[SOLVED] QTreeview Double Clicked "The program unexpectedly finished"

SGaist

Hi,

index comes from filter not from model. You have to map the index like you did in your setRootIndex call

takoo

Please give me example code .
I writting at the moment from phone

SGaist

Do you mean an example of calling mapToSource ?

takoo

Codes above

SGaist

In the code above, you are trying to use an index from your proxy on your file system model. That's the problem, you have to use mapToSource in order to get the right index.

takoo

@SGaist Where will I use mapToSource ?

SGaist

In on_treeView_doubleClicked

takoo

@SGaist I wrote this code and again I get error("the has unexpectedly finished") ```
void MainWindow::on_treeView_doubleClicked(const QModelIndex &index)
{

if(index.isValid())
{
filter->mapToSource(model->index(dir));
qDebug()<<model->filePath(index);
}
}

mrjj

@takoo said:

Hi
http://doc.qt.io/qt-5.5/qsortfilterproxymodel.html#mapToSource
it returns a new index. I assume you should use that index.
you still use "old" index filePath(index);

QModelIndex mapped=filter->mapToSource(model->index(dir));
model->filePath(mapped);

takoo

hi ```

I get error (QSortFilterProxyModel: index from wrong model passed to mapToSource)
void MainWindow::on_treeView_doubleClicked(const QModelIndex &index)
{

if(index.isValid())
{
QModelIndex mapped=filter->mapToSource(model->index(dir));

    qDebug()<<model->filePath(mapped);
 }

}

mrjj

oh
maybe its
mapToSource(index)

takoo

Thanks everybody