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我试图让我的用户选择要打开的数据库。每个数据库将具有相同的模式。出于某种原因，虽然我无法让我的QTableView填充后，我打开数据库。qt - pyqt更改数据库时无法填充QTableView
我转述的示例代码，但是这应该给你什么，我试图做一个想法。
作品：
class aMainWindow(QMainWindow, Ui_MainWindow):
def __init__(self):
QMainWindow.__init__(self)
self.db = QSqlDatabase.addDatabase("QSQLITE")
self.db.setDatabaseName('testdb.db')
self.db.open()
# Set up the user interface from Designer.
self.setupUi(self)
#self.db.setDatabaseName('testdb.db')
self.model = QSqlTableModel(self)
self.model.setTable("records")
self.model.setSort(FILEORDER, Qt.AscendingOrder)
self.model.setHeaderData(ID, Qt.Horizontal, QVariant("ID"))
self.model.setHeaderData(FILEORDER, Qt.Horizontal, QVariant("File Order"))
self.model.setHeaderData(RECORDTYPE, Qt.Horizontal, QVariant("Type"))
self.model.setHeaderData(NAME, Qt.Horizontal, QVariant("Name"))
self.model.setHeaderData(PRESORTNAME, Qt.Horizontal, QVariant("Presort Name"))
self.model.setHeaderData(RECORD, Qt.Horizontal, QVariant("Record"))
self.model.select()
self.tableView.setModel(self.model)
#self.view.setSelectionMode(QTableView.SingleSelection)
#self.view.setSelectionBehavior(QTableView.SelectRows)
self.tableView.setColumnHidden(ID, True)
self.tableView.setColumnHidden(PRESORTNAME, True)
self.tableView.setColumnHidden(RECORD, True)
不起作用：
class aMainWindow(QMainWindow, Ui_MainWindow):
def __init__(self):
QMainWindow.__init__(self)
# Set up the user interface from Designer.
self.setupUi(self)
#self.db.setDatabaseName('testdb.db')
self.model = QSqlTableModel(self)
self.model.setTable("records")
self.model.setSort(FILEORDER, Qt.AscendingOrder)
self.model.setHeaderData(ID, Qt.Horizontal, QVariant("ID"))
self.model.setHeaderData(FILEORDER, Qt.Horizontal, QVariant("File Order"))
self.model.setHeaderData(RECORDTYPE, Qt.Horizontal, QVariant("Type"))
self.model.setHeaderData(NAME, Qt.Horizontal, QVariant("Name"))
self.model.setHeaderData(PRESORTNAME, Qt.Horizontal, QVariant("Presort Name"))
self.model.setHeaderData(RECORD, Qt.Horizontal, QVariant("Record"))
self.model.select()
self.tableView.setModel(self.model)
#self.view.setSelectionMode(QTableView.SingleSelection)
#self.view.setSelectionBehavior(QTableView.SelectRows)
self.tableView.setColumnHidden(ID, True)
self.tableView.setColumnHidden(PRESORTNAME, True)
self.tableView.setColumnHidden(RECORD, True)
#slot of the open db action
def on_actionOpen_DB_triggered(self, checked=None):
if checked is None: return
filename = QFileDialog.getOpenFileName(self, 'open a database',
'/home/',
"Databases (*.db)", #All Files (*.*)
"Databases (*.db)")
if not filename:
pass
self.db = QSqlDatabase.addDatabase("QSQLITE")
if self.db.isOpen():
sys.stdout.write('db still open?')
self.db.setDatabaseName(filename)
self.dbname = filename
self.db.open()
self.model.select()
#self.tableView.update()
if self.db.isOpen():
sys.stdout.write('db opened')