Problems Qt Widgets applications and MySql

[Emit]

Is that it?

delete ui;

delete ui;

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[anda_skoa]

No, that just deletes the structure holding the pointers to all UI elements.

Why do you want to explicitly delete the model at all?
Just pass your window as a parent and let it delete the model just like it deletes its UI children.

Cheers,
_

[Emit]

To avoid garbage in the Heap.

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Added after 1 23 minutes:

Is it possible to do this with a program and how would I do it?

You choose a Table(from MySQL database) with for example 4 fields and press a button.
When you press the button 4 labels (out of 7 labels) are named with the name fields of the chosen table.

For example table has fields: name, age, salary, email

When you choose the table with those fields 4 out of 7 labels text become age, name ...

[anda_skoa]

To avoid garbage in the Heap.

I was not suggesting to not delete the object, was I?

You choose a Table(from MySQL database) with for example 4 fields and press a button.
When you press the button 4 labels (out of 7 labels) are named with the name fields of the chosen table.

For example table has fields: name, age, salary, email

When you choose the table with those fields 4 out of 7 labels text become age, name ...

QDataWidgetMapper

Cheers,
_