WPF 日期选取器日历按钮不起作用(使用修改后的模板)
本文关键字：修改 选取 日期 日历 不起作用 按钮 WPF | 更新日期: 2023-09-27 18:35:03
如果这已经存在，我提前道歉(我进行了高级搜索，找不到这个特定问题。
我正在使用自定义 WPF 日期选择器日历模板(实际上只是更改颜色(，但现在我的按钮不起作用。它会弹出日历，但从那时起没有任何效果，我错过了什么吗？下面是代码：
<ResourceDictionary
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:Controls="clr-namespace:Microsoft.Windows.Controls;assembly=WPFToolkit"
xmlns:primitives="clr-namespace:Microsoft.Windows.Controls.Primitives;assembly=WPFToolkit" >
<Style x:Key="CalendarStyle1" TargetType="{x:Type Calendar}">
<Setter Property="Foreground" Value="#FF333333"/>
<Setter Property="Background">
<Setter.Value>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFE4EAF0" Offset="0"/>
<GradientStop Color="#FFECF0F4" Offset="0.16"/>
<GradientStop Color="#FFFCFCFD" Offset="0.16"/>
<GradientStop Color="White" Offset="1"/>
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="BorderBrush">
<Setter.Value>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<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="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Calendar}">
<StackPanel x:Name="PART_Root" HorizontalAlignment="Center">
<primitives:CalendarItem x:Name="PART_CalendarItem" Style="{DynamicResource CalenderStyleNew}" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}"/>
</StackPanel>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<Style x:Key="CalenderStyleNew"
TargetType="primitives:CalendarItem">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="primitives:CalendarItem">
<ControlTemplate.Resources>
<!-- Start: Data template for header button -->
<DataTemplate x:Key="DayTitleTemplate">
<TextBlock
FontWeight="Bold"
FontFamily="Verdana"
FontSize="9.5"
Foreground="Black"
HorizontalAlignment="Center"
Text="{Binding}"
Margin="0,6,0,6"
VerticalAlignment="Center"/>
</DataTemplate>
<!-- End: Data template for header button -->
<DataTemplate x:Key="MonthTitleTemplate">
<TextBlock
FontWeight="Medium"
FontFamily="Verdana"
FontSize="9.5"
Foreground="Red"
HorizontalAlignment="Center"
Text="{Binding}"
Margin="0,10,0,6"
VerticalAlignment="Center"/>
</DataTemplate>
</ControlTemplate.Resources>
<Grid Name="PART_Root" >
<Grid.Resources>
<SolidColorBrush x:Key="DisabledColor" Color="#A5FFFFFF" />
</Grid.Resources>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="Disabled">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="PART_DisabledVisual" Storyboard.TargetProperty="Opacity" To="1" Duration="0" />
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}"
CornerRadius="1">
<!-- This Brush is new -->
<Border.Background>
<LinearGradientBrush StartPoint="0 0" EndPoint="0 1">
<GradientStop Offset="0" Color="#FFE4EAF0" />
<GradientStop Offset="0.5" Color="#FFECF0F4" />
<GradientStop Offset="1" Color="#FFECF0F4" />
</LinearGradientBrush>
</Border.Background>
<Border CornerRadius="1" BorderBrush="#FFFFFFFF" BorderThickness="2">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="*"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
<Grid.Resources>
<!-- Start: Previous button template -->
<ControlTemplate x:Key="PreviousButtonTemplate" TargetType="{ x:Type Button}">
<Grid Cursor="Hand">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="MouseOver">
<Storyboard>
<ColorAnimation Storyboard.TargetName="TextColor" Storyboard.TargetProperty="Color" To="#FF73A9D8" Duration="0" />
