在Pyside QtableView中连接事件

Question

我需要一个简单的示例：如何连接 selectrow event （如果在pyside中存在此事件）和呼叫相应的处理程序。例如

self.table_view.selectedRow.connect(lambda: self.handler(param))

Answer 1

如果您使用的是qtableView，则需要连接到其选择模型的选择变为信号。然后，您可以使用选择模型的选定方法获取选定的行（其中"选择行"表示整个行的选择）。

这是一个简单的演示：

from PySide import QtGui, QtCore
class Window(QtGui.QWidget):
    def __init__(self, rows, columns):
        QtGui.QWidget.__init__(self)
        self.table = QtGui.QTableView(self)
        model =  QtGui.QStandardItemModel(rows, columns, self.table)
        for row in range(rows):
            for column in range(columns):
                item = QtGui.QStandardItem('(%d, %d)' % (row, column))
                item.setTextAlignment(QtCore.Qt.AlignCenter)
                model.setItem(row, column, item)
        self.table.setModel(model)
        selection = self.table.selectionModel()
        selection.selectionChanged.connect(self.handleSelectionChanged)
        layout = QtGui.QVBoxLayout(self)
        layout.addWidget(self.table)
    def handleSelectionChanged(self, selected, deselected):
        for index in self.table.selectionModel().selectedRows():
            print('Row %d is selected' % index.row())
if __name__ == '__main__':
    import sys
    app = QtGui.QApplication(sys.argv)
    window = Window(5, 5)
    window.show()
    window.setGeometry(600, 300, 600, 250)
    sys.exit(app.exec_())

Answer 2

谢谢#ekhumoro的回答，这确实很有帮助。我还尝试修改您的代码

#from PySide import QtGui, QtCore
from PyQt4 import QtGui, QtCore                                         #           
class Window(QtGui.QWidget):
    def __init__(self, rows, columns):
        QtGui.QWidget.__init__(self)
        self.table = QtGui.QTableView(self)
        self.table.setSelectionMode(QtGui.QTableView.SingleSelection)   #
        self.table.setSelectionBehavior(QtGui.QTableView.SelectRows)    #
        model =  QtGui.QStandardItemModel(rows, columns, self.table)
        for row in range(rows):
            for column in range(columns):
                item = QtGui.QStandardItem('(%d, %d)' % (row, column))
                item.setTextAlignment(QtCore.Qt.AlignCenter)
                model.setItem(row, column, item)
        self.table.setModel(model)
    #    selection = self.table.selectionModel()
    #    selection.selectionChanged.connect(self.handleSelectionChanged)
        self.table.selectionModel().currentRowChanged.connect(self.handleSelectionChanged)
        self.assetChanged(self.table.currentIndex())
        layout = QtGui.QVBoxLayout(self)
        layout.addWidget(self.table)
    #def handleSelectionChanged(self, selected, deselected):
    #    for index in self.table.selectionModel().selectedRows():
    #        print('Row %d is selected' % index.row())
    def handleSelectionChanged(self, index):                                      #
        if index.isValid():                                             #
            print('Row %d is selected' % index.row())                   #
if __name__ == '__main__':
    import sys
    app = QtGui.QApplication(sys.argv)
    window = Window(5, 5)
    window.show()
    window.setGeometry(600, 300, 600, 250)
    sys.exit(app.exec_())