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Possible bug causing InvalidOperationException - RapidSpell Desktop .NET - Forum

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areichhart
#1 Posted : Thursday, April 27, 2017 12:56:59 PM
Rank: Newbie

Groups: Registered

Joined: 3/28/2017
Posts: 9
Location: Graz, Austria
Hey there,

i recently added Spellchecking to many standard winform - textboxes across the application.
To do that i intialize a rapidspellasyoutype object once on global level, and add on the Form_Load events whenever i require spellchecking.

rapidSpell.AddTextBoxBase(textbox1);
HOWEVER:
If you close that form fast (so that rapidspell.AddTextBoxBase started threads aren'T finished you will get an InvalidOperationException - (Invoke or BeginInvoke cannot be called on a control until the window handle has been created)
StackTrace:
System.Windows.Forms.Control.MarshaledInvoke(Control caller, Delegate method, Object[] args, Boolean synchronous)

What crashes the whole application with a TargetInvocationException,

If you add rapidSpell.RemoveTextBoxBase(textbox1) on the FormClosing event the problem can be resolved. I first tried it on Dispose, but that's to late ... )
Still for rapidSpell.AddTextComponent this issue doesn't exist.

I think the issue is very mean, as it only occurs if you close the Form fast (what isn't a standard use/test case).
So this one gave me quite some headache.
I hope you can fix it for future releases.

Best regards,
Alwin
Dan
#2 Posted : Thursday, April 27, 2017 1:28:49 PM
Rank: Advanced Member

Groups: Administrators, Registered

Joined: 10/20/2004
Posts: 456
Hi Alwin,

Thank you for your post. I will make sure a developer looks at this today and if necessary we'll post here with an update.

Thanks again.

Dan
Keyoti
Dan Wright
Jim
#3 Posted : Thursday, April 27, 2017 4:56:45 PM
Rank: Advanced Member

Groups: Administrators, Registered

Joined: 8/13/2004
Posts: 2,619
Location: Canada
Hi Alwin, thanks for your bug report and for posting a workaround. I'll log it to be fixed in the next release. If you do need it sooner (sounds like you won't) then just let me know.


Jim
-your feedback is helpful to other users, thank you!


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