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Pino Carafa
Posts: 103
Joined: 2016-09-28
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Hello Add-in Express.... this should be a bit easier to answer than my previous topic :-)
We have a Word Add-in in which we catch the user trying to save a Word Document by adding an AddinExpress.MSO.ADXRibbonCommand to our Addin, and linking it to MSO Id FileSave
We then code _OnAction(sender As Object, control As IRibbonControl, pressed As Boolean, e As ADXCancelEventArgs) and all is well.
So I am hoping it is also possible to create one to link to the Send button in an Outlook.Inspector. If that can be done, what properties do I need to set and to what values?
I would prefer to handle the button this way rather than doing things in adxOutlookEvents.ItemSend as at that point the message is already "on its way" - and it makes the subsequent code messy and hard to control. |
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Posted 16 Oct, 2019 05:48:26
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Andrei Smolin
Add-in Express team
Posts: 17493
Joined: 2006-05-11
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Hello Pino,
Pino Carafa writes:
as at that point the message is already "on its way"
Sorry? It isn't sent in that moment, it simple has come through some of the stages before sending. You can intercept the Send event of the MailItem object; this occurs on an even earlier phase. But I don't see the difference: both of them allows cancelling the send.
Anyway, the Send button isn't interceptable. I know that you can use Windows API to intercept clicking that button. What do you need to achieve?
Regards from Belarus (GMT+3),
Andrei Smolin
Add-in Express Team Leader |
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Posted 16 Oct, 2019 06:46:16
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Pino Carafa
Posts: 103
Joined: 2016-09-28
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Ok - I won't take up any of your time at this point, Andrei, as maybe I am simply doing something stupid, and I need to count out that possibility. It's a very real one haha - So I will be investigating this myself first.
This is the problem I'm having.
User is composing an email and we show a Form at the top of the Inspector. One of the things on the form is a button that allows them to pick a "case". If they do that, I use the PropertyAccessor and I set a Property on that containing a String value representing the "case code".
"http://schemas.microsoft.com/mapi/string/{00020386-0000-0000-C000-000000000046}/CaseReference}"
Here is the relevant code:
Private Sub adxOutlookEvents_ItemSend(sender As Object, e As ADXOlItemSendEventArgs)
Dim oItem As Outlook.MailItem = Nothing
Try
oItem = TryCast(e.Item, Outlook.MailItem)
If oItem Is Nothing Then
Exit Sub
End If
Catch
End Try
and a bit further down
Dim sCaseReference As String
Dim oPA As Outlook.PropertyAccessor = Nothing
Try
oPA = oItem.PropertyAccessor
Catch
End Try
then, when I'm confident oPA is not Nothing
Try
Dim oProp As Object = Nothing
Try
oProp = oPA.GetProperty("http://schemas.microsoft.com/mapi/string/{00020386-0000-0000-C000-000000000046}/CaseReference}")
Catch
End Try
If Not oProp Is Nothing Then
Try
sCaseReference = TryCast(oProp, String)
Catch
End Try
If Not oProp Is Nothing Then
Try
Marshal.ReleaseComObject(oProp)
Catch
End Try
oProp = Nothing
End If
End If
Catch
End Try
And finally
If Not oPA Is Nothing Then
Try
Marshal.ReleaseComObject(oPA)
Catch
End Try
oPA = Nothing
End If
Now here is what's funny: When I am working in Cashed Exchange Mode, this works perfectly. I get the Property Accessor and I retrieve the CaseReference property that was set when the user "Selected a Case"
But in NON-Cashed Exchange Mode, it goes wrong. I still get the PropertyAccessor, but when I then try to get that Property, it fails
Exception thrown: 'System.Runtime.InteropServices.COMException' in KeyhouseOutlookAddin.dll
Additional information: The property "http://schemas.microsoft.com/mapi/string/{00020386-0000-0000-C000-000000000046}/CaseReference}" is unknown or cannot be found.
Here is the crazy thing.....
1) If I .Save() the mail item before getting the Property Accessor, it works. But then I create a Draft. I don't want to create a Draft....
2) If I .Copy() the mail item, and I use the PropertyAccessor on the copied item, it succeeds. But then I create a Copy of the mailitem in the Outbox.... Now I can work around that by forcibly deleting the copy after getting the info out of its PropertyAccessor, but that's hacky to say the least.
So, yes, my suspicion is that I am NOT releasing something while the user is Composing and selecting the Case. So I will investigate that part of the code myself first. If, however, you have any words of wisdom they would be greatly appreciated. |
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Posted 16 Oct, 2019 08:00:50
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Andrei Smolin
Add-in Express team
Posts: 17493
Joined: 2006-05-11
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Hello Pino,
I would isolate this code in a separate add-in project, turn all other COM add-ins off and check if there's an issue in the test add-in.
Regards from Belarus (GMT+3),
Andrei Smolin
Add-in Express Team Leader |
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Posted 16 Oct, 2019 08:08:27
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Pino Carafa
Posts: 103
Joined: 2016-09-28
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(I'll copy the text from the Private email for the benefit of other readers)
Ok I think this is a real issue, not something I am doing wrong.
