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我有這段代碼，當我在PyQt中運行它時，它的工作原理完全正常，但是當我在pyside中運行時，事情會變得更加奇怪。我得到所有列和行應該，如果我通過腳本去獲取數據，每個單元格說明它應該。但是，即使我將它們設置爲顯示角色，表格中沒有顯示任何文字。 標題中沒有，任何單元格中都沒有。我不知所措！PySide TableView和Variant數據 - 顯示角色不顯示
（對於茨艾倫納悶，NulLVariant（）剛剛返回無或取決於如果是在pyside或PyQt的的QVariant（））
這種模式是爲了採取日文N3 N4 N5到addRows的列表，並使用字典鍵製作專欄。
class CustomTableModel(QtCore.QAbstractTableModel):
def __init__(self, parent=None, parentTable=None):
"""
Custom data model for holding table data.
:param parent: The parent widget/layout so that this data model gets deleted properly on close.
:param parentTable: the table that is using this data. This is used to get the font metrics of the table
display font.
"""
super(CustomTableModel, self).__init__(parent)
self.parent_table = parentTable
self.auto_resize = False
self._avg_font_w = 5
self._resize_data = defaultdict(int)
self.items = []
self.headers = []
def setParentTable(self, widget):
"""
Sets the parent table widget so that we can get its font metrics for setting our column width with autoResize.
:param widget: TableViewWidget
:raise TypeError:
"""
if not isinstance(widget, QtGui.QTableView):
raise TypeError('Must be a TableView item')
self.parent_table = widget
def setAutoResize(self, b):
"""
Turns on or off auto resize for the table. This gathers the font metrics of the parent table, and then loops
over any current data, or newly added data (including table headers) to get the widest item, and sets the
column width to fit this.
:param b: bool
:raise AttributeError:
"""
if not self.parent_table:
raise AttributeError('You must call setParentTable first to set the parent TableView item')
self.auto_resize = b
if b:
self._autoAllResizeData()
self._doColumnResize()
else:
self._resize_data = dict()
def updateSize(self):
"""
Force the table size to update to the current size data.
"""
self._doColumnResize()
def updateSizeData(self):
"""
Force an update/regathering of all the size data for each row and column.
"""
self._autoAllResizeData(True)
self._doColumnResize()
def _doColumnResize(self):
for i in range(len(self.headers)):
txt = self.headers[i]
self.parent_table.setColumnWidth(i, self._resize_data.get(txt))
def _getKeyList(self):
if self.headers:
return self.headers
elif self.items:
return sorted(self.items[0].keys())
def _getTableFontWidth(self):
self._avg_font_w = self.parent_table.fontMetrics().averageCharWidth()
def _autoAllResizeData(self, reset=False):
if not self._resize_data or reset is True:
self._resize_data = defaultdict(int)
key_list = self._getKeyList()
for header in key_list:
header_width = len(header) * (self._avg_font_w * 1.55)
if header_width > self._resize_data[header]:
self._resize_data[header] = header_width
for item in self.items:
value = item.get(header)
width = len(str(value)) * self._avg_font_w
if width > self._resize_data[header]:
self._resize_data[header] = width
def _autoSingleResizeData(self, data):
key_list = self._getKeyList()
for header in key_list:
value = data.get(header)
if value:
width = len(str(value)) * self._avg_font_w
if width > self._resize_data[header]:
self._resize_data[header] = width
def setHeaders(self, items):
"""
This allows you to set your header item text
:param items: a list of header text, ie ['Name', 'Email', 'Department']
"""
lastCount = self.columnCount(QtCore.QModelIndex())
self.headers = items
self.beginRemoveColumns(QtCore.QModelIndex(), 0, lastCount)
for x in range(lastCount):
self.removeColumn(x)
self.endRemoveColumns()
self.beginInsertColumns(QtCore.QModelIndex(), 0, len(items)-1)
self.endInsertColumns()
def addRow(self, data):
"""
Accepts a dict of data to add to the data model.
:param data: dict (this should match the same key length/names as the other data in the table.)
"""
row = len(self.items)
self.beginInsertRows(QtCore.QModelIndex(), row, row)
self.items.append(data)
self.endInsertRows()
if self.auto_resize:
self._autoSingleResizeData(data)
self._doColumnResize()
def addRows(self, data):
"""
Accepts a list of dicts to add them all to the table, with each list index being a row, and each dict key
a column.
