当 DataGrid 接收键盘焦点时，将焦点放在 SelectedItem 的 DataGridCell 上 [英] Focus on DataGridCell for SelectedItem when DataGrid Receives Keyboard Focus

问题描述

我有一个 DataGrid，其中 SelectedItem 绑定到 VM Selected 属性.我有一个搜索控件可以进行查找，并且 DataGrid 的 SelectedItem 会发生变化(并滚动到视图中).WPF 4.0 和 DataGrid SelectionUnit="FullRow".

I have a DataGrid where the SelectedItem is bound to a VM Selected property. I have a search control that will do a find and the SelectedItem of the DataGrid changes (and scrolls into view). WPF 4.0 and DataGrid SelectionUnit="FullRow".

我的问题在于焦点.DataGrid 接收焦点(通过附加属性/绑定)，但您不能使用 Up、Down、Page Up、Page Down 键来改变行(SelectedItem).如果我再次使用 Tab，则会选择显示的第一行的第一个单元格，这会更改 SelectedItem.

My problem is with the focus. The DataGrid receives focus (via attached property / binding) but you can't use the Up, Down, Page Up, Page Down keys to change rows (SelectedItem). If I tab again, the first cell of the first row displayed is selected which changes the SelectedItem.

底线，当 DataGrid 获得焦点时，如何将键盘焦点赋予 SelectedItem 的 DataGridCell?

Bottom line, how can I give keyboard focus to the DataGridCell for the SelectedItem when the DataGrid receives focus?

有很多 DataGrid/Focus 问题，并且已经尝试了一些方法.感谢您的帮助.

There are so many DataGrid / Focus questions and tried a few things already. Thanks for your help.

推荐答案

你需要给新选择的行赋予逻辑焦点.选择新项目后，尝试将您的 SetFocus 调用替换为:

You need to give the newly selected row logical focus. After selecting the new item try replacing your SetFocus call with this:

        var selectedRow = (DataGridRow)dataGrid1.ItemContainerGenerator.ContainerFromIndex(dataGrid1.SelectedIndex);
        FocusManager.SetIsFocusScope(selectedRow, true);
        FocusManager.SetFocusedElement(selectedRow, selectedRow);

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