1.DatePicker 控件介绍
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日期控件：下拉部分—可视化的日历控件
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自定义格式：SelectedDate --代码修改—行不通
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自定义Style，template来实现自定义
2.具体案例
<Grid>
<!--IsTodayHighlighted 默认 True IsDropDownOpen 默认false FirstDayOfWeek 默认值 Sunday
DisplayDate 要显示的时间 并不显示在日期中 SelectedDateFormat 默认 Short
-->
<DatePicker Name="dpDate" HorizontalAlignment="Left" Margin="85,80,0,0" VerticalAlignment="Top" Height="27" Width="183" DisplayDateStart="2020-04-10" DisplayDateEnd="2020-5-31" FirstDayOfWeek="Monday" IsDropDownOpen="False" IsTodayHighlighted="False" SelectedDate="2020-5-5" SelectedDateFormat="Short" SelectedDateChanged="DpDate_SelectedDateChanged" >
<DatePicker.Resources>
<Style TargetType="DatePickerTextBox" >
<Setter Property="BorderThickness" Value="0"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<TextBox x:Name="PART_TextBox" Text="{Binding Path=SelectedDate, StringFormat={}{0:yyyy-MM-dd}, RelativeSource={RelativeSource AncestorType={x:Type DatePicker}}}" />
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</DatePicker.Resources>
</DatePicker>
</Grid>
private void DpDate_SelectedDateChanged(object sender, SelectionChangedEventArgs e)
{
MessageBox.Show(dpDate.Text);
DateTime dt = Convert.ToDateTime(dpDate.Text);
string date = dt.ToString("yyyy-MM-dd");//将选择的日期格式化
MessageBox.Show(dpDate.SelectedDate.Value.ToString());
}
