[英]How to Get Many QComboBoxes' Text from QTableWidget
我已經使用setCellWidget將許多 QComboBox插入到QTableWidget中(我不知道qcombobox的數量,因為它來自MySQL)。 但是當我想從表中獲取其文本時
self.table.item(0,1).itemText()
要么
self.table.item(0,1).text()
要么
self.table.item(0,1).currentText()
它不起作用 。 通常,我可以使用combobox.currentText()
獲取文本,但是表中有很多組合框,而且我不知道行和列(x,y)的信息。 所以我應該使用類似.item(14,1).text()的東西
如果您使用過setCellWidget
,那么調用cellWidget(0,1)
而不是item(0,1)
將返回一個QWidget而不是QTableWidgetItem。
您可能需要將此QWidget強制轉換為QComboBox,但隨后您應該能夠調用currentText()
。
如果您想使用;
self.table.item(0,1).itemText()
要么
self.table.item(0,1).currentText()
要么
self.table.item(0,1).text()
我不能直接使用項目小部件。 我建議您使用項目委托QtGui.QItemDelegate
,有關更多信息,您可以在qt示例中搜索以實現此委托,並且我沒有什么例子,希望對您有所幫助;
import sys
from PyQt4 import QtGui, QtCore
class QCustomDelegate (QtGui.QItemDelegate):
def __init__(self, *args, **kwargs):
QtGui.QItemDelegate.__init__(self, *args, **kwargs)
self.listsData = ['Data 1', 'Data 2', 'Data 3']
def createEditor (self, parentQWidget, optionQStyleOptionViewItem, indexQModelIndex):
column = indexQModelIndex.column()
if column == 0:
editorQWidget = QtGui.QComboBox(parentQWidget)
editorQWidget.clear()
for data in self.listsData:
editorQWidget.addItem(data)
return editorQWidget
else:
return QtGui.QItemDelegate.createEditor(self, parentQWidget, optionQStyleOptionViewItem, indexQModelIndex)
def setEditorData (self, editorQWidget, indexQModelIndex):
column = indexQModelIndex.column()
if column == 0:
index, _ = indexQModelIndex.model().data(indexQModelIndex, QtCore.Qt.EditRole).toInt()
editorQWidget.setCurrentIndex(index)
else:
QtGui.QItemDelegate.setEditorData(self, editorQWidget, indexQModelIndex)
def setModelData (self, editorQWidget, modelQAbstractItemModel, indexQModelIndex):
column = indexQModelIndex.column()
if column == 0:
index = editorQWidget.currentIndex()
modelQAbstractItemModel.setData(indexQModelIndex, index, QtCore.Qt.EditRole)
else:
QtGui.QItemDelegate.setModelData(self, editorQWidget, modelQAbstractItemModel, indexQModelIndex)
def updateEditorGeometry(self, editorQWidget, optionQStyleOptionViewItem, indexQModelIndex):
column = indexQModelIndex.column()
if column == 0:
editorQWidget.setGeometry(optionQStyleOptionViewItem.rect)
else:
QtGui.QItemDelegate.updateEditorGeometry(self, editorQWidget, optionQStyleOptionViewItem, indexQModelIndex)
def paint (self, painterQPainter, optionQStyleOptionViewItem, indexQModelIndex):
column = indexQModelIndex.column()
if column == 0:
value, _ = indexQModelIndex.model().data(indexQModelIndex, QtCore.Qt.EditRole).toInt()
self.drawDisplay(painterQPainter, optionQStyleOptionViewItem, optionQStyleOptionViewItem.rect, QtCore.QString(self.listsData[value]));
else:
QtGui.QItemDelegate.paint(self, painterQPainter, optionQStyleOptionViewItem, indexQModelIndex)
class QCustomTableWidget (QtGui.QTableWidget):
def __init__ (self, parent = None):
super(QCustomTableWidget, self).__init__(parent)
# Setup row & column data
listsVerticalHeaderItem = ['Device 1', 'Device 2', 'Device 3', 'Device 4', 'Device 5']
self.setRowCount(len(listsVerticalHeaderItem))
for index in range(self.rowCount()):
self.setVerticalHeaderItem(index, QtGui.QTableWidgetItem(listsVerticalHeaderItem[index]))
self.setColumnCount(5)
listsHorizontalHeaderItem = ['Option 1', 'Option 2']
self.setColumnCount(len(listsHorizontalHeaderItem))
for index in range(self.columnCount()):
self.setHorizontalHeaderItem(index, QtGui.QTableWidgetItem(listsHorizontalHeaderItem[index]))
self.myQCustomDelegate = QCustomDelegate()
self.setItemDelegate(self.myQCustomDelegate)
# Test insert data
index = 2
self.setItem(0, 0, QtGui.QTableWidgetItem(str(index)))
# Test read data
index = int(self.item(0, 0).text())
print self.myQCustomDelegate.listsData[index]
if __name__ == '__main__':
myQApplication = QtGui.QApplication(sys.argv)
myQCustomTableWidget = QCustomTableWidget()
myQCustomTableWidget.show()
sys.exit(myQApplication.exec_())
QtGui.QItemDelegate
參考 : http : QtGui.QItemDelegate
Spin Box委托示例(C ++,您也可以在python中實現) : http : //qt-project.org/doc/qt-4.8/itemviews-spinboxdelegate.html
問候,
self.nameoftablewidget.cellWidget(row,col).currentText()
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