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我试图在我的表格单元格中使用自动完成器并且它正在工作但是当我向表格添加新行时问题出现了， 1.如何向新创建的行添加相同的功能？我使用_addRow方法添加新行。 2.如何将此功能添加到表格的第二列或第三列？在这里，我self.locs用于第一列，我需要某样东西self.tech来匹配第二列。这是代码：

class TableItemCompleter(QStyledItemDelegate):
    def createEditor(self, parent, option, index):
        editor = QLineEdit(parent)
        completionlist = index.data(Qt.UserRole)
        autoCompleter = QCompleter(completionlist,parent)
        autoCompleter.setCaseSensitivity(Qt.CaseInsensitive)
        autoCompleter.setFilterMode(Qt.MatchContains)
        editor.setCompleter(autoCompleter)
        return editor

class TableWidget(QTableWidget):
    def __init__(self, df, action='Edit'):
        super().__init__()
        self.df = df
        self.setStyleSheet('font-size:15px;')
        # Set table dimensions
        rows, cols = self.df.shape
        if action == 'Edit':
            pass
        elif action == 'Append':
            n = 4 # number of rows
            self.setRowCount(n)
            self.setColumnCount(cols)
            self.locs = self.df['LOCATION'].unique().tolist()
            #tech = self.df['TECHNOLOGY'].unique().tolist()

            self.setHorizontalHeaderLabels(list(self.df.columns))
            self.verticalHeader().setDefaultSectionSize(50)
            self.horizontalHeader().setDefaultSectionSize(200)
            self.setItemDelegateForColumn(0, TableItemCompleter())
            #self.setItemDelegateForColumn(TableItemCompleter(), 2)# how can I have it for second col?
            for row in range(n-1):
                for col in range(self.columnCount()):
                    item = QTableWidgetItem('')#str(self.df.tail(n-1).iloc[row,col]))
                    item.setData(Qt.UserRole, self.locs)
                    self.setItem(row, col, item)
                    #self.setItem(row, col, QTableWidgetItem(str(self.df.tail(2).iloc[row,col])))
            self.cellChanged[int, int].connect(self.update_df)
            #self.setItemDelegate(TableItemCompleter())
        else: 
            pass
    
    def _addRow(self):
        rowCount = self.rowCount()
        self.insertRow(rowCount)

谢谢 ：）

4

1 回答 1

1

Since the list of completer strings is the same for each column of the model, there's no use in setting that data on the index. A better solution is to initialize the delegate with a "matrix" of completions based on the columns.

CompletionKeys = {
    0: 'LOCATION', 
    1: 'TECHNOLOGY', 
    2: ...
}

class TableItemCompleter(QStyledItemDelegate):
    def __init__(self, completionMap, parent=None):
        super().__init__(parent)
        self.completers = {}
        for column, completionList in completionMap.items():
            completer = QCompleter(completionList, self)
            completer.setCaseSensitivity(Qt.CaseInsensitive)
            completer.setFilterMode(Qt.MatchContains)
            self.completers[column] = completer


    def createEditor(self, parent, option, index):
        editor = QLineEdit(parent)
        if index.column() in self.completers:
            editor.setCompleter(self.completers[index.column()])
        return editor


class TableWidget(QTableWidget):
    def __init__(self, df, action='Edit'):
        super().__init__()
        self.df = df
        self.setStyleSheet('font-size:15px;')
        # Set table dimensions
        rows, cols = self.df.shape
        if action == 'Edit':
            pass
        elif action == 'Append':
            n = 4 # number of rows
            self.setRowCount(n)
            self.setColumnCount(cols)

            self.setHorizontalHeaderLabels(list(self.df.columns))
            self.verticalHeader().setDefaultSectionSize(50)
            self.horizontalHeader().setDefaultSectionSize(200)
            for row in range(n-1):
                for col in range(cols):
                    item = QTableWidgetItem('')
                    self.setItem(row, col, item)

            completionMap = {}
            for col in range(cols):
                key = CompletionKeys.get(col)
                if key:
                    completionMap[col] = self.df[key].unique().tolist()
            self.setItemDelegate(TableItemCompleter(completionMap, self))

            self.cellChanged[int, int].connect(self.update_df)
于 2021-03-09T10:25:58.547 回答