WPF中TreeView弹出ContextMenu如果让节点不失去焦点？

Question

如下图所示：【TreeView节点被选中并且有焦点时的样式】
【ContextMenu弹出后节点失去焦点时的样式】
除了改TreeViewItem模板样式之外，有没有其它简单的方法可以解决这种情况？如果定义TreeViewItem模板的话，怎么定义？谢谢。

Answer 1

private void treeView1_MouseDown(object sender, MouseEventArgs e)
{
    this.treeView1.SelectedNode = ((sender as TreeView).GetNodeAt(e.Location)) as TreeNode;
}

Answer 2

楼上有蹭分嫌疑啊。你的代码在WPF中肯定是不能用的。

Answer 3

http://blog.csdn.net/lhx527099095/article/details/7999116http://blog.csdn.net/lhx527099095/article/details/7999005对着里面的修改就是了 框架是有了你自己改下样式就ok

Answer 4

没注意是WPF。还以为是C#......

Answer 5

焦点的来源是鼠标， 你都把鼠标给了 快捷菜单了， 你还想叫 TreeNode也有 焦点这个 不呵护常理吧，你可以做 虚拟的，给样式吗 

Answer 6

http://msdn.microsoft.com/en-us/library/ms788727(v=vs.85).aspx从上面的链接可以找到默认的treeviewitem template
然后复制到你的project作为style加载然后去掉
<MultiTrigger>
    <MultiTrigger.Conditions>
        <Condition Property="IsSelected" Value="true"/>
        <Condition Property="IsSelectionActive" Value="false"/>
    </MultiTrigger.Conditions>
    <Setter TargetName="Bd" Property="Background" Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
    <Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
</MultiTrigger>这个trigger就是想表达当选择但不激活时设置background为controlBrushKey，去掉就能满足你的要求
May it helps.

Answer 7

完成了，非常感谢。修改过之后的完整模板代码如下：<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
                    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">    <!--=================================================================
      TreeViewItem
  ==================================================================-->
    <Style x:Key="ExpandCollapseToggleStyle" TargetType="ToggleButton">
        <Setter Property="Focusable" Value="False"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="ToggleButton">
                    <Grid
          Width="15"
          Height="13"
          Background="Transparent">
                        <Path x:Name="ExpandPath"
            HorizontalAlignment="Left" 
            VerticalAlignment="Center" 
            Margin="1,1,1,1"
            Fill="#444"
            Data="M 4 0 L 8 4 L 4 8 Z"/>
                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsChecked"
               Value="True">
                            <Setter Property="Data"
                TargetName="ExpandPath"
                Value="M 0 4 L 8 4 L 4 8 Z"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
    <Style x:Key="TreeViewItemFocusVisual">
        <Setter Property="Control.Template">
            <Setter.Value>
                <ControlTemplate>
                    <Border>
                        <Rectangle Margin="0,0,0,0"
                 StrokeThickness="5"
                 Stroke="Black"
                 StrokeDashArray="1 2"
                 Opacity="0"/>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
    <Style x:Key="{x:Type TreeViewItem}"
     TargetType="{x:Type TreeViewItem}">
        <Setter Property="Background"
      Value="Transparent"/>
        <Setter Property="HorizontalContentAlignment"
      Value="{Binding Path=HorizontalContentAlignment,
              RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
        <Setter Property="VerticalContentAlignment"
      Value="{Binding Path=VerticalContentAlignment,
              RelativeSource={RelativeSource AncestorType={x:Type ItemsControl}}}"/>
        <Setter Property="Padding"
      Value="1,0,0,0"/>
        <Setter Property="Foreground"
      Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
        <Setter Property="FocusVisualStyle"
      Value="{StaticResource TreeViewItemFocusVisual}"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type TreeViewItem}">
                    <Grid>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition MinWidth="19"
                      Width="Auto"/>
                            <ColumnDefinition Width="Auto"/>
                            <ColumnDefinition Width="*"/>
                        </Grid.ColumnDefinitions>
                        <Grid.RowDefinitions>
                            <RowDefinition Height="Auto"/>
                            <RowDefinition/>
                        </Grid.RowDefinitions>
                        <ToggleButton x:Name="Expander"
                  Style="{StaticResource ExpandCollapseToggleStyle}"
                  IsChecked="{Binding Path=IsExpanded,
                              RelativeSource={RelativeSource TemplatedParent}}"
                  ClickMode="Press"/>
                        <Border Name="Bd"
              Grid.Column="1"
              Background="{TemplateBinding Background}"
              BorderBrush="{TemplateBinding BorderBrush}"
              BorderThickness="{TemplateBinding BorderThickness}"
              Padding="{TemplateBinding Padding}">
                            <ContentPresenter x:Name="PART_Header"
                      ContentSource="Header"
                      HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"/>
                        </Border>
                        <ItemsPresenter x:Name="ItemsHost"
                  Grid.Row="1"
                  Grid.Column="1"
                  Grid.ColumnSpan="2"/>
                    </Grid>
                    <ControlTemplate.Triggers>
                        <Trigger Property="IsExpanded"
               Value="false">
                            <Setter TargetName="ItemsHost"
                Property="Visibility"
                Value="Collapsed"/>
                        </Trigger>
                        <Trigger Property="HasItems"
               Value="false">
                            <Setter TargetName="Expander"
                Property="Visibility"
                Value="Hidden"/>
                        </Trigger>
                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="HasHeader"
                     Value="false"/>
                                <Condition Property="Width"
                     Value="Auto"/>
                            </MultiTrigger.Conditions>
                            <Setter TargetName="PART_Header"
                Property="MinWidth"
                Value="75"/>
                        </MultiTrigger>
                        <MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="HasHeader"
                     Value="false"/>
                                <Condition Property="Height"
                     Value="Auto"/>
                            </MultiTrigger.Conditions>
                            <Setter TargetName="PART_Header"
                Property="MinHeight"
                Value="19"/>
                        </MultiTrigger>
                        <Trigger Property="IsSelected"
               Value="true">
                            <Setter TargetName="Bd"
                Property="Background"
                Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
                            <Setter Property="Foreground"
                Value="{DynamicResource {x:Static SystemColors.HighlightTextBrushKey}}"/>
                        </Trigger>
                        <!--<MultiTrigger>
                            <MultiTrigger.Conditions>
                                <Condition Property="IsSelected"
                     Value="true"/>
                                <Condition Property="IsSelectionActive"
                     Value="false"/>
                            </MultiTrigger.Conditions>
                            <Setter TargetName="Bd"
                Property="Background"
                Value="{DynamicResource {x:Static SystemColors.ControlBrushKey}}"/>
                            <Setter Property="Foreground"
                Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
                        </MultiTrigger>-->
                        <Trigger Property="IsEnabled"
               Value="false">
                            <Setter Property="Foreground"
                Value="{DynamicResource {x:Static SystemColors.GrayTextBrushKey}}"/>
                        </Trigger>
                    </ControlTemplate.Triggers>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</ResourceDictionary>
顺便感谢楼上的几位。结贴了。