Python 单个模型连接到多个对话框上的多个视图,不更新
连接到同一模型的两个独立形式。正如我所理解的,模型视图是如何工作的,所有连接到模型的视图都应该显示模型中的数据。但事实并非如此。请参阅所附代码Python 单个模型连接到多个对话框上的多个视图,不更新,python,model-view-controller,pyqt4,Python,Model View Controller,Pyqt4,连接到同一模型的两个独立形式。正如我所理解的,模型视图是如何工作的,所有连接到模型的视图都应该显示模型中的数据。但事实并非如此。请参阅所附代码 class Model(QStringListModel): def __init__(self, parent=None): super(Model, self).__init__(parent) data = QStringList() data << "one" <<
class Model(QStringListModel):
def __init__(self, parent=None):
super(Model, self).__init__(parent)
data = QStringList()
data << "one" << "two" << "three" << "four" << "five"
self.setStringList(data)
class Form_2(QDialog):
def __init__(self, parent=None):
super(Form_2, self).__init__(parent)
self.model = Model()
self.combo = QListView()
self.combo.setModel(self.model)
layout = QVBoxLayout()
layout.addWidget(self.combo)
self.setLayout(layout)
class Form_1(QDialog):
def __init__(self, parent=None):
super(Form_1, self).__init__(parent)
self.model = Model()
self.listView = QListView()
self.listView.setModel(self.model)
self.combo = QComboBox()
self.combo.setModel(self.model)
self.form2_button = QPushButton("Open Form_2")
layout = QVBoxLayout()
layout.addWidget(self.listView)
layout.addWidget(self.combo)
layout.addWidget(self.form2_button)
self.setLayout(layout)
self.connect(self.form2_button, SIGNAL("clicked()"), self.form_2)
def form_2(self):
self.ft = Form_2()
self.ft.show()
app = QApplication(sys.argv)
form = Form_1()
form.show()
app.exec_()
类模型(QStringListModel):
def uuu init uuu(self,parent=None):
超级(模型,自我).\uuuu初始\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
数据=QStringList()
数据感谢ccc.larc回答我的问题。基本上,您需要将模型的同一实例传递给希望它使用的表单
class Model(QStringListModel):
def __init__(self, parent=None):
super(Model, self).__init__(parent)
data = QStringList()
data << "one" << "two" << "three" << "four" << "five"
self.setStringList(data)
class Form_2(QDialog):
def __init__(self, model, parent=None):
super(Form_2, self).__init__(parent)
self.model = model
self.combo = QListView()
self.combo.setModel(self.model)
layout = QVBoxLayout()
layout.addWidget(self.combo)
self.setLayout(layout)
class Form_1(QDialog):
def __init__(self, parent=None):
super(Form_1, self).__init__(parent)
self.model = Model()
self.listView = QListView()
self.listView.setModel(self.model)
self.combo = QComboBox()
self.combo.setModel(self.model)
self.form2_button = QPushButton("Open Form_2")
layout = QVBoxLayout()
layout.addWidget(self.listView)
layout.addWidget(self.combo)
layout.addWidget(self.form2_button)
self.setLayout(layout)
self.connect(self.form2_button, SIGNAL("clicked()"), self.form_2)
def form_2(self):
self.ft = Form_2(self.model)
self.ft.show()
app = QApplication(sys.argv)
form = Form_1()
form.show()
app.exec_()
类模型(QStringListModel):
def uuu init uuu(self,parent=None):
超级(模型,自我).\uuuu初始\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
数据=QStringList()
数据