以编程方式在QTreeView中选择一行 [英] Selecting a row in QTreeView programmatically

问题描述

我有一个以QFileSystemModel作为模型的QTreeView。

I have a QTreeView with QFileSystemModel as model.

QTreeView的SelectionBehavior设置为SelectRows。

The QTreeView has SelectionBehavior set to SelectRows.

在我的代码中，我读取了一个数据集以进行选择，然后通过以下方式进行选择：

In my code I read a dataset to select and then select them via:

idx = treeview->model()->index(search); 
selection->select(idx, QItemSelectionModel::Select);

这将选择一个单元格，而不是该行。 。

This selects a cell, not the row . .

添加了一个愚蠢的解决方法，但宁愿以正确的方式解决此问题。

Have added a stupid workaround, but would rather fix this the correct way.

for (int col=0; col< treeview->model()->columnCount(); col++) 
{ 
   idx = treeview->model()->index(search, col); 
   selection->select(idx, QItemSelectionModel::Select); 
} 

还是这是唯一的^^方法？

Or is that ^^ the only way to do it?

推荐答案

还可以使用QItemSelection选择整行：

You can also select an entire row using an QItemSelection:

selection->select (
    QItemSelection (
        treeview->model ()->index (search, 0),
        treeview->model ()->index (search, treeview->model ()->columnCount () - 1)),
    QItemSelectionModel::Select);

此外，如果您还希望为用户点击选择行，则需要设置选择行为：

Also if you also want row selection for user clicks you need to set the selection behavior:

treeview->setSelectionBehavior (QAbstractItemView::SelectRows)

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