如何在 wpf C# 中隐藏日期选择器图标？

【问题标题】：How to hide datepicker icon in wpf C#?如何在 wpf C# 中隐藏日期选择器图标？
【发布时间】：2018-12-18 13:07:37
【问题描述】：

我想隐藏默认的DatePicker图标：

我需要类似的东西：

 <DatePicker IconVisibality="False"/>

我试过了：

Template="{x:Null}"

但它隐藏了一切。

我也试过了：

Foreground="{x:Null}"

有人知道吗？

【问题讨论】：

  • 两个问题：您为什么以及尝试这样做？
  • 你有什么尝试吗？因为这样的问题很有可能已经被问到asked（遗憾的是，那里删除的答案对你有用）。 WPF 非常灵活，您几乎可以change style 处理任何事情。
  • @Rafalon 那是因为我正在通过其他事件打开对话框
  • @Sinatr 第一个链接没有接受的答案，第二个链接太笼统了，我正在寻找我的问题的具体答案
  • 您在网上搜索过吗？ How to change DatePicker icon / How to remove default Image of DatePicker 是谷歌快速搜索的前两个链接

标签： c# wpf xaml datepicker


【解决方案1】：

更轻松的方法是创建自定义控件。

public class CustomDatePicker:DatePicker
{
    public override void OnApplyTemplate()
    {
        base.OnApplyTemplate();

        if (Template.FindName("PART_Button", this) is Button button)
        {
            button.Visibility = System.Windows.Visibility.Hidden;
        }
    }
}

然后在 Xaml 中使用它

&lt;local:CustomDatePicker   /&gt;

【讨论】：

  • 太棒了！谢谢！我写了Visibility.Collaped 而不是Visibility.Hidden :-)
【解决方案2】：

您需要创建一个自定义模板。您可以在 Visual Studio 或 Blend 中的设计模式下右键单击 DatePicker 元素，然后选择编辑模板-> 编辑副本以将默认模板复制到 XAML 标记中，然后删除名为“PART_Button”的 Button 元素" 来自它：

