我们可以使用self.tableView.setSelectionMode(QAbstractItemView.ExtendedSelection)从QTableView中选择多个项目（部分行和部分列），但是在选择了一些行和列（部分和部分）后，如果我执行 CTRL + C 并将其粘贴到记事本中它只粘贴一个项目（tableView中的一个值）？
我的代码：
tab_table_view = QtGui.QWidget()
self.Tab.insertTab(0, tab_table_view, self.File_Name)
self.tableView = QtGui.QTableView(tab_table_view)
self.tableView.setGeometry(QtCore.QRect(0, 0, 721, 571))
self.model = QtGui.QStandardItemModel(self)
self.model.setSortRole(QtCore.Qt.UserRole)
self.tableView.setModel(self.model)
self.tableView.setSelectionMode(QAbstractItemView.ExtendedSelection) '''this helps for selecting multiple items but not able to copy and paste multiple values to a text/ excel (it only copies single value)'''
我们如何复制和粘贴多个项目？
答案 0 :(得分：3)
self.tableView.installEventFilters(self)
现在，添加事件过滤器：
def eventFilter(self, source, event):
if (event.type() == QtCore.QEvent.KeyPress and
event.matches(QtGui.QKeySequence.Copy)):
self.copySelection()
return True
return super(Window, self).eventFilter(source, event)
复制功能：
def copySelection(self):
selection = self.tableView.selectedIndexes()
if selection:
rows = sorted(index.row() for index in selection)
columns = sorted(index.column() for index in selection)
rowcount = rows[-1] - rows[0] + 1
colcount = columns[-1] - columns[0] + 1
table = [[''] * colcount for _ in range(rowcount)]
for index in selection:
row = index.row() - rows[0]
column = index.column() - columns[0]
table[row][column] = index.data()
stream = io.StringIO()
csv.writer(stream).writerows(table)
QtGui.qApp.clipboard().setText(stream.getvalue())
ekhumoro回答，同样的问题再次提出。
答案 1 :(得分：1)
<强> QAbstractItemView.ExtendedSelection 当用户以通常方式选择项目时，清除选择并选择新项目。但是，如果用户在单击某个项目时按下Ctrl键，则单击的项目将切换，所有其他项目将保持未触及。如果用户在单击项目时按下 Shift键，则根据所单击项目的状态选择或取消选择当前项目和单击项目之间的所有项目。可以通过将鼠标拖过它们来选择多个项目。 你也可以用
QAbstractItemView.MultiSelection
答案 2 :(得分：0)
非常感谢上面的@learncode评论，我设法获得了复制部分。移动器，我修改了一点以支持使用相应的单元格顺序复制到Excel：
def copySelection(self):
selection = self.selectedIndexes()
if selection:
rows = sorted(index.row() for index in selection)
columns = sorted(index.column() for index in selection)
rowcount = rows[-1] - rows[0] + 1
colcount = columns[-1] - columns[0] + 1
table = [[''] * colcount for _ in range(rowcount)]
for index in selection:
row = index.row() - rows[0]
column = index.column() - columns[0]
table[row][column] = index.data()
stream = io.StringIO()
csv.writer(stream, delimiter='\t').writerows(table)
QtWidgets.qApp.clipboard().setText(stream.getvalue())
return
除了复制外，我还创建粘贴部分。根据用户选择的单元格范围（一个单元格或单元格范围），此代码段支持粘贴不同形状的数据。
def pasteSelection(self):
selection = self.selectedIndexes()
if selection:
model = self.model()
buffer = QtWidgets.qApp.clipboard().text()
rows = sorted(index.row() for index in selection)
columns = sorted(index.column() for index in selection)
reader = csv.reader(io.StringIO(buffer), delimiter='\t')
if len(rows) == 1 and len(columns) == 1:
for i, line in enumerate(reader):
for j, cell in enumerate(line):
model.setData(model.index(rows[0]+i,columns[0]+j), cell)
else:
arr = [ [ cell for cell in row ] for row in reader]
for index in selection:
row = index.row() - rows[0]
column = index.column() - columns[0]
model.setData(model.index(index.row(), index.column()), arr[row][column])
return
答案 3 :(得分：0)
此答案扩展了@learncode 和@Frederick Li 的答案，以适应以下情况
它还包含扩展事件过滤器以处理粘贴的代码。
class TableView(QTableView):
def __init__(self, *args, **kwargs):
super(TableView, self).__init__(*args, **kwargs)
self.installEventFilter(self)
def eventFilter(self, source, event):
if event.type() == QEvent.KeyPress and event.matches(QKeySequence.Copy):
self.copy_selection()
return True
elif event.type() == QEvent.KeyPress and event.matches(QKeySequence.Paste):
self.paste_selection()
return True
return super(TableView, self).eventFilter(source, event)
def copy_selection(self):
selection = self.selectedIndexes()
if selection:
all_rows = []
all_columns = []
for index in selection:
if not index.row() in all_rows:
all_rows.append(index.row())
if not index.column() in all_columns:
all_columns.append(index.column())
visible_rows = [row for row in all_rows if not self.isRowHidden(row)]
visible_columns = [
col for col in all_columns if not self.isColumnHidden(col)
]
table = [[""] * len(visible_columns) for _ in range(len(visible_rows))]
for index in selection:
if index.row() in visible_rows and index.column() in visible_columns:
selection_row = visible_rows.index(index.row())
selection_column = visible_columns.index(index.column())
table[selection_row][selection_column] = index.data()
stream = io.StringIO()
csv.writer(stream, delimiter="\t").writerows(table)
QApplication.clipboard().setText(stream.getvalue())
def paste_selection(self):
selection = self.selectedIndexes()
if selection:
model = self.model()
buffer = QApplication.clipboard().text()
all_rows = []
all_columns = []
for index in selection:
if not index.row() in all_rows:
all_rows.append(index.row())
if not index.column() in all_columns:
all_columns.append(index.column())
visible_rows = [row for row in all_rows if not self.isRowHidden(row)]
visible_columns = [
col for col in all_columns if not self.isColumnHidden(col)
]
reader = csv.reader(io.StringIO(buffer), delimiter="\t")
arr = [[cell for cell in row] for row in reader]
if len(arr) > 0:
nrows = len(arr)
ncols = len(arr[0])
if len(visible_rows) == 1 and len(visible_columns) == 1:
# Only the top-left cell is highlighted.
for i in range(nrows):
insert_rows = [visible_rows[0]]
row = insert_rows[0] + 1
while len(insert_rows) < nrows:
row += 1
if not self.isRowHidden(row):
insert_rows.append(row)
for j in range(ncols):
insert_columns = [visible_columns[0]]
col = insert_columns[0] + 1
while len(insert_columns) < ncols:
col += 1
if not self.isColumnHidden(col):
insert_columns.append(col)
for i, insert_row in enumerate(insert_rows):
for j, insert_column in enumerate(insert_columns):
cell = arr[i][j]
model.setData(model.index(insert_row, insert_column), cell)
else:
# Assume the selection size matches the clipboard data size.
for index in selection:
selection_row = visible_rows.index(index.row())
selection_column = visible_columns.index(index.column())
model.setData(
model.index(index.row(), index.column()),
arr[selection_row][selection_column],
)
return