I modified the project you sent me before for https://www.add-in-express.com/forum/read.php?PAGEN_1=1&FID=5&TID=15644#nav_start
I added an ADXOlForm to the project which is shown when the user Composes a new email. It features a single button.
On the button click I set a Property through the CurrentItem’s PropertyAccessor
Please note that there are 3 commented out bits of code where I’m releasing the objects. I tried releasing or NOT releasing the PropertyAccessor, the Mail Item and the Inspector. None of it makes the slightest bit of a difference.
I also added Private Sub AdxOutlookAppEvents1_ItemSend(sender As Object, e As ADXOlItemSendEventArgs) Handles AdxOutlookAppEvents1.ItemSend to the AddinModule.
All other Add-ins are removed c.q. disabled.
What I find is consistent with the problem I describe in https://www.add-in-express.com/forum/read.php?FID=5&TID=15668
When the Profile uses Cached Exchange Mode, everything is working perfectly. The Property is Set in the Button Click, and retrieved in the _ItemSend
When the Profile does NOT use Cached Exchange Mode, an error is raised when trying to read the Property in the _ItemSend
Regards
Pino |
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Posted 16 Oct, 2019 09:14:42
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Pino Carafa
Posts: 103
Joined: 2016-09-28
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Private Sub AdxOutlookAppEvents1_ItemSend(sender As Object, e As ADXOlItemSendEventArgs) Handles AdxOutlookAppEvents1.ItemSend
Dim oItem As Outlook.MailItem = Nothing
Try
oItem = TryCast(e.Item, Outlook.MailItem)
If oItem Is Nothing Then
Exit Sub
End If
Catch
End Try
Dim oPA As Outlook.PropertyAccessor = Nothing
Dim sCaseReference As String = String.Empty
Try
oPA = oItem.PropertyAccessor
Catch
End Try
If Not oPA Is Nothing Then
Try
sCaseReference = oPA.GetProperty("http://schemas.microsoft.com/mapi/string/{00020386-0000-0000-C000-000000000046}/CaseReference}").ToString().Trim()
Catch ex As Exception
System.Diagnostics.Debug.WriteLine("Error getting Case Reference: " + ex.Message)
End Try
Try
Marshal.ReleaseComObject(oPA)
Catch
End Try
oPA = Nothing
End If
If Not String.IsNullOrEmpty(sCaseReference) Then
System.Diagnostics.Debug.WriteLine("Retrieved Case Reference: " + sCaseReference)
End If
e.Cancel = True
End Sub
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Posted 16 Oct, 2019 09:31:20
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Pino Carafa
Posts: 103
Joined: 2016-09-28
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Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
Dim oInspector As Object = Nothing
Dim oItem As Object = Nothing
Try
oInspector = Me.InspectorObj
Catch ex As Exception
End Try
Try
oItem = Me.InspectorObj.CurrentItem
Catch ex As Exception
End Try
Dim oPA As Outlook.PropertyAccessor = Nothing
Try
oPA = oItem.PropertyAccessor
Catch
End Try
If Not oPA Is Nothing Then
Try
oPA.SetProperty("http://schemas.microsoft.com/mapi/string/{00020386-0000-0000-C000-000000000046}/CaseReference}", oItem.Subject)
Catch ex As Exception
System.Diagnostics.Debug.WriteLine("Error setting Case Reference: " + ex.Message)
End Try
'Uncommenting this makes no difference
'Try
' Marshal.ReleaseComObject(oPA)
'Catch
'End Try
oPA = Nothing
End If
'Uncommenting this makes no difference
'Try
' Marshal.ReleaseComObject(oItem)
'Catch
'End Try
oItem = Nothing
'Uncommenting this makes no difference
'Try
' Marshal.ReleaseComObject(oInspector)
'Catch ex As Exception
'End Try
oInspector = Nothing
End Sub
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Posted 16 Oct, 2019 09:32:17
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Pino Carafa
Posts: 103
Joined: 2016-09-28
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To summarise:
Setting the "CaseReference" always works fine. No error is ever thrown. I decided to set it to the Email Subject for this test so that we can check what, if anything, is retrieved in the _ItemSend. Commenting or Uncommenting the parts in green makes no difference; as far as I can tell it always works in Cached exchange mode, and it always throws an error when connecting to Online Exchange in NON-cached exchange mode |
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Posted 16 Oct, 2019 09:36:38
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Andrei Smolin
Add-in Express team
Posts: 17493
Joined: 2006-05-11
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Does saving the item help?
PS. See you tomorrow.
Regards from Belarus (GMT+3),
Andrei Smolin
Add-in Express Team Leader |
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Posted 16 Oct, 2019 09:43:46
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Pino Carafa
Posts: 103
Joined: 2016-09-28
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Thanks for your patience, Andrei,
Yes it does help but that causes the email to be saved as a Draft. I then have a new problem as the user's draft folder quickly fills up with junk ... We had a solution like that in place before and you can guess how our customers responded to our suggestion that it was their responsibility to regularly clean out their drafts folder *sigh* :-)
Indeed, talk to you tomorrow no doubt. You have the patience of a saint! |
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Posted 16 Oct, 2019 09:52:29
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