<DatePicker>
    <DatePicker.Style>
        <Style TargetType="{x:Type DatePicker}">
            <Setter Property="Foreground" Value="#FF333333"/>
            <Setter Property="IsTodayHighlighted" Value="True"/>
            <Setter Property="SelectedDateFormat" Value="Short"/>
            <Setter Property="Background" Value="Transparent"/>
            <Setter Property="Padding" Value="2"/>
            <Setter Property="BorderBrush">
                <Setter.Value>
                    <LinearGradientBrush EndPoint=".5,0" StartPoint=".5,1">
                        <GradientStop Color="#FFA3AEB9" Offset="0"/>
                        <GradientStop Color="#FF8399A9" Offset="0.375"/>
                        <GradientStop Color="#FF718597" Offset="0.375"/>
                        <GradientStop Color="#FF617584" Offset="1"/>
                    </LinearGradientBrush>
                </Setter.Value>
            </Setter>
            <Setter Property="BorderThickness" Value="1"/>
            <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type DatePicker}">
                        <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}">
                            <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="CommonStates">
                                    <VisualState x:Name="Normal"/>
                                    <VisualState x:Name="Disabled">
                                        <Storyboard>
                                            <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="PART_DisabledVisual"/>
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                            </VisualStateManager.VisualStateGroups>
                            <Grid x:Name="PART_Root" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
                                <Grid.Resources>
                                    <SolidColorBrush x:Key="DisabledBrush" Color="#A5FFFFFF"/>
                                    <ControlTemplate x:Key="DropDownButtonTemplate" TargetType="{x:Type Button}">
                                        <Grid>
                                            <VisualStateManager.VisualStateGroups>
                                                <VisualStateGroup x:Name="CommonStates">
                                                    <VisualStateGroup.Transitions>
                                                        <VisualTransition GeneratedDuration="0"/>
                                                        <VisualTransition GeneratedDuration="0:0:0.1" To="MouseOver"/>
                                                        <VisualTransition GeneratedDuration="0:0:0.1" To="Pressed"/>
                                                    </VisualStateGroup.Transitions>
                                                    <VisualState x:Name="Normal"/>
                                                    <VisualState x:Name="MouseOver">
                                                        <Storyboard>
                                                            <ColorAnimation Duration="0" To="#FF448DCA" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" Storyboard.TargetName="Background"/>
                                                            <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[3].(GradientStop.Color)" Storyboard.TargetName="BackgroundGradient">
                                                                <SplineColorKeyFrame KeyTime="0" Value="#7FFFFFFF"/>
                                                            </ColorAnimationUsingKeyFrames>
                                                            <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[2].(GradientStop.Color)" Storyboard.TargetName="BackgroundGradient">
                                                                <SplineColorKeyFrame KeyTime="0" Value="#CCFFFFFF"/>
                                                            </ColorAnimationUsingKeyFrames>
                                                            <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[1].(GradientStop.Color)" Storyboard.TargetName="BackgroundGradient">
                                                                <SplineColorKeyFrame KeyTime="0" Value="#F2FFFFFF"/>
                                                            </ColorAnimationUsingKeyFrames>
                                                        </Storyboard>
                                                    </VisualState>
                                                    <VisualState x:Name="Pressed">
                                                        <Storyboard>
                                                            <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" Storyboard.TargetName="Background">
                                                                <SplineColorKeyFrame KeyTime="0" Value="#FF448DCA"/>
                                                            </ColorAnimationUsingKeyFrames>
