一.前言
申明:WPF自定义控件与样式是一个系列文章,前后是有些关联的,但大多是按照由简到繁的顺序逐步发布的等,若有不明白的地方可以参考本系列前面的文章,文末附有部分文章链接。
本文主要内容:
- 日历控件Calendar自定义样式;
- 日期控件DatePicker自定义样式,及Label标签、水印、清除日期功能扩展;
二.Calendar自定义样式
先看看效果:
从上面图可以看出,日历的显示其实有三种状态,如下面的分解图:
- "日"部分的显示;
- "月"部分的显示;
- "年"部分的显示;
因此一个完整的日历,就包含多个部分,首先是"日"按钮的样式:
日历日期面板样式:
年月按钮样式:
最后综合以上的样式,定义我们需要的Calendar样式就差一步之遥了。
<!--默认日历样式--> <Style x:Key="DefaultCalendar" TargetType="{x:Type Calendar}"> <Setter Property="SnapsToDevicePixels" Value="True" /> <Setter Property="Foreground" Value="{StaticResource TextForeground}" /> <Setter Property="CalendarDayButtonStyle" Value="{StaticResource CalendarDayButtonStyle}" /> <Setter Property="CalendarItemStyle" Value="{StaticResource CalendarItemStyle}" /> <Setter Property="CalendarButtonStyle" Value="{StaticResource CalendarButtonStyle}" /> <Setter Property="Background" Value="{StaticResource PopupBackground}" /> <Setter Property="BorderBrush" Value="{StaticResource ControlBorderBrush}" /> <Setter Property="BorderThickness" Value="1" /> <Setter Property="FontSize" Value="13" /> <Setter Property="FontFamily" Value="{StaticResource FontFamily}" /> <Setter Property="IsTodayHighlighted" Value="True" /> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="{x:Type Calendar}"> <StackPanel x:Name="PART_Root" HorizontalAlignment="Center" Background="Transparent"> <CalendarItem x:Name="PART_CalendarItem" BorderBrush="{TemplateBinding BorderBrush}" FontSize="{TemplateBinding FontSize}" FontFamily="{TemplateBinding FontFamily}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" Style="{TemplateBinding CalendarItemStyle}" /> </StackPanel> </ControlTemplate> </Setter.Value> </Setter> </Style>
三.DatePicker自定义样式,及Label标签、水印、清除日期功能扩展
有了上面的日历样式,下面做DatePicker的样式就好办了,其实就是TextBox+Button+Calendar。此处的实现同上一篇(WPF自定义控件与样式(3)-TextBox & RichTextBox & PasswordBox样式)思路基本一致,因此本文就不做更多的解释,可以参考本系列前面的文章(末尾附录有链接)先看看效果图:
3.1 DatePicker自定义样式
基本样式定义:
水印效果:
使用示例:
<DatePicker Margin="3" core:ControlAttachProperty.Watermark="妈的快输入日期"/> <DatePicker Margin="3" SelectedDate="{x:Static system:DateTime.Today}"/> <DatePicker Margin="3" IsEnabled="False" SelectedDate="{x:Static system:DateTime.Today}"/>
3.2 Label标签
通过扩展基础样式中的标签附加属性实现,定义样式代码:
<!--DatePicker包含附加属性Label的样式 LabelDatePicker --> <Style TargetType="{x:Type DatePicker}" x:Key="LabelDatePicker" BasedOn="{StaticResource DefaultDatePicker}"> <Setter Property="Width" Value="260"></Setter> <Setter Property="local:ControlAttachProperty.LabelTemplate" > <Setter.Value> <ControlTemplate TargetType="ContentControl"> <Border Width="60" Background="{StaticResource TextLabelBackground}"> <TextBlock VerticalAlignment="Center" HorizontalAlignment="Right" Margin="2" Text="{TemplateBinding Content}"></TextBlock> </Border> </ControlTemplate> </Setter.Value> </Setter> </Style>
效果图:
使用示例:
<DatePicker Margin="3" Style="{StaticResource LabelClearButtonDatePicker}" core:ControlAttachProperty.Watermark="选择出生日期" core:ControlAttachProperty.Label="出生日期"/> <DatePicker Margin="3" Style="{StaticResource LabelDatePicker}" core:ControlAttachProperty.Label="死亡日期" SelectedDate="{x:Static system:DateTime.Today}"/> <DatePicker Margin="3" Style="{StaticResource LabelDatePicker}" core:ControlAttachProperty.Label="非法日期" IsEnabled="False" SelectedDate="{x:Static system:DateTime.Today}"/>
3.3 清除日期值的功能扩展
此功能在前面的文章有介绍过(参考本文末尾链接),效果在上面的图片中可以看到。样式代码:
<!--DatePicker包含清除Text按钮的样式 ClearButtonDatePicker --> <Style TargetType="{x:Type DatePicker}" x:Key="ClearButtonDatePicker" BasedOn="{StaticResource DefaultDatePicker}"> <Setter Property="local:ControlAttachProperty.AttachContent"> <Setter.Value> <ControlTemplate> <local:FButton FIcon="" Style="{StaticResource FButton_Transparency}" IsTabStop="False" FIconMargin="0" local:ControlAttachProperty.IsClearTextButtonBehaviorEnabled="True" Command="local:ControlAttachProperty.ClearTextCommand" CommandParameter="{Binding RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type DatePicker}}}" Margin="1,3,0,4" FIconSize="14" Foreground="{StaticResource TextForeground}" Cursor="Arrow"/> </ControlTemplate> </Setter.Value> </Setter> </Style> <!--DatePicker包含附加属性Label,以及ClearText按钮的样式 LabelClearButtonDatePicker --> <Style TargetType="{x:Type DatePicker}" x:Key="LabelClearButtonDatePicker" BasedOn="{StaticResource DefaultDatePicker}"> <Setter Property="Width" Value="280"></Setter> <Setter Property="local:ControlAttachProperty.LabelTemplate" > <Setter.Value> <ControlTemplate TargetType="ContentControl"> <Border Width="60" Background="{StaticResource TextLabelBackground}"> <TextBlock VerticalAlignment="Center" HorizontalAlignment="Right" Margin="2" Text="{TemplateBinding Content}"></TextBlock> </Border> </ControlTemplate> </Setter.Value> </Setter> <Setter Property="local:ControlAttachProperty.AttachContent"> <Setter.Value> <ControlTemplate> <local:FButton FIcon="" Style="{StaticResource FButton_Transparency}" IsTabStop="False" FIconMargin="0" local:ControlAttachProperty.IsClearTextButtonBehaviorEnabled="True" Command="local:ControlAttachProperty.ClearTextCommand" CommandParameter="{Binding RelativeSource={RelativeSource FindAncestor,AncestorType={x:Type DatePicker}}}" Margin="0,3,0,4" FIconSize="14" Foreground="{StaticResource TextForeground}" Cursor="Arrow"/> </ControlTemplate> </Setter.Value> </Setter> </Style>
使用示例:
<DatePicker Margin="3" Style="{StaticResource ClearButtonDatePicker}"/> <DatePicker Margin="3" Style="{StaticResource LabelClearButtonDatePicker}" core:ControlAttachProperty.Watermark="选择出生日期" core:ControlAttachProperty.Label="出生日期"/>
附录:参考引用
WPF自定义控件与样式(1)-矢量字体图标(iconfont)
WPF自定义控件与样式(3)-TextBox & RichTextBox & PasswordBox样式、水印、Label标签、功能扩展
WPF自定义控件与样式(4)-CheckBox/RadioButton自定义样式
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