QListView  怎么清空 里面的ITEM啊 用什么函数 [复制链接]

QListView  怎么清空 里面的ITEM啊 用什么函数

clear()

clear() 不是他的成员函数啊

不行，不是它的成员函数

model()->clear()

QListView::model()  返回QAbstractItemModel  ，而clear（） 也不是其成员函数

void QStandardItemModel::clear ()

Removes all items (including header items) from the model and sets the number of rows and columns to zero.

See also removeColumns() and removeRows().

bool QAbstractItemModel::removeRows ( int row, int count, const QModelIndex & parent = QModelIndex() )   [virtual]

On models that support this, removes count rows starting with the given row under parent parent from the model. Returns true if the rows were successfully removed; otherwise returns false.

The base class implementation does nothing and returns false.

If you implement your own model, you can reimplement this function if you want to support removing. Alternatively, you can provide you own API for altering the data.

See also removeRow(), removeColumns(), insertColumns(), beginRemoveRows(), and endRemoveRows().

OK，谢谢哦