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="TextColor" Storyboard.TargetProperty="Opacity" To=".5" Duration="0" />
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Rectangle Fill="#11E5EBF1" Stretch="Fill" Opacity="1"/>
<Grid>
<Path Margin="14,-6,0,0" Height="10" Width="6" VerticalAlignment="Center" HorizontalAlignment="Left" Stretch="Fill" Data="M288.75,232.25 L288.75,240.625 L283,236.625 z">
<Path.Fill>
<SolidColorBrush x:Name="TextColor" Color="#FF333333" />
</Path.Fill>
</Path>
</Grid>
</Grid>
</ControlTemplate>
<ControlTemplate x:Key="NextButtonTemplate" TargetType="{ x:Type Button}">
<Grid Cursor="Hand">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="MouseOver">
<Storyboard>
<ColorAnimation Storyboard.TargetName="TextColor" Storyboard.TargetProperty="Color" To="#FF73A9D8" Duration="0" />
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="TextColor" Storyboard.TargetProperty="Opacity" To=".5" Duration="0" />
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Rectangle Fill="#11E5EBF1" Stretch="Fill" Opacity="1"/>
<Grid>
<Path Margin="0,-6,14,0" Height="10" Width="6" VerticalAlignment="Center" HorizontalAlignment="Right" Stretch="Fill" Data="M282.875,231.875 L282.875,240.375 L288.625,236 z">
<Path.Fill>
<SolidColorBrush x:Name="TextColor" Color="#FF333333" />
</Path.Fill>
</Path>
</Grid>
</Grid>
</ControlTemplate>
<!-- End: Next button template -->
<!-- Start: Header button template -->
<ControlTemplate x:Key="HeaderButtonTemplate" TargetType="{ x:Type Button}">
<Grid Cursor="Hand">
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="CommonStates">
<VisualState x:Name="Normal" />
<VisualState x:Name="MouseOver">
<Storyboard>
<ColorAnimation Storyboard.TargetName="TextColor" Storyboard.TargetProperty="Color" To="Blue" Duration="0" />
</Storyboard>
</VisualState>
<VisualState x:Name="Disabled">
<Storyboard>
<DoubleAnimation Storyboard.TargetName="buttonContent" Storyboard.TargetProperty="Opacity" To=".5" Duration="0" />
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<!-- This Border is new -->
<Border Padding="12 0"
CornerRadius="6">
<Border.Background>
<LinearGradientBrush StartPoint="0 0" EndPoint="0 1">
<GradientStop Offset="0" Color="#FF73A9D8" />
<GradientStop Offset="1" Color="#FF73A9E8" />
</LinearGradientBrush>
</Border.Background>
<ContentPresenter
x:Name="buttonContent"
Content="{TemplateBinding Content}"
ContentTemplate="{TemplateBinding ContentTemplate}"
Margin="1,4,1,9"
HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"
VerticalAlignment="{TemplateBinding VerticalContentAlignment}">
<TextElement.Foreground>
<SolidColorBrush x:Name="TextColor" Color="#FF333333"/>
</TextElement.Foreground>
</ContentPresenter>
</Border>
</Grid>
</ControlTemplate>
<!-- End: Header button template -->
</Grid.Resources>
<!-- Start: Previous button content -->
<Button x:Name="PART_PreviousButton"
Grid.Row="0" Grid.Column="0"
Template="{StaticResource PreviousButtonTemplate}"
Height="20" Width="28"
HorizontalAlignment="Left"
Focusable="False"
/>
<!-- End: Previous button content -->
<!-- Start: Header button content -->
<Button x:Name="PART_HeaderButton"
Grid.Row="0" Grid.Column="1"
Template="{StaticResource HeaderButtonTemplate}"
HorizontalAlignment="Center" VerticalAlignment="Center"
Height="28" Width="110"
FontWeight="Bold" FontSize="10.5"
Focusable="False"
/>
<!-- End: Header button content -->
