我有一个带有 XAML 的 WPF TreeView,如下所示:
<TreeView x:Name="twElements">
<TreeView.Resources>
<v8r:IconTypeConverter x:Key="IconConverter"/>
</TreeView.Resources>
<TreeView.ItemContainerStyle>
<Style TargetType="{x:Type TreeViewItem}">
<EventSetter Event="MouseDoubleClick" Handler="twElements_MouseDoubleClick" />
</Style>
</TreeView.ItemContainerStyle>
<TreeView.ItemTemplate>
<HierarchicalDataTemplate ItemsSource="{Binding ChildItems}">
<StackPanel Orientation="Horizontal">
<Image Source="{Binding Icon, Converter={StaticResource IconConverter}}"/>
<TextBlock Text="{Binding Text}" Margin="3,0,0,0"/>
</StackPanel>
</HierarchicalDataTemplate>
</TreeView.ItemTemplate>
任务是在双击子项后打开某个表单。
DoubleClick 事件的代码隐藏:
private void twElements_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
if (e.Source is TreeViewItem && ((TreeViewItem)e.Source).IsSelected)
{
e.Handled = true;
var twi = (TreeViewItem)e.Source;
var Editable = twi.Header as IEditable;
if (Editable != null)
{
Window Editor = Editable.GetEditor();
Editor.Show(); // Editor is a WPF.Window
}
}
}
问题:打开所需窗口后,带有树视图的表单会自行激活,使新窗口成为背景。如何使新窗口保持活动状态?