Pyside，PyQt4:如何在 QTableView 中编辑单元格时设置验证器 [英] Pyside, PyQt4: How to set a validator when editing a cell in a QTableView

问题描述

在 QLineEdit 对象中，我可以像这样设置 RegExp 验证器:

In QLineEdit objects I can set a RegExp validator like this:

validator = QtGui.QRegExpValidator(QtCore.QRegExp("\d{11}"), lineedit)
lineedit.setValidator(validator)

如何在 QTableView 上编辑单元格时设置类似的验证器?

How can I set a similar validator when I edit a cell on a QTableView?

推荐答案

通过继承 QStyledItemDelegate 并重新实现 createEditor 方法:

By subclassing QStyledItemDelegate and reimplementing the createEditor method:

class ValidatedItemDelegate(QtGui.QStyledItemDelegate):
    def createEditor(self, widget, option, index):
        if not index.isValid():
            return 0
        if index.column() == 0: #only on the cells in the first column
            editor = QtGui.QLineEdit(widget)
            validator = QtGui.QRegExpValidator(QtCore.QRegExp("\d{11}"), editor)
            editor.setValidator(validator)
            return editor
        return super(ValidatedItemDelegate, self).createEditor(widget, option, index)

然后你可以像这样设置验证器:

Then you can set the validator like this:

tableview.setItemDelegate(ValidatedItemDelegate())

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