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Blixt
Newbie
Joined: 24 August 2009
Location: Sweden
Online Status: Offline
Posts: 10
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| Posted: 24 August 2009 at 7:43am | IP Logged
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Hi there, I have the following initialization
code:
Imap.LicenseKey =
Settings.Default.MailBeeLicenseKey;
ImapObject = new Imap();
ImapObject.MessageStatus += new
ImapMessageStatusEventHandler(MessageStatusUpd
ated);
ImapObject.SslMode =
Settings.Default.ImapSslMode;
ImapObject.Connect(Settings.Default.ImapHost,
Settings.Default.ImapPort);
ImapObject.Login(Settings.Default.ImapUser,
Settings.Default.ImapPassword);
ImapObject.ExamineFolder("Inbox");
When I run it, I get the exception "There is
already an operation in progress." on the
ExamineFolder line. The account being
connected to is a Gmail account. The error
worked at first but appeared after a code
refactoring, but the strange thing is that no
mail-related code was changed.
Does anyone know any reasons this error could
appear?
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Igor
AfterLogic Support
Joined: 24 June 2008
Location: United States
Online Status: Offline
Posts: 6167
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| Posted: 24 August 2009 at 7:54am | IP Logged
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Most probably, this has something to do with ImapMessageStatusEventHandler usage, looks like some IMAP server access operation is performed there at the moment when ExamineFolder command is executed. Try to remove that line of code temporarily and check if the issue persists.
--
Regards,
Igor, AfterLogic Support
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Blixt
Newbie
Joined: 24 August 2009
Location: Sweden
Online Status: Offline
Posts: 10
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| Posted: 25 August 2009 at 12:34am | IP Logged
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Removing the ExamineFolder/SelectFolder call
(I tried both) stops the error from occurring
(well, I get an error on Idle telling me that
I have to select a folder, but this is
expected.)
Any ideas why the ExamineFolder/SelectFolder
calls are causing this error? Here's the
output of the exception:
MailBee.MailBeeExternalException
was unhandled
Message="User code has thrown an exception.
InnerException message follows: There is
already an operation in progress."
Source="MailBee.NET"
ErrorCode=7
StackTrace:
vid gk.a(Delegate A_0, Object[] A_1)
vid gx.a(String A_0, Int32 A_1,
MessageFlagSet A_2)
vid gx.b(Boolean A_0)
vid gx.ae()
vid bb.b(String A_0, e5 A_1, Boolean
A_2)
vid bb.a(String A_0, e5 A_1, Boolean
A_2)
vid gx.a(String A_0, Boolean A_1)
vid gx.d(String A_0, Boolean A_1)
vid cx.c(String A_0, Boolean A_1)
vid cx.c(Boolean A_0, String A_1,
Boolean A_2)
vid
MailBee.ImapMail.Imap.ExamineFolder(String
folderName)
vid
Skanemejerier.SkanemejerierService.Connect() i
C:\Documents and Settings\Administratör\Mina
dokument\Visual Studio
2008\Projects\MMSImport\SkanemejerierShakeServ
ice\SkanemejerierService.cs:rad 105
vid ServiceTester.Program.Main(String[]
args) i C:\Documents and
Settings\Administratör\Mina dokument\Visual
Studio
2008\Projects\MMSImport\ServiceTester\Program.
cs:rad 15
vid
System.AppDomain._nExecuteAssembly(Assembly
assembly, String[] args)
vid
System.AppDomain.ExecuteAssembly(String
assemblyFile, Evidence assemblySecurity,
String[] args)
vid
Microsoft.VisualStudio.HostingProcess.HostProc
.RunUsersAssembly()
vid
System.Threading.ThreadHelper.ThreadStart_Cont
ext(Object state)
vid
System.Threading.ExecutionContext.Run(Executio
nContext executionContext, ContextCallback
callback, Object state)
vid
System.Threading.ThreadHelper.ThreadStart()
InnerException:
MailBee.MailBeeInvalidStateException
Message="There is already an operation
in progress."
Source="MailBee.NE T"
ErrorCode=3
StackTrace:
vid gk.i(Boolean A_0)
vid cx.a(Boolean A_0, Boolean A_1,
String A_2, String A_3, String A_4)
vid
MailBee.ImapMail.Imap.Search(Boolean
returnUids, String searchCondition, String
charset)
vid
Skanemejerier.SkanemejerierService.MessageStat
usUpdated(Object sender,
ImapMessageStatusEventArgs e) i C:\Documents
and Settings\Administratör\Mina
dokument\Visual Studio
2008\Projects\MMSImport\SkanemejerierShakeServ
ice\SkanemejerierService.cs:rad 46
InnerException:
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Igor
AfterLogic Support
Joined: 24 June 2008
Location: United States
Online Status: Offline
Posts: 6167
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| Posted: 25 August 2009 at 12:49am | IP Logged
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Actually, I meant removing the following line:
Code:
| ImapObject.MessageStatus += new ImapMessageStatusEventHandler(MessageStatusUpdated); |
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The issue seems to be caused by the code used in MessageStatusUpdated method; make sure this method does not contain any requests to IMAP server. As the method is asynchronous, it can work at the same time when main code is executed.
--
Regards,
Igor, AfterLogic Support
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Blixt
Newbie
Joined: 24 August 2009
Location: Sweden
Online Status: Offline
Posts: 10
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| Posted: 25 August 2009 at 12:57am | IP Logged
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Oooh, I see. Yeah, that is probably the cause!
There is some code that fetches e-mails in the
inbox in the callback.
The purpose of the code is to wait for incoming
e-mails and handle them as they arrive. Should I
instead set a flag in the MessageStatusUpdated
method and fetch the e-mails in the Idling
event, or is there any other recommended way of
doing this?
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Igor
AfterLogic Support
Joined: 24 June 2008
Location: United States
Online Status: Offline
Posts: 6167
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| Posted: 25 August 2009 at 1:08am | IP Logged
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We have a sample code for using IMAP IDLE, you can download it at:
IDLE Sample
Hope this helps.
--
Regards,
Igor, AfterLogic Support
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Blixt
Newbie
Joined: 24 August 2009
Location: Sweden
Online Status: Offline
Posts: 10
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| Posted: 25 August 2009 at 2:44am | IP Logged
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I've got it working now! Thanks for your help!
Regards,
Andreas
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