小编imm*_*ner的帖子

如果我设置SizeToContent为WidthAndHeight,则WindowStartupLocation="CenterOwner"无法正常工作.而不是新窗口的中心位于其父所有者的中心,它看起来更像是子窗口的左上角位于父窗口的中心.如果我删除SizeToContent然后一切都好.怎么了？

我想覆盖元素触发器,因此,当单击文本框时,它会更改父边框的属性.

但是无法识别父目标名称.这是代码示例:

   <Style x:Key="customstyle" TargetType="{x:Type local:customcontrol}">
    <Setter Property="Background" Value="{StaticResource DownGradientBrush}"/>
    <Setter Property="BorderBrush" Value="{StaticResource DownGradientBorder}"/>
    <Setter Property="Foreground" Value="{StaticResource TextBoxForeground}"/>
    <Setter Property="HorizontalAlignment" Value="Center"/>
    <Setter Property="VerticalAlignment" Value="Center"/>
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type local:customcontrol}">
                <Border x:Name="Bd" BorderBrush="{TemplateBinding BorderBrush}">
                    <Grid>
                        <Grid.RowDefinitions>
                            <RowDefinition/>
                            <RowDefinition/>
                        </Grid.RowDefinitions>
                        <Grid.ColumnDefinitions>
                            <ColumnDefinition Width="*"/>
                            <ColumnDefinition Width="15"/>
                        </Grid.ColumnDefinitions>
                        <Border Grid.Column="0" 
                                Grid.RowSpan="2"
                                HorizontalAlignment="Stretch">
    <TextBox x:Name="TextBox"
             Grid.Column="0" 
             Grid.RowSpan="2"
             Text="{Binding RelativeSource={x:Static RelativeSource.TemplatedParent}, Path=Value}"
             Width="Auto"
             Height="Auto">
        <TextBox.Style>
            <Style BasedOn="{StaticResource StyleTextBox}" TargetType="{x:Type TextBox}">
                <Style.Triggers>
                    <Trigger Property="IsFocused" Value="True">
                        <Setter TargetName="Bd" 
                                Property="Background" 
                                Value="{StaticResource CustomGradientBorder}" />
                    </Trigger>
                    <Trigger Property="IsFocused" Value="True" /> …