按下上/下按钮后对焦网格 [英] Focus grid after up/down button pressed

问题描述

您好！



按下上/下按钮（来自键盘）后焦点gridView项目出现问题。

我有文本框使用textchanged事件，所以当我更改文本时，它正在寻找包含textbox.text的datagrid中的项目 - 这项工作很棒。但是现在，当我向上/向下按箭头时，我想要关注dataGrid的第一个元素。

所以在代码中它应该是这样的：

Hello!

I have problems with focus gridView item after up/down button (from keyboard) pressed.
I have textbox with textchanged event, so when i change text, it's looking for items in datagrid which contains textbox.text - that work's great. But now, when i press up/down arrow i'd like to focus first element of dataGrid.
So in code it should be something like:

private void Window_PreviewKeyDown_1(object sender, KeyEventArgs e)
        {
            if (e.Key == Key.Down || e.Key == Key.Up)
            {
//raise only when nothing is selected, otherway just move selection item in gridview up/down
                if(myDG.SelectedItem == null)
                    myDG.SelectedIndex = 0;
            }
        {

实际上我可以看到它已被选中，但项目背景是灰色的，而不是蓝色。



感谢您的帮助！

And actually I can see that it's getting selected, but item background is gray, not blue.

Thanks for any help!

推荐答案

您好！



您是否尝试过首先关注它？

Hello!

Did you try get focus on it first?

myDG.Focus();
myDG.SelectedIndex = 0;

这篇关于按下上/下按钮后对焦网格的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！