QSortFilterProxyModel 不适用 Caseinsensitive

Question

由于我将 QSortFilterModel 子类化以便能够搜索 QListView 中的多个列，因此 CaseInsensitive 选项不再有效。我尝试按如下方式应用它：

class CustomSortFilterProxyModel(QtCore.QSortFilterProxyModel):
    def __init__(self, parent=None):
        super(CustomSortFilterProxyModel, self).__init__(parent)
        self.filterString = ''
        self.filterFunctions = {} 
        self.setFilterCaseSensitivity(QtCore.Qt.CaseInsensitive) #Applied here



    def setFilterString(self, text):

        self.filterString = str(text)
        self.setFilterCaseSensitivity(QtCore.Qt.CaseInsensitive)    #And applied here
        self.invalidateFilter()

    def filterAcceptsRow(self, row_num, parent):

        self.filterColumns = [1,3]    
        model = self.sourceModel()  
        row = model.row(row_num)
        tests = [self.filterString in row[col] for col in self.filterColumns]

        return True in tests

为什么我的搜索字符串区分大小写？

Answer 1

您在此处设置的敏感度仅适用于默认 filterAcceptsRow 实施。如果您覆盖它，您需要自己处理，方法是：

return any(self.filterString.casefold() in row[col].casefold() for col in self.filterColumns))

（参见 str.casefold docs）

QSortFilterProxyModel 不适用 Caseinsensitive

QSortFilterProxyModel does not apply Caseinsensitive

qsortfilterproxymodel

pyqt5

python-3.6