如何将datepicker的日历可见性设置为隐藏wpf

Question

 <DatePicker x:Name="MyDatePicker" Margin="0,0,305,28" 
  CalendarStyle="{StaticResource CalendarName}">
 </DatePicker> 

<Window x:Class="calendarHideTest.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <!--Here i kept the style of DatePicker written at link https://docs.microsoft.com/en-us/dotnet/framework/wpf/controls/calendar-styles-and-templates-->                
    </Window.Resources>
    <StackPanel>
        <DatePicker x:Name="MyDatePicker" 
                    Margin="0,0,305,28" 
                    CalendarStyle="{StaticResource CalendarName}">
        </DatePicker>
    </StackPanel>
</Window>

Answer 1

如果我没有理解你的话，你可以用这个方法。

<DatePicker x:Name="datePicker" Width="100" Height="50" MouseEnter="DatePicker_OnMouseEnter" MouseLeave="DatePicