Run code when my TabPage is selected

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Posted on by Superbunny

329

I extended the base form JmgTimecard.FM and added my own TabPage below the Tab RegistrationTab.

I was wondering how I could get this done.

I've tried the following things:

-extend the 'activatePage' function of my tab -> This gives an error that this function is only available for 'fastTabs'

-extend the 'tabChanged' function of the TabPage -> This I wanted to do, but since the Tab is part of the microsoft form and not my extension, I am not allowed to edit the Auto Declaration property.

Could someone enlighten me how I could produce this functionality?

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Martin Dráb 237,878 Most Valuable Professional on at

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You shouldn't need Auto Declaration property. What is the code where you need it?

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Superbunny 329 on at

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@Martin:

I created a class that contains an extension for my form and tried the following extensions for the formControl:

Extending the TAB:

[ExtensionOf(formControlStr(JmgTimecard, TimeTotalsOverview))]
void activatePage ()
{
str testBreakpoint = "testBreakpoint";
}

Extending the TABPAGE:

[ExtensionOf(formControlStr(JmgTimecard, RegistrationTab))]
void tabChanged ()
{
str testBreakpoint = "testBreakpoint";
}

You are indeed correct that the Auto Declaration is not needed at all, when using it within formControlStr, which I just found out.

I however still keep getting the error "This method is only supported on Style=FastTabs.\r\n(S)\\Classes\\FormTabPageControl\\expand\n" on pageload when using either of these extensions.

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Martin Dráb 237,878 Most Valuable Professional on at

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The error message talks about neither activatePage() or tabChanged(). It says that the method called in a wrong context is expand(). It seems to be related to some other piece of code; the stack trace will tell you more if you have no idea where it's coming from.

By the way, I'm surprised that you aren't getting compilation errors in tabChanged(), because it has wrong parameters and it lacks the 'next' call. Regarding activatePage(), I don't see it as a method of tab page controls.

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Superbunny 329 on at

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ah I see the issue now.

I was extending in the wrong way, that is also why it compiled without the next call.

I added my element extension below another form extension. Because I did not create my own class it did not really get extended.

I noticed it, when I added next and it said there was no function to extend.

Thanks for the help

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