C# 在 ListView WPF 中设置项目焦点
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Set Item Focus in ListView WPF
提问by jnovacho
is there any way to accomplish this functionality from WinForms in WPF?
有什么方法可以从 WPF 中的 WinForms 完成此功能吗？
ListView.FocusedItem = ListView.Items[itemToFocusIndex]
I'm trying to manually set focus(not select) on item in WPF ListView. From System.Windows.Controls. Thanks.
我正在尝试在 WPF ListView 中的项目上手动设置焦点（而不是选择）。从System.Windows.Controls。谢谢。
采纳答案by Adi Lester
There are two types of focus in WPF - Keyboard Focus and Logical Focus. This linkcan give you more information about focus in WPF.
WPF 中有两种类型的焦点 - 键盘焦点和逻辑焦点。此链接可为您提供有关 WPF 中焦点的更多信息。
You can either do this:
你可以这样做：
ListViewItem item = myListView.ItemContainerGenerator.ContainerFromIndex(index) as ListViewItem;
item.Focus();
It's also possible to call
也可以打电话
Keyboard.Focus(item);
If you also want to scroll the ListViewto the item's position, add this:
如果您还想滚动ListView到项目的位置，请添加以下内容：
myListView.ScrollIntoView(item);
IMPORTANT NOTE:For this to work, you will need to set VirtualizingStackPanel.IsVirtualizing="False"on your ListView, which may cause it to perform slower. The reason this attached property is required is that when the ListViewis virtualized (which it is by default), the ListViewItemsaren't created for items that aren't displayed on the screen, which will cause ContainerFromIndex()to return null.
重要说明：要使其正常工作，您需要在VirtualizingStackPanel.IsVirtualizing="False"上进行设置ListView，这可能会导致其执行速度变慢。需要此附加属性的原因是，当ListView虚拟化（默认情况下）时，ListViewItems不会为屏幕上未显示的项目创建 ，这将导致ContainerFromIndex()return null。
回答by Josh
I believe you can use Keyboard.FocusedElement to get the focused element in the listview.
我相信您可以使用 Keyboard.FocusedElement 来获取列表视图中的焦点元素。
Keyboard.FocusedElement
should return the focused element
应该返回焦点元素
回答by Zac
public void foucusItem( ListView.Item itemToFocusIndex){
int count = 0;
foreach(ListView.Item item in YourListView){
if(item == itemsToFocusIndex){
ListView.Items[count].Focus();
return;
}
count++;
}
}
回答by rony sc
//to set focus write
CollistView7.Items[TheIndItem].Selected = true;
CollistView7.Select();
CollistView7.Items[TheIndItem].Focused = true;
//when TheIndItem is the index
回答by Ahmad
ListView items are UIElements, so simply use UIElement.Focus(). e.g., listViewItem.Focus()or button.Focus()and so on.
ListView 项是 UIElements，因此只需使用UIElement.Focus(). 例如，listViewItem.Focus()或button.Focus()等等。