                                                            <DoubleAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="Highlight">
                                                                <SplineDoubleKeyFrame KeyTime="0" Value="1"/>
                                                            </DoubleAnimationUsingKeyFrames>
                                                            <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[1].(GradientStop.Color)" Storyboard.TargetName="BackgroundGradient">
                                                                <SplineColorKeyFrame KeyTime="0" Value="#EAFFFFFF"/>
                                                            </ColorAnimationUsingKeyFrames>
                                                            <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[2].(GradientStop.Color)" Storyboard.TargetName="BackgroundGradient">
                                                                <SplineColorKeyFrame KeyTime="0" Value="#C6FFFFFF"/>
                                                            </ColorAnimationUsingKeyFrames>
                                                            <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[3].(GradientStop.Color)" Storyboard.TargetName="BackgroundGradient">
                                                                <SplineColorKeyFrame KeyTime="0" Value="#6BFFFFFF"/>
                                                            </ColorAnimationUsingKeyFrames>
                                                            <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[0].(GradientStop.Color)" Storyboard.TargetName="BackgroundGradient">
                                                                <SplineColorKeyFrame KeyTime="0" Value="#F4FFFFFF"/>
                                                            </ColorAnimationUsingKeyFrames>
                                                        </Storyboard>
                                                    </VisualState>
                                                    <VisualState x:Name="Disabled"/>
                                                </VisualStateGroup>
                                            </VisualStateManager.VisualStateGroups>
                                            <Grid Background="#11FFFFFF" FlowDirection="LeftToRight" HorizontalAlignment="Center" Height="18" Margin="0" VerticalAlignment="Center" Width="19">
                                                <Grid.ColumnDefinitions>
                                                    <ColumnDefinition Width="20*"/>
                                                    <ColumnDefinition Width="20*"/>
                                                    <ColumnDefinition Width="20*"/>
                                                    <ColumnDefinition Width="20*"/>
                                                </Grid.ColumnDefinitions>
                                                <Grid.RowDefinitions>
                                                    <RowDefinition Height="23*"/>
                                                    <RowDefinition Height="19*"/>
                                                    <RowDefinition Height="19*"/>
                                                    <RowDefinition Height="19*"/>
                                                </Grid.RowDefinitions>
                                                <Border x:Name="Highlight" BorderBrush="#FF45D6FA" BorderThickness="1" Grid.ColumnSpan="4" CornerRadius="0,0,1,1" Margin="-1" Opacity="0" Grid.Row="0" Grid.RowSpan="4"/>
                                                <Border x:Name="Background" BorderBrush="#FFFFFFFF" BorderThickness="1" Background="#FF1F3B53" Grid.ColumnSpan="4" CornerRadius=".5" Margin="0,-1,0,0" Opacity="1" Grid.Row="1" Grid.RowSpan="3"/>
                                                <Border x:Name="BackgroundGradient" BorderBrush="#BF000000" BorderThickness="1" Grid.ColumnSpan="4" CornerRadius=".5" Margin="0,-1,0,0" Opacity="1" Grid.Row="1" Grid.RowSpan="3">
                                                    <Border.Background>
                                                        <LinearGradientBrush EndPoint=".7,1" StartPoint=".7,0">
                                                            <GradientStop Color="#FFFFFFFF" Offset="0"/>
                                                            <GradientStop Color="#F9FFFFFF" Offset="0.375"/>
                                                            <GradientStop Color="#E5FFFFFF" Offset="0.625"/>
                                                            <GradientStop Color="#C6FFFFFF" Offset="1"/>
                                                        </LinearGradientBrush>
                                                    </Border.Background>
                                                </Border>
                                                <Rectangle Grid.ColumnSpan="4" Grid.RowSpan="1" StrokeThickness="1">
                                                    <Rectangle.Fill>
