Deleting QPushButtons?

[meepo1]

I've created dynamically several QPushbutton using "Button1", however, I cannot delete all of them using another QPushButton. How Can I do it?

void Window1::db(){
    for(int i = 0; i < DefN.size(); i++){
         QPushButton *bu = new QPushButton(this);
         if(DefN[i].indexOf(" ") != -1){
             nom = DefN[i].replace(DefN[i].indexOf(" "),1,"\n");
             bu->setText(nom+"\n"+DefS[i]);
         }else{
             bu->setText(DefN[i]+" "+"\n"+DefS[i]);
         }           
         bu->setParent(this);
         bu->setMaximumWidth(121);
         bu->setMinimumWidth(121);
         bu->move(140+120*val,140*val);
         bu->show();
    }
}

[jsulm]

@meepo1 said in Deleting QPushButtons?:

I cannot delete all of them

Why not? How did you try to delete them?

[meepo1]

@jsulm I dont know how to detect all those Pushbutton and delete them. Well , in summary i think i have no idea.

[jsulm]

@meepo1 Well, you can put the pointers in a list when you create them, then just iterate over that list and call dleteLater() (buttons is a QList<QPushButton*>):

void Window1::db(){
    for(int i = 0; i < DefN.size(); i++){
         QPushButton *bu = new QPushButton(this);
         if(DefN[i].indexOf(" ") != -1){
             nom = DefN[i].replace(DefN[i].indexOf(" "),1,"\n");
             bu->setText(nom+"\n"+DefS[i]);
         }else{
             bu->setText(DefN[i]+" "+"\n"+DefS[i]);
         }           
         bu->setParent(this);
         bu->setMaximumWidth(121);
         bu->setMinimumWidth(121);
         bu->move(140+120*val,140*val);
         buttons.append(bu);
         bu->show();
    }
}

void Window1::deleteButtons()
{
    for (QPushButton *bu : buttons)
        bu->deleteLater();
    bu.clear();
}

[J.Hilk]

@meepo1 alternatively to what @jsulm said, you can take the signal of the Deletebutton and connect that to delete slot of the other buttons.

//under the assumption your button to delete all buttons is named "deleteButton"

void Window1::db(){
    for(int i = 0; i < DefN.size(); i++){
         QPushButton *bu = new QPushButton(this);
         if(DefN[i].indexOf(" ") != -1){
             nom = DefN[i].replace(DefN[i].indexOf(" "),1,"\n");
             bu->setText(nom+"\n"+DefS[i]);
         }else{
             bu->setText(DefN[i]+" "+"\n"+DefS[i]);
         }           
         bu->setParent(this);
         bu->setMaximumWidth(121);
         bu->setMinimumWidth(121);
         bu->move(140+120*val,140*val);
         bu->show();

         connect(deleteButton, &QPushButton::clicked, bu, &QPushButton::deleteLater); 
    }
}