WPF DatePicker文本框白色边框不可编辑

时间：2017-05-17 09:30:32

标签： wpf xaml datepicker textbox controltemplate

我正在编辑DatePicker的控件模板，但TextBox样式存在问题。文本周围有一个白色边框，而不是实际的TextBox边框。 根据我目前的风格，TextBox位于Border内，TextBox Background设置为透明，BorderThickness设置为0。

<Border Grid.Column="0" 
        Height="25"
        Background="DarkKhaki"
        CornerRadius="5"
        Grid.ColumnSpan="1">

<DatePickerTextBox x:Name="PART_TextBox" 
                   Background="Transparent"
                   Grid.Column="0" 
                   BorderThickness="0"
                   Focusable="{TemplateBinding Focusable}" 
                   HorizontalContentAlignment="Stretch" 
                   Grid.Row="0" 
                   Grid.ColumnSpan="1" 
                   Margin="1.143,0,1.056,0"/>
                            </Border>

这就是DatePicker使用此样式的样子：

raw

如果我向Border添加TextBox，它会显示在白色Border周围：

bordered

如果有人知道如何删除这个额外的Border，我们将不胜感激！

2 个答案:

答案 0 :(得分：3)

您可以为Style：

创建新的DatePickerTextBox

XAML Style

这只是原始Style的副本，并将两个Visibility的{​​{1}}更改为Border。

Hidden

XAML 

<Style x:Key="DatePickerTextBoxStyle1" TargetType="{x:Type DatePickerTextBox}">


<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.WindowTextBrushKey}}"/>
            <Setter Property="Background" Value="{DynamicResource {x:Static SystemColors.WindowBrushKey}}"/>
            <Setter Property="ScrollViewer.PanningMode" Value="VerticalFirst"/>
            <Setter Property="Stylus.IsFlicksEnabled" Value="False"/>
            <Setter Property="Template">
                <Setter.Value>
                    <ControlTemplate TargetType="{x:Type DatePickerTextBox}">
                        <Grid>
                            <Grid.Resources>
                                <SolidColorBrush x:Key="WatermarkBrush" Color="#FFAAAAAA"/>
                            </Grid.Resources>
                            <VisualStateManager.VisualStateGroups>
                                <VisualStateGroup x:Name="CommonStates">
                                    <VisualStateGroup.Transitions>
                                        <VisualTransition GeneratedDuration="0"/>
                                        <VisualTransition GeneratedDuration="0:0:0.1" To="MouseOver"/>
                                    </VisualStateGroup.Transitions>
                                    <VisualState x:Name="Normal"/>
                                    <VisualState x:Name="MouseOver">
                                        <Storyboard>
                                            <ColorAnimation Duration="0" To="#FF99C1E2" Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" Storyboard.TargetName="ContentElement"/>
                                            <ColorAnimation Duration="0" To="#FF99C1E2" Storyboard.TargetProperty="(Border.BorderBrush).(SolidColorBrush.Color)" Storyboard.TargetName="watermark_decorator"/>
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                                <VisualStateGroup x:Name="WatermarkStates">
                                    <VisualStateGroup.Transitions>
                                        <VisualTransition GeneratedDuration="0"/>
                                    </VisualStateGroup.Transitions>
                                    <VisualState x:Name="Unwatermarked"/>
                                    <VisualState x:Name="Watermarked">
                                        <Storyboard>
                                            <DoubleAnimation Duration="0" To="0" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="ContentElement"/>
                                            <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="PART_Watermark"/>
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                                <VisualStateGroup x:Name="FocusStates">
                                    <VisualStateGroup.Transitions>
                                        <VisualTransition GeneratedDuration="0"/>
                                    </VisualStateGroup.Transitions>
                                    <VisualState x:Name="Unfocused"/>
                                    <VisualState x:Name="Focused">
                                        <Storyboard>
                                            <DoubleAnimation Duration="0" To="1" Storyboard.TargetProperty="Opacity" Storyboard.TargetName="FocusVisual"/>
                                        </Storyboard>
                                    </VisualState>
                                </VisualStateGroup>
                            </VisualStateManager.VisualStateGroups>
                            <Border x:Name="Border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" CornerRadius="1" Opacity="1" Padding="{TemplateBinding Padding}">
                                <Grid x:Name="WatermarkContent" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
                                    <Border x:Name="ContentElement" BorderBrush="#FFFFFFFF" BorderThickness="1" Visibility="Hidden"/>
                                    <Border x:Name="watermark_decorator" BorderBrush="#FFFFFFFF" BorderThickness="1" Visibility="Hidden">
                                        <ContentControl x:Name="PART_Watermark" Focusable="False" IsHitTestVisible="False" Opacity="0" Padding="2"/>
                                    </Border>
                                    <ScrollViewer x:Name="PART_ContentHost" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="0" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/>
                                    <Border x:Name="FocusVisual" BorderBrush="#FF45D6FA" CornerRadius="1" IsHitTestVisible="False" Opacity="0"/>
                                </Grid>
                            </Border>
                        </Grid>
                    </ControlTemplate>
                </Setter.Value>
            </Setter>
        </Style>

预览

Preview

如果您创建新的 <Border Background="DarkKhaki" VerticalAlignment="Center" HorizontalAlignment="Center" CornerRadius="5"> <DatePickerTextBox x:Name="datePickerTextBox" Height="25" Width="120" TextWrapping="Wrap" Text="DatePickerTextBox" Background="Transparent" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" Style="{DynamicResource DatePickerTextBoxStyle1}"/> </Border> ，还可以将{Khaki“Style与Border包括在一起。

感谢@OfficeAddinDev

此答案通过设置“watermark_decorator”边框来删除边框。 CornerRadius。只需将其更改为Visibility = Hidden并更改Visible，而不是显示“选择日期”，而不会出现威胁性的白色边框。

答案 1 :(得分：0)

  

文本周围有一个白色边框，而不是实际的TextBox边框

是的，确实如此。 Border是DatePickerTextBox默认控件模板的一部分。

如果您不想要它，您将按照@Dominic Jonas的建议覆盖模板。您应该能够摆脱两个内部Border元素，这两个元素都具有BorderThickness 1的硬编码：

<Border Grid.Column="0" 
        Height="25"
        Background="DarkKhaki"
        CornerRadius="5"
        Grid.ColumnSpan="1">
    <DatePickerTextBox x:Name="PART_TextBox" 
                   Background="Transparent"
                   Grid.Column="0" 
                   BorderThickness="0"
                   HorizontalContentAlignment="Stretch" 
                   Grid.Row="0" 
                   Grid.ColumnSpan="1" 
                   Margin="1.143,0,1.056,0">
        <DatePickerTextBox.Template>
            <ControlTemplate TargetType="DatePickerTextBox">
                <Grid x:Name="WatermarkContent" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
                    <ContentControl x:Name="PART_Watermark" Focusable="False" IsHitTestVisible="False" Opacity="0" Padding="2"/>
                    <ScrollViewer x:Name="PART_ContentHost" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="0" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/>
                </Grid>
            </ControlTemplate>
        </DatePickerTextBox.Template>
    </DatePickerTextBox>
</Border>
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