slot中传参数出了问题

C/C++ code

        QTreeWidgetItem *item = new QTreeWidgetItem(0);     item->setText(0,name);    friendView->addTopLevelItem(item);     messageView->append(item->text(0));    connect(friendView, SIGNAL(itemClicked(QTreeWidgetItem*, int)),        this, SLOT(openNewDialog(QString))); // 这里我想把item->text(0)作为openNewDialog()的参数传过去

C/C++ code

void MyMainWindow::openNewDialog(QString name ){    //messageView->append("sign");    MyDialog *md = new MyDialog(name);      md->show();     md->raise();     md->activateWindow();}

然后运行程序后，点击item 没有反应，？？？

[解决办法]
LZ错了 信号槽的信号函数和槽函数的形参类型必须一致才能进行参数传递
connect(friendView, SIGNAL(itemClicked(QTreeWidgetItem*, int)),
this, SLOT(openNewDialog(QString)));

openNewDialog(QString)得才成openNewDialog(QTreeWidgetItem*, int），保持两个函数形参一致

探讨

C/C++ code

QTreeWidgetItem *item = new QTreeWidgetItem(0);
item->setText(0,name);
friendView->addTopLevelItem(item);
messageView->append(item->text(0));
connect(friendView,……

[解决办法]
你可以传过去(QTreeWidgetItem* ,int),然后再用 item->text(0)，作为你想处理的字段读取！