Dynamically created buttons.

[wysota]

One more question - should I use disconnect() to disconnect all signals (from created buttons) from slots.

Why don't you try it first with and without disconnecting and then answer your own question?

[BalaQT]

hi,

should I use disconnect() to disconnect all signals

u should disconnect all the buttons.
one button's disconnect will disconnect only that signal.

hope it helps
Bala

[wysota]

u should disconnect all the buttons.
one button's disconnect will disconnect only that signal.

I suggest you do that experiment as well, BalaQT.

[BalaQT]

hi wysota,
thnks fr ur reply

I suggest you do that experiment as well, BalaQT.

i tried and following are the outputs.
when i try

disconnect(btn[0],0,0,0);    //disconnect single buttons
    sigMap->disconnect();       //disconnect all signals from sigMap

disconnect(btn[0],0,0,0);    //disconnect single buttons
    sigMap->disconnect();       //disconnect all signals from sigMap

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@Tomasz: should I use disconnect() to disconnect all signals (from created buttons) from slots.

so to disconnect all signals , use sigMap->disconnect();

Bala

[wysota]

That was not the point. Delete all the objects and see if the connections are still valid.

[BalaQT]

That was not the point. Delete all the objects and see if the connections are still valid.

hi wysota,
i tried and when we delete all the objects, connections are also deleted.

Bala

[Tomasz]

That was not the point. Delete all the objects and see if the connections are still valid.

You're right. Nice feature of qDeleteAll().

Thanks again!
best regards
Tomasz

[wysota]

It's not a feature of qDeleteAll, when you delete a particular object, its connections are always broken. qDeleteAll is an equivalent of:

foreach(item *i, container){
  delete i;
}

foreach(item *i, container){
  delete i;
}

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