PasswordBox不承担样式

Question

我有以下样式定义：

<!-- Border -->
<Style x:Key="MyControlBorder" TargetType="{x:Type Border}">
    <Setter Property="BorderBrush" Value="DarkKhaki" />
    <Setter Property="Background" Value="White" />
    <Setter Property="BorderThickness" Value="1" />
    <Setter Property="CornerRadius" Value="10" />
</Style>

<!-- TextBox -->
<Style x:Key="MyTextBox" TargetType="{x:Type TextBox}">
    <Setter Property="Height" Value="30" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type TextBoxBase}">
                <Border Name="TextBoxBorder" Style="{StaticResource MyControlBorder}">
                    <ScrollViewer x:Name="PART_ContentHost"/>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

<!-- PasswordBox -->
<Style x:Key="MyPasswordBox" TargetType="{x:Type PasswordBox}">
    <Setter Property="Height" Value="30" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type Control}">
                <Border Name="Border" Style="{StaticResource MyControlBorder}">
                    <ScrollViewer x:Name="PART_ContentHost" />
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

以及以下xaml代码：

<Grid>
    <Grid.RowDefinitions>
        <RowDefinition Height="*" />
        <RowDefinition Height="*" />
    </Grid.RowDefinitions>
    <TextBox Grid.Row="0" Style="{StaticResource MyTextBox}" />
    <PasswordBox Grid.Row="1" Style="{StaticResource MyPasswordBox}" />
</Grid>

现在我得到了这个结果：

TextBox正确地假定了样式，但为什么PasswordBox不承担样式？

Answer 1

如果你将Border包裹在另一个Border中，一切都按预期工作（我不知道为什么）。

作为奖励，您现在可以PasswordBox es和TextBox es“继承”来自同一个Style，保持良好和干燥。

<!-- Border Style Definition -->
<Style x:Key="MyControlBorder" TargetType="Border">
    <Setter Property="BorderBrush" Value="DarkKhaki" />
    <Setter Property="Background" Value="White" />
    <Setter Property="BorderThickness" Value="1" />
    <Setter Property="CornerRadius" Value="10" />
</Style>

<!-- TextBox and PasswordBox Style -->
<Style x:Key="MyControlInputBox" TargetType="Control">
    <Setter Property="Height" Value="30" />
    <Setter Property="Template">
        <Setter.Value>
            <ControlTemplate TargetType="{x:Type Control}">
                <Border>
                    <Border Name="Border" Style="{StaticResource MyControlBorder}">
                        <ScrollViewer x:Name="PART_ContentHost" />
                    </Border>
                </Border>
            </ControlTemplate>
        </Setter.Value>
    </Setter>
</Style>

<!-- TextBox -->
<Style x:Key="MyTextBox" TargetType="{x:Type TextBox}" BasedOn="{StaticResource MyControlInputBox}" />

<!-- PasswordBox -->
<Style x:Key="MyPasswordBox" TargetType="{x:Type PasswordBox}" BasedOn="{StaticResource MyControlInputBox}" />

Answer 2

Border ControlTemplate PasswordBox内的MyControlBorder不会采用MyPasswordBox样式。

当你像这样修改<Style x:Key="MyPasswordBox" TargetType="{x:Type PasswordBox}"> <Setter Property="Height" Value="30" /> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type Control}"> <Border Name="Border" BorderBrush="DarkKhaki" Background="White" BorderThickness="1" CornerRadius="10"> <ScrollViewer x:Name="PART_ContentHost" /> </Border> </ControlTemplate> </Setter.Value> </Setter> 样式时......它会起作用。

MyControlBorder

我知道这不是最好的解决方案......但我无法弄清楚为什么不应用MyTextBox。当你摆脱MyControlBorder风格时，它甚至不起作用。然后，您只能使用MyPasswordBox和{{1}} ...它也不起作用。