
PROPPATCHRequest.ContentLength = bytes.Length
' Get a reference to the request stream.
PROPPATCHRequestStream = PROPPATCHRequest.GetRequestStream()
' Write the message body to the request stream.
PROPPATCHRequestStream.Write(bytes, 0, bytes.Length)
' Close the Stream object to release the connection
' for further use.
PROPPATCHRequestStream.Close()
' Create the appointment in the Calendar folder of the
' user's mailbox.
PROPPATCHResponse = CType(PROPPATCHRequest.GetResponse(),
System.Net.HttpWebResponse)
Response.Write("Appointment successfully created.")
' Clean up.
PROPPATCHResponse.Close()
Catch ex As Exception
' Catch any exceptions. Any error codes from the PROPPATCH
' or MOVE method requests on the server will be caught
' here, also.
Response.Write(ex.Message)
End Try
End Function
Please help if you guys can. Thanks in advance!
date: Wed, 3 Aug 2005 16:59:01 -0700
author: Vishal_7