:param data: list of dicts
:raise ValueError:
"""
if not isinstance(data, list) or not isinstance(data[0], dict):
raise ValueError('input must be a list of dicts!')
start_row = len(self.items)
end_row = len(data) + start_row - 1
self.beginInsertRows(QtCore.QModelIndex(), start_row, end_row)
self.items.extend(data)
self.endInsertRows()
if self.auto_resize:
for item in data:
self._autoSingleResizeData(item)
self._doColumnResize()
def removeRow(self, row):
"""
Remove the row at index 'row'.
:param row: int
"""
self.beginRemoveRows(QtCore.QModelIndex(), row, row)
self.items.pop(row)
self.endRemoveRows()
def clear(self):
"""
Clear all table data and start fresh.
"""
rows = self.rowCount(QtCore.QModelIndex())
self.beginRemoveRows(QtCore.QModelIndex(), 0, rows)
self.items = []
self.endRemoveRows()
cols = self.columnCount(QtCore.QModelIndex())
self.beginRemoveColumns(QtCore.QModelIndex(), 0, cols)
self.headers = []
self.endRemoveColumns()
def rowCount(self, QModelIndex):
"""
Return the row count.
:param QModelIndex:
:return:
"""
return len(self.items)
def columnCount(self, QModelIndex):
"""
Return the column count (default 1)
:param QModelIndex:
:return:
"""
try:
return len(self.items[0].keys())
except:
return 1
def data(self, index, role):
"""
Accepts a QModelIndex and a Qt.Role and returns the data at the given modelIndex.
:param index: QModelIndex
:param role: QtCore.Qt.<Role>
:return:
"""
row = index.row()
col = index.column()
if role == QtCore.Qt.DisplayRole:
key_list = self._getKeyList()
return QtCore.QVariant(str(self.items[row][key_list[col]]))
return NullVariant()
def intGetData(self, row, col):
"""
Gets the data at 'row' and 'col'.
:param row: int
:param col: int
:return: QVariant() data.
"""
try:
key_list = self._getKeyList()
return QtCore.QVariant(str(self.items[row][key_list[col]]))
except:
return NullVariant()
def headerData(self, section, orientation, role):
"""
Sets the header data based on our header key list.
:param section: section header
:param orientation: orientation
:param role: Qt<Role>
:return:
"""
if role == QtCore.Qt.DisplayRole:
if orientation == QtCore.Qt.Horizontal:
if not self.items:
if section == 0:
return QtCore.QVariant(str("Column 1"))
else:
key_list = self._getKeyList()
try:
return QtCore.QVariant(str(key_list[section]))
except:
return QtCore.QVariant('No Data')
return NullVariant()
class CustomSortModel(QtGui.QSortFilterProxyModel):
def __init__(self, parent=None):
"""
Custom QSortFilterProxyModel to allow sorting and filtering of our custom data model.
:param parent: parent so that this model is deleted properly upon close.
"""
super(CustomSortModel, self).__init__(parent)
self.countAllColumns = False
self._sortingColumn = 0
def filterAcceptsRow(self, sourceRow, sourceParent):
"""
Overriding how we choose what rows match our input filter text.
:param sourceRow: row index in question
:param sourceParent: QModelIndex
:return: bool (accepted or not)
"""
txt = ''
if self.countAllColumns:
for x in range(len(self.sourceModel().headers)):
txt += self.sourceModel().intGetData(sourceRow, x).toString()
else:
txt = self.sourceModel().intGetData(sourceRow, self._sortingColumn).toString()
if self.filterRegExp().pattern():
b = bool(re.search(str(self.filterRegExp().pattern()), str(txt)))
else:
b = bool(re.search('.*', str(txt)))
return b
def setFilterKeyColumn(self, col):
"""
Sets which column index you want the filter to apply to. -1 or less means we search all columns - otherwise,
the filter rules apply to the column index given.
:param col: signed int
:return:
"""
if col <= -1:
self.countAllColumns = True
return
self.countAllColumns = False
self._sortingColumn = col
super(CustomSortModel, self).setFilterKeyColumn(col)
編輯： 我得到一個奇怪的錯誤，當我試圖刪除這個問題，但我添加了一個新的之一，用於測試的更好的減少這裏的例子：
https://stackoverflow.com/questions/34074825/pyside-qtableview-not-displaying-text-like-pyqt-does
我很困在這裏 - 爲着我的生活中看到發生了什麼！ – Alex
請不要發佈新問題，請修改此問題。 – Mel
當我在編輯時點擊保存並在刪除時重定向錯誤時，我不斷收到問題，當我添加大量文本時，爲什麼我只是添加了一個小行 - 我通常只是編輯。無論如何，現在解決和合並:) – Alex