After changing the contents directly in the setupUI function

[IknowQT]

If I change the ui of the .ui file after directly changing the contents in the setupUI function, the contents that I coded by myself disappear.
Is there a way to keep the hardcoded content as it is?

setupUi(QWidget *wSpectrum_Setup)
{
     scrollArea_Contents = new wSpectrum_Setup_Items(wSpectrum_Setup);
}

Existing wSpectrum_Setup_Items()
After the change, wSpectrum_Setup_Items(wSpectrum_Setup);

[jsulm]

@IknowQT "After changing the contents directly in the setupUI function" - this is not a proper title.

"after directly changing the contents in the setupUI function" - never change generated code - your changes will be gone next time code is generated!
Why do you need to change generated code?!

[IknowQT]

@jsulm

I want to pass a pointer to wSpectrum_Setup.
When initializing, we need the information in wSpectrum_Setup

[jsulm]

@IknowQT As I said: do not change generated code.
You can change widgets in your forms after calling setupUi:

ui->scrollArea_Contents = new wSpectrum_Setup_Items(wSpectrum_Setup);

[IknowQT]

@jsulm

wSpectrum_Setup::wSpectrum_Setup(QWidget *parent)
	: m_pScroller(new usrScrollBar(this))
{
	ui.setupUi(this);
	this->setWindowFlags(Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint);

	Initailize();
}

Are you saying Initalize should recreate it after calling setupui? If so, isn't it that two objects are created?

[Christian Ehrlicher]

@IknowQT said in After changing the contents directly in the setupUI function:

If so, isn't it that two objects are created?

Yes, they are. Why do you want to replace it in code and not in designer -> promote widget

[J.Hilk]

@Christian-Ehrlicher said in After changing the contents directly in the setupUI function:

Yes, they are. Why do you want to replace it in code and not in designer -> promote widget

because the OP's wSpectrum_Setup_Items object requieres a QWidget pointer in the constructor, AND it apparently has no default constructor and a secondary setter function for the mentioned widget

[Christian Ehrlicher]

@J-Hilk Then the class should be changed instead adding all kind of hacks.

[IknowQT]

@jsulm

this->ui.scrollArea_Contents->setParent(this);

You passed a pointer to the parent to setParent.
This is how I solved it.