                                                        <LinearGradientBrush EndPoint="0.3,-1.1" StartPoint="0.46,1.6">
                                                            <GradientStop Color="#FF4084BD"/>
                                                            <GradientStop Color="#FFAFCFEA" Offset="1"/>
                                                        </LinearGradientBrush>
                                                    </Rectangle.Fill>
                                                    <Rectangle.Stroke>
                                                        <LinearGradientBrush EndPoint="0.48,-1" StartPoint="0.48,1.25">
                                                            <GradientStop Color="#FF494949"/>
                                                            <GradientStop Color="#FF9F9F9F" Offset="1"/>
                                                        </LinearGradientBrush>
                                                    </Rectangle.Stroke>
                                                </Rectangle>
                                                <Path Grid.ColumnSpan="4" Grid.Column="0" Data="M11.426758,8.4305077 L11.749023,8.4305077 L11.749023,16.331387 L10.674805,16.331387 L10.674805,10.299648 L9.0742188,11.298672 L9.0742188,10.294277 C9.4788408,10.090176 9.9094238,9.8090878 10.365967,9.4510155 C10.82251,9.0929432 11.176106,8.7527733 11.426758,8.4305077 z M14.65086,8.4305077 L18.566387,8.4305077 L18.566387,9.3435936 L15.671368,9.3435936 L15.671368,11.255703 C15.936341,11.058764 16.27293,10.960293 16.681133,10.960293 C17.411602,10.960293 17.969301,11.178717 18.354229,11.615566 C18.739157,12.052416 18.931622,12.673672 18.931622,13.479336 C18.931622,15.452317 18.052553,16.438808 16.294415,16.438808 C15.560365,16.438808 14.951641,16.234707 14.468243,15.826504 L14.881817,14.929531 C15.368796,15.326992 15.837872,15.525723 16.289043,15.525723 C17.298809,15.525723 17.803692,14.895514 17.803692,13.635098 C17.803692,12.460618 17.305971,11.873379 16.310528,11.873379 C15.83071,11.873379 15.399232,12.079271 15.016094,12.491055 L14.65086,12.238613 z" Fill="#FF2F2F2F" HorizontalAlignment="Center" Margin="4,3,4,3" Grid.Row="1" Grid.RowSpan="3" RenderTransformOrigin="0.5,0.5" Stretch="Fill" VerticalAlignment="Center"/>
                                                <Ellipse Grid.ColumnSpan="4" Fill="#FFFFFFFF" HorizontalAlignment="Center" Height="3" StrokeThickness="0" VerticalAlignment="Center" Width="3"/>
                                                <Border x:Name="DisabledVisual" BorderBrush="#B2FFFFFF" BorderThickness="1" Grid.ColumnSpan="4" CornerRadius="0,0,.5,.5" Opacity="0" Grid.Row="0" Grid.RowSpan="4"/>
                                            </Grid>
                                        </Grid>
                                    </ControlTemplate>
                                </Grid.Resources>
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="*"/>
                                    <ColumnDefinition Width="Auto"/>
                                </Grid.ColumnDefinitions>
                                <!--<Button x:Name="PART_Button" Grid.Column="1" Foreground="{TemplateBinding Foreground}" Focusable="False" HorizontalAlignment="Left" Margin="3,0,3,0" Grid.Row="0" Template="{StaticResource DropDownButtonTemplate}" VerticalAlignment="Top" Width="20"/>-->
                                <DatePickerTextBox x:Name="PART_TextBox" Grid.Column="0" Focusable="{TemplateBinding Focusable}" HorizontalContentAlignment="Stretch" Grid.Row="0" VerticalContentAlignment="Stretch"/>
                                <Grid x:Name="PART_DisabledVisual" Grid.ColumnSpan="2" Grid.Column="0" IsHitTestVisible="False" Opacity="0" Grid.Row="0">
                                    <Grid.ColumnDefinitions>
                                        <ColumnDefinition Width="*"/>
                                        <ColumnDefinition Width="Auto"/>
                                    </Grid.ColumnDefinitions>
                                    <Rectangle Grid.Column="0" Fill="#A5FFFFFF" RadiusY="1" Grid.Row="0" RadiusX="1"/>
                                    <Rectangle Grid.Column="1" Fill="#A5FFFFFF" Height="18" Margin="3,0,3,0" RadiusY="1" Grid.Row="0" RadiusX="1" Width="19"/>
                                    <Popup x:Name="PART_Popup" AllowsTransparency="True" Placement="Bottom" PlacementTarget="{Binding ElementName=PART_TextBox}" StaysOpen="False"/>
                                </Grid>
                            </Grid>
                        </Border>
                        <ControlTemplate.Triggers>
                            <DataTrigger Binding="{Binding Source={x:Static SystemParameters.HighContrast}}" Value="false">
                                <Setter Property="Foreground" TargetName="PART_TextBox" Value="{Binding Foreground, RelativeSource={RelativeSource TemplatedParent}}"/>
                            </DataTrigger>
                        </ControlTemplate.Triggers>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>
    </DatePicker.Style>
</DatePicker>

