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AdrianP
Posts: 13
Joined: 2024-05-25
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Hello,
I'm about to finish my Outlook plugin and I thought to add some context help for the config panel.
Fiddling with F1 key to see if the help events in my config dlg. fire correctly, I uncovered a surprise :-)
Basically, each time F1 is pressed second time in the dialog window, Outlook crashes completely (closes and complains about the add-in at next restart, disabling it). I haven't written any code for help, shortcuts or any other kb processing.
I was able to reproduce it with a new C# project:
1. Create a new ADX com add-in, just for Outlook, versions 2016-2021;
2. Add a ribbonTab, a ribbonGroup and a ribbonBtn;
3. Add new form to project, with no controls on it;
4. On the ribbonBtn OnClick event, display the form modally;
Form1 form1 = new Form1();
form1.ShowDialog();
form1.Dispose();
5. Build as release, register the add-in;
6. Open Outlook 2019, click on the ribbonBtn, form1 shows;
7. Press F1, Outlook will open a browser window "How can we help you?" (most likely becasue it has nothing associated with our add-in, helpwise);
8. Return to our form1, which is still open, and press F1 a second time. Now, instead of opening a browser, Outlook thinks for a bit and perishes :-)
What I tried, with no effect:
- changed the .NET target framework from 4.5 to 4.7.2;
- wrote an OnError event, but no exception is caught;
What I tried, with great effect:
- write an empty HelpRequested event for the form1, just to trap the F1 and prevent sending it down the line to Outlook;
I use VS2022, latest ADX version, Office 2019, Win10 box.
So, what do you think?
Regards! |
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Andrei Smolin
Add-in Express team
Posts: 18965
Joined: 2006-05-11
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Hello Adrian,
We reproduce this issue with a VSTO add-in. We suppose this relates somehow to modality: when you open a modal window, its messages are handled by the .NET Framework (specifically, in System.Windows.Forms Application), not by Outlook.
Regards from Poland (GMT+2),
Andrei Smolin
Add-in Express Team Leader |
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AdrianP
Posts: 13
Joined: 2024-05-25
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Hello Andrei and thanks for answering,
Yes, it looks like that. The moment you assign a HelpRequested event (even a empty one) to the form, problem dissapears.
Using a HelpProvider component on the form works as well.
Was a very nice experience working with ADX, not so nice dealing with Outlook quirks, but such is life :-)
Regards |
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Andrei Smolin
Add-in Express team
Posts: 18965
Joined: 2006-05-11
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Thank you!
Regards from Poland (GMT+2),
Andrei Smolin
Add-in Express Team Leader |
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