我无法在Windows Phone的密码框中居中对齐密码。中心对齐被禁用。有什么方法可以让我们把文字对齐到中间吗?
我尝试设置垂直内容对齐和水平内容对齐到中心，但它没有任何效果。或者可以在密码框的边框和密码之间设置一个空格。
Alfah
你可以编辑控件模板来达到这个效果:
<phone:PhoneApplicationPage
x:Class="PhoneApp3.MainPage"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone"
xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
d:DesignWidth="480"
d:DesignHeight="768"
FontFamily="{StaticResource PhoneFontFamilyNormal}"
FontSize="{StaticResource PhoneFontSizeNormal}"
Foreground="{StaticResource PhoneForegroundBrush}"
SupportedOrientations="Portrait"
Orientation="Portrait"
shell:SystemTray.IsVisible="True">
<phone:PhoneApplicationPage.Resources>
<ControlTemplate
x:Key="PhoneDisabledPasswordBoxTemplate"
TargetType="PasswordBox">
<Border
x:Name="ContentElement"
BorderThickness="0"
Margin="{StaticResource PhonePasswordBoxInnerMargin}"
Padding="{TemplateBinding Padding}" />
</ControlTemplate>
<Style
x:Key="PasswordBoxStyle1"
TargetType="PasswordBox">
<Setter
Property="FontFamily"
Value="{StaticResource PhoneFontFamilyNormal}" />
<Setter
Property="FontSize"
Value="{StaticResource PhoneFontSizeMediumLarge}" />
<Setter
Property="Background"
Value="{StaticResource PhoneTextBoxBrush}" />
<Setter
Property="Foreground"
Value="{StaticResource PhoneTextBoxForegroundBrush}" />
<Setter
Property="BorderBrush"
Value="{StaticResource PhoneTextBoxBrush}" />
<Setter
Property="BorderThickness"
Value="{StaticResource PhoneBorderThickness}" />
<Setter
Property="SelectionBackground"
Value="{StaticResource PhoneAccentBrush}" />
<Setter
Property="SelectionForeground"
Value="{StaticResource PhoneContrastBackgroundBrush}" />
<Setter
Property="Padding"
Value="2" />
<Setter
Property="Template">
<Setter.Value>
<ControlTemplate
TargetType="PasswordBox">
<Grid
Background="Transparent">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup
x:Name="CommonStates">
<VisualState
x:Name="Normal" />
<VisualState
x:Name="MouseOver" />
<VisualState
x:Name="Disabled">
<Storyboard>
<ObjectAnimationUsingKeyFrames
Storyboard.TargetProperty="Visibility"
Storyboard.TargetName="EnabledBorder">
<DiscreteObjectKeyFrame
KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Collapsed</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames
Storyboard.TargetProperty="Visibility"
Storyboard.TargetName="DisabledBorder">
<DiscreteObjectKeyFrame
KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
<VisualStateGroup
x:Name="FocusStates">
<VisualState
x:Name="Focused">
<Storyboard>
<ObjectAnimationUsingKeyFrames
Storyboard.TargetProperty="Background"
Storyboard.TargetName="EnabledBorder">
<DiscreteObjectKeyFrame
KeyTime="0"
Value="{StaticResource PhoneTextBoxEditBackgroundBrush}" />
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames
Storyboard.TargetProperty="BorderBrush"
Storyboard.TargetName="EnabledBorder">
<DiscreteObjectKeyFrame
KeyTime="0"
Value="{StaticResource PhoneTextBoxEditBorderBrush}" />
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState
x:Name="Unfocused" />
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border
x:Name="EnabledBorder"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Background="{TemplateBinding Background}"
Margin="{StaticResource PhoneTouchTargetOverhang}">
<Border
x:Name="ContentElement"
HorizontalAlignment="Center"
BorderThickness="0"
Margin="{StaticResource PhonePasswordBoxInnerMargin}"
Padding="{TemplateBinding Padding}" />
</Border>
<Border
x:Name="DisabledBorder"
BorderBrush="{StaticResource PhoneDisabledBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
Background="Transparent"
Margin="{StaticResource PhoneTouchTargetOverhang}"
Visibility="Collapsed">
<PasswordBox
x:Name="DisabledContent"
HorizontalAlignment="Center"
Background="Transparent"
Foreground="{StaticResource PhoneDisabledBrush}"
Password="{TemplateBinding Password}"
PasswordChar="{TemplateBinding PasswordChar}"
Template="{StaticResource PhoneDisabledPasswordBoxTemplate}" />
</Border>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</phone:PhoneApplicationPage.Resources>
<!--LayoutRoot is the root grid where all page content is placed-->
<Grid
x:Name="LayoutRoot"
Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition
Height="Auto" />
<RowDefinition
Height="*" />
</Grid.RowDefinitions>
<!--TitlePanel contains the name of the application and page title-->
<StackPanel
x:Name="TitlePanel"
Grid.Row="0"
Margin="12,17,0,28">
<TextBlock
x:Name="ApplicationTitle"
Text="MY APPLICATION"
Style="{StaticResource PhoneTextNormalStyle}" />
<TextBlock
x:Name="PageTitle"
Text="page name"
Margin="9,-7,0,0"
Style="{StaticResource PhoneTextTitle1Style}" />
</StackPanel>
<!--ContentPanel - place additional content here-->
<Grid
x:Name="ContentPanel"
Grid.Row="1"
Margin="12,0,12,0">
<PasswordBox
VerticalAlignment="Center"
Style="{StaticResource PasswordBoxStyle1}" />
</Grid>
</Grid>
</phone:PhoneApplicationPage>