【讨论】：

    【解决方案3】：

    只需用另一种样式（像这样）覆盖您的模板，然后使用 StaticResource 将其引用到您的 DatePicker。

    <Style x:Key="WithoutButtonPickerStyle" TargetType="{x:Type DatePicker}">
    <Setter Property="Template">
          <Setter.Value>
              <ControlTemplate TargetType="{x:Type DatePicker}">
                     <Grid x:Name="PART_Root" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
                         <DatePickerTextBox x:Name="PART_TextBox">...</DatePickerTextBox>
                         <Button x:Name="PART_Button" Visibility="Hidden"/>
                     </Grid>
               </ControlTemplate>
           </Setter.Value>
     </Setter>
</Style>

    【讨论】：

      【解决方案4】： 
      <Window.Resources>
    <Style x:Key="DatePickerStyle" TargetType="{x:Type DatePicker}">
        <Setter Property="Foreground" Value="#FF333333"/>
        <Setter Property="IsTodayHighlighted" Value="True"/>
        <Setter Property="SelectedDateFormat" Value="Short"/>
        <Setter Property="Background" Value="Transparent"/>
        <Setter Property="Padding" Value="2"/>
        <Setter Property="BorderBrush">
            <Setter.Value>
                <LinearGradientBrush EndPoint=".5,0" StartPoint=".5,1">
                    <GradientStop Color="#FFA3AEB9" Offset="0"/>
                    <GradientStop Color="#FF8399A9" Offset="0.375"/>
                    <GradientStop Color="#FF718597" Offset="0.375"/>
                    <GradientStop Color="#FF617584" Offset="1"/>
                </LinearGradientBrush>
            </Setter.Value>
        </Setter>
        <Setter Property="BorderThickness" Value="1"/>
        <Setter Property="HorizontalContentAlignment" Value="Stretch"/>
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type DatePicker}">
                    <Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}">
                        <VisualStateManager.VisualStateGroups>
                            <VisualStateGroup x:Name="CommonStates">
                                <VisualState x:Name="Normal"/>
                                <VisualState x:Name="Disabled">
                                    <Storyboard>
                                        <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="PART_DisabledVisual"/>
                                    </Storyboard>
                                </VisualState>
                            </VisualStateGroup>
                        </VisualStateManager.VisualStateGroups>
                        <Grid x:Name="PART_Root" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
                            <Grid.Resources>
                                <SolidColorBrush x:Key="DisabledBrush" Color="#A5FFFFFF"/>
                                <ControlTemplate x:Key="DropDownButtonTemplate" TargetType="{x:Type Button}">
                                    <Grid>
                                        <VisualStateManager.VisualStateGroups>
                                            <VisualStateGroup x:Name="CommonStates">
                                                <VisualStateGroup.Transitions>
                                                    <VisualTransition GeneratedDuration="0"/>
                                                    <VisualTransition GeneratedDuration="0:0:0.1" To="MouseOver"/>
                                                    <VisualTransition GeneratedDuration="0:0:0.1" To="Pressed"/>
                                                </VisualStateGroup.Transitions>
                                                <VisualState x:Name="Normal"/>
                                                <VisualState x:Name="MouseOver">
                                                    <Storyboard>
                                                        <ColorAnimation Duration="0" To="#FF448DCA" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" Storyboard.TargetName="Background"/>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[3].(GradientStop.Color)" Storyboard.TargetName="BackgroundGradient">
                                                            <SplineColorKeyFrame KeyTime="0" Value="#7FFFFFFF"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[2].(GradientStop.Color)" Storyboard.TargetName="BackgroundGradient">
                                                            <SplineColorKeyFrame KeyTime="0" Value="#CCFFFFFF"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[1].(GradientStop.Color)" Storyboard.TargetName="BackgroundGradient">
                                                            <SplineColorKeyFrame KeyTime="0" Value="#F2FFFFFF"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                    </Storyboard>
                                                </VisualState>
                                                <VisualState x:Name="Pressed">
                                                    <Storyboard>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(SolidColorBrush.Color)" Storyboard.TargetName="Background">
                                                            <SplineColorKeyFrame KeyTime="0" Value="#FF448DCA"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                        <DoubleAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(UIElement.Opacity)" Storyboard.TargetName="Highlight">
                                                            <SplineDoubleKeyFrame KeyTime="0" Value="1"/>
                                                        </DoubleAnimationUsingKeyFrames>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[1].(GradientStop.Color)" Storyboard.TargetName="BackgroundGradient">
                                                            <SplineColorKeyFrame KeyTime="0" Value="#EAFFFFFF"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[2].(GradientStop.Color)" Storyboard.TargetName="BackgroundGradient">
                                                            <SplineColorKeyFrame KeyTime="0" Value="#C6FFFFFF"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[3].(GradientStop.Color)" Storyboard.TargetName="BackgroundGradient">
                                                            <SplineColorKeyFrame KeyTime="0" Value="#6BFFFFFF"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                        <ColorAnimationUsingKeyFrames BeginTime="0" Duration="00:00:00.001" Storyboard.TargetProperty="(Border.Background).(GradientBrush.GradientStops)[0].(GradientStop.Color)" Storyboard.TargetName="BackgroundGradient">
