trying to access treewidget indexFromItem

[gamenovice]

Hello all,

I have been trying to make use of the QTreeWidget's indexFromItem to make use to access an actual index on a QStringList (for file writing purposes).

I can't show code b/c this is an offsite computer, but I need help.

when I try to do something like this:

void on_treeWidget_itemChanged(QTreeItem *item, int column)
{
 
       int Index = ui->treeWidget->indexFromItem(item->parent(),0).row();
}

void on_treeWidget_itemChanged(QTreeItem *item, int column)
{

       int Index = ui->treeWidget->indexFromItem(item->parent(),0).row();
}

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i get this error message saying indexFromItem is a protected member.

Ive tried direct input, such as:

QStringList list;
 
list.removeAt(ui->treeWidget->indexFromItem(item->parent(),0).row());

QStringList list;

list.removeAt(ui->treeWidget->indexFromItem(item->parent(),0).row());

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or even a failed attempt at getting and setting

I'm pressed for time, but I was hoping that somebody had the answers to this dilemma.

Thanks in advance,
gamenovice

ps. If I am not being clear, let me know

[ChrisW67]

This is a C++ understanding issue. Protected member functions are only available to the class that contains them or classes that inherit from that class. They behave as private to all others attempting access.

You are trying to determine which child of the changed item's grandparent is the changed item's parent. Something like:

int index = -1; // means not found
QTreeWidgetItem *parent = item->parent();
if (parent) {
  QTreeWidgetItem *grandparent = parent->parent();
  if (grandparent)
    index = grandparent->indexOfChild(parent);
}

int index = -1; // means not found
QTreeWidgetItem *parent = item->parent();
if (parent) {
  QTreeWidgetItem *grandparent = parent->parent();
  if (grandparent)
    index = grandparent->indexOfChild(parent);
}

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