QPersistentModelIndex¶
The
QPersistentModelIndex
class is used to locate data in a data model. More…
Synopsis¶
Functions¶
def
__eq__
(other)def
__eq__
(other)def
__lt__
(other)def
__ne__
(other)def
__ne__
(other)def
child
(row, column)def
column
()def
data
([role=Qt.DisplayRole])def
flags
()def
internalId
()def
internalPointer
()def
isValid
()def
model
()def
operator=
(other)def
parent
()def
row
()def
sibling
(row, column)def
swap
(other)
Detailed Description¶
A
QPersistentModelIndex
is a model index that can be stored by an application, and later used to access information in a model. Unlike theQModelIndex
class, it is safe to store aQPersistentModelIndex
since the model will ensure that references to items will continue to be valid as long as they can be accessed by the model.It is good practice to check that persistent model indexes are valid before using them.
Note
You cannot store a
QStandardItemModel
‘sQPersistentModelIndex
in one of the model’s items.
- class PySide2.QtCore.QPersistentModelIndex¶
PySide2.QtCore.QPersistentModelIndex(index)
PySide2.QtCore.QPersistentModelIndex(other)
- Parameters:
index –
PySide2.QtCore.QModelIndex
- PySide2.QtCore.QPersistentModelIndex.child(row, column)¶
- Parameters:
row – int
column – int
- Return type:
Note
This function is deprecated.
Use
index()
instead.Returns the child of the model index that is stored in the given
row
andcolumn
.
- PySide2.QtCore.QPersistentModelIndex.column()¶
- Return type:
int
Returns the column this persistent model index refers to.
- PySide2.QtCore.QPersistentModelIndex.data([role=Qt.DisplayRole])¶
- Parameters:
role – int
- Return type:
object
Returns the data for the given
role
for the item referred to by the index.See also
ItemDataRole
setData()
- PySide2.QtCore.QPersistentModelIndex.flags()¶
- Return type:
ItemFlags
Returns the flags for the item referred to by the index.
- PySide2.QtCore.QPersistentModelIndex.internalId()¶
- Return type:
quintptr
- PySide2.QtCore.QPersistentModelIndex.internalPointer()¶
- Return type:
void
- PySide2.QtCore.QPersistentModelIndex.isValid()¶
- Return type:
bool
Returns
true
if this persistent model index is valid; otherwise returnsfalse
.A valid index belongs to a model, and has non-negative row and column numbers.
- PySide2.QtCore.QPersistentModelIndex.model()¶
- Return type:
Returns the model that the index belongs to.
- PySide2.QtCore.QPersistentModelIndex.__ne__(other)¶
- Parameters:
other –
PySide2.QtCore.QModelIndex
- Return type:
bool
- PySide2.QtCore.QPersistentModelIndex.__ne__(other)
- Parameters:
- Return type:
bool
- PySide2.QtCore.QPersistentModelIndex.__lt__(other)¶
- Parameters:
- Return type:
bool
- PySide2.QtCore.QPersistentModelIndex.operator=(other)
- Parameters:
other –
PySide2.QtCore.QModelIndex
- Return type:
- PySide2.QtCore.QPersistentModelIndex.__eq__(other)¶
- Parameters:
other –
PySide2.QtCore.QModelIndex
- Return type:
bool
- PySide2.QtCore.QPersistentModelIndex.__eq__(other)
- Parameters:
- Return type:
bool
- PySide2.QtCore.QPersistentModelIndex.parent()¶
- Return type:
Returns the parent
QModelIndex
for this persistent index, or an invalidQModelIndex
if it has no parent.
- PySide2.QtCore.QPersistentModelIndex.row()¶
- Return type:
int
Returns the row this persistent model index refers to.
- PySide2.QtCore.QPersistentModelIndex.sibling(row, column)¶
- Parameters:
row – int
column – int
- Return type:
Returns the sibling at
row
andcolumn
or an invalidQModelIndex
if there is no sibling at this position.See also
- PySide2.QtCore.QPersistentModelIndex.swap(other)¶
- Parameters:
Swaps this persistent modelindex with
other
. This function is very fast and never fails.
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