                                                            <SplineColorKeyFrame KeyTime="0" Value="#F4FFFFFF"/>
                                                        </ColorAnimationUsingKeyFrames>
                                                    </Storyboard>
                                                </VisualState>
                                                <VisualState x:Name="Disabled"/>
                                            </VisualStateGroup>
                                        </VisualStateManager.VisualStateGroups>
                                        <Grid Background="#11FFFFFF" FlowDirection="LeftToRight" HorizontalAlignment="Center" Height="18" Margin="0" VerticalAlignment="Center" Width="19">
                                            <Grid.ColumnDefinitions>
                                                <ColumnDefinition Width="20*"/>
                                                <ColumnDefinition Width="20*"/>
                                                <ColumnDefinition Width="20*"/>
                                                <ColumnDefinition Width="20*"/>
                                            </Grid.ColumnDefinitions>
                                            <Grid.RowDefinitions>
                                                <RowDefinition Height="23*"/>
                                                <RowDefinition Height="19*"/>
                                                <RowDefinition Height="19*"/>
                                                <RowDefinition Height="19*"/>
                                            </Grid.RowDefinitions>
                                            <Border x:Name="Highlight" BorderBrush="#FF45D6FA" BorderThickness="1" Grid.ColumnSpan="4" CornerRadius="0,0,1,1" Margin="-1" Opacity="0" Grid.Row="0" Grid.RowSpan="4"/>
                                            <Border x:Name="Background" BorderBrush="#FFFFFFFF" BorderThickness="1" Background="#FF1F3B53" Grid.ColumnSpan="4" CornerRadius=".5" Margin="0,-1,0,0" Opacity="1" Grid.Row="1" Grid.RowSpan="3"/>
                                            <Border x:Name="BackgroundGradient" BorderBrush="#BF000000" BorderThickness="1" Grid.ColumnSpan="4" CornerRadius=".5" Margin="0,-1,0,0" Opacity="1" Grid.Row="1" Grid.RowSpan="3">
                                                <Border.Background>
                                                    <LinearGradientBrush EndPoint=".7,1" StartPoint=".7,0">
                                                        <GradientStop Color="#FFFFFFFF" Offset="0"/>
                                                        <GradientStop Color="#F9FFFFFF" Offset="0.375"/>
                                                        <GradientStop Color="#E5FFFFFF" Offset="0.625"/>
                                                        <GradientStop Color="#C6FFFFFF" Offset="1"/>
                                                    </LinearGradientBrush>
                                                </Border.Background>
                                            </Border>
                                            <Rectangle Grid.ColumnSpan="4" Grid.RowSpan="1" StrokeThickness="1">
                                                <Rectangle.Fill>
                                                    <LinearGradientBrush EndPoint="0.3,-1.1" StartPoint="0.46,1.6">
                                                        <GradientStop Color="#FF4084BD"/>
                                                        <GradientStop Color="#FFAFCFEA" Offset="1"/>
                                                    </LinearGradientBrush>
                                                </Rectangle.Fill>
                                                <Rectangle.Stroke>
                                                    <LinearGradientBrush EndPoint="0.48,-1" StartPoint="0.48,1.25">
                                                        <GradientStop Color="#FF494949"/>
                                                        <GradientStop Color="#FF9F9F9F" Offset="1"/>
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                                </ControlTemplate>
                            </Grid.Resources>
                            <Grid.ColumnDefinitions>
                                <ColumnDefinition Width="*"/>
                                <ColumnDefinition Width="Auto"/>
                            </Grid.ColumnDefinitions>
                            <!--This is Button Templete-->
                            <Button x:Name="PART_Button" Grid.Column="1" Foreground="{TemplateBinding Foreground}" Focusable="False" HorizontalAlignment="Left" Margin="3,0,3,0" Grid.Row="0"  VerticalAlignment="Top" Width="20"/>
                            <!--...-->
                            <DatePickerTextBox x:Name="PART_TextBox" Grid.Column="0" Foreground="{TemplateBinding Foreground}" Focusable="{TemplateBinding Focusable}" HorizontalContentAlignment="Stretch" Grid.Row="0" VerticalContentAlignment="Stretch"/>
                            <Grid x:Name="PART_DisabledVisual" Grid.ColumnSpan="2" Grid.Column="0" IsHitTestVisible="False" Opacity="0" Grid.Row="0">
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition Width="*"/>
                                    <ColumnDefinition Width="Auto"/>
                                </Grid.ColumnDefinitions>
                                <Rectangle Grid.Column="0" Fill="#A5FFFFFF" RadiusY="1" Grid.Row="0" RadiusX="1"/>
                                <Rectangle Grid.Column="1" Fill="#A5FFFFFF" Height="18" Margin="3,0,3,0" RadiusY="1" Grid.Row="0" RadiusX="1" Width="19"/>
                                <Popup x:Name="PART_Popup" AllowsTransparency="True" Placement="Bottom" PlacementTarget="{Binding ElementName=PART_TextBox}" StaysOpen="False"/>
                            </Grid>
                        </Grid>
                    </Border>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</Window.Resources>
<Grid>
    <DatePicker Width="150" Height="26" Style="{StaticResource DatePickerStyle}"/>
</Grid>

      【讨论】：

      • 考虑添加几句话来解释你的答案的关键点和细节：它是如何工作的以及为什么。在这么长的代码 sn-p 中几乎看不到 xaml 注释。
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