<!-- Start: Next button content -->
<Button x:Name="PART_NextButton"
Grid.Row="0" Grid.Column="2"
Height="20" Width="28"
HorizontalAlignment="Right"
Template="{StaticResource NextButtonTemplate}"
Focusable="False"
/>
<!-- End: Next button content -->
<!-- Start: Month Content Grid -->
<Grid x:Name="PART_MonthView" Grid.Row="1" Grid.ColumnSpan="3" Visibility="Visible" Margin="6,-1,6,6">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
</Grid>
<!-- End: Month Content Grid -->
<!-- End: Year Content Grid -->
<Grid x:Name="PART_YearView" Grid.Row="1" Grid.ColumnSpan="3" Visibility="Hidden" Margin="6,-3,7,6">
<Grid.RowDefinitions>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
<RowDefinition Height="Auto"/>
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition Width="Auto"/>
</Grid.ColumnDefinitions>
</Grid>
<!-- End: Year Content Grid -->
</Grid>
</Border>
</Border>
<Rectangle x:Name="PART_DisabledVisual" Opacity="0" Visibility="Collapsed" Stretch="Fill" StrokeThickness="1" RadiusX="2" RadiusY="2" Stroke="{StaticResource DisabledColor}" Fill="{StaticResource DisabledColor}"/>
</Grid>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="False">
<Setter TargetName="PART_DisabledVisual" Property="Visibility" Value="Visible" />
</Trigger>
<DataTrigger Value="Year">
<DataTrigger.Binding>
<Binding Path="DisplayMode">
<Binding.RelativeSource>
<RelativeSource Mode="FindAncestor" AncestorType="{x:Type Controls:Calendar}" />
</Binding.RelativeSource>
</Binding>
</DataTrigger.Binding>
<Setter TargetName="PART_MonthView" Property="Visibility" Value="Hidden" />
<Setter TargetName="PART_YearView" Property="Visibility" Value="Visible" />
</DataTrigger>
<DataTrigger Value="Decade">
<DataTrigger.Binding>
<Binding Path="DisplayMode">
<Binding.RelativeSource>
<RelativeSource Mode="FindAncestor" AncestorType="{x:Type Controls:Calendar}" />
</Binding.RelativeSource>
</Binding>
</DataTrigger.Binding>
<Setter TargetName="PART_MonthView" Property="Visibility" Value="Hidden" />
<Setter TargetName="PART_YearView" Property="Visibility" Value="Visible" />
</DataTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
注意：我已经在应用程序级别设置了此资源字典，并且我将日历样式属性全局绑定到所有日期选择器。
这是在应用级资源字典中：
<Style TargetType="{x:Type DatePicker}">
<Setter
Property="CalendarStyle"
Value="{StaticResource CalendarStyle1}" />
</Style>
这是引用资源字典的地方(万一我做错了，我是 xaml 的新手
<Application.Resources>
<ResourceDictionary>
<ResourceDictionary.MergedDictionaries>
<ResourceDictionary
Source="ResourceDictionary/CustomCalendar.xaml" />
<ResourceDictionary
Source="ResourceDictionary/GlobalStyles.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Application.Resources>
你的问题在于你的风格 TargetTypes。如果您注意到日历的样式定义为：
<Style x:Key="CalendarStyle1" TargetType="{x:Type Calendar}">
日历项的样式定义为：
<Style x:Key="CalenderStyleNew" TargetType="primitives:CalendarItem">
问题是日历类型来自标准的System.Windows.Controls包，但CalendarItem来自命名空间Microsoft.Windows.Controls(即您定义为primitives的wpftoolkit命名空间(。因此，要解决此问题，您必须在样式中使用ALL System.Windows.Controls或使用ALL Microsoft.Windows.Controls命名空间。
我修复了您的问题以使用所有Microsoft.Windows.Controls：
<Style x:Key="CalendarStyle1" TargetType="{x:Type Controls:Calendar}">
全局样式必须更改为：
<Style TargetType="{x:Type Controls:DatePicker}">
<Setter
Property="CalendarStyle"
Value="{StaticResource CalendarStyle1}" />
</Style>
您必须使用正确的日期选择器：
<Controls:DatePicker />
不
<DatePicker />
如果不从 WpfToolkit 命名空间引用它，它将没有自定义样式。
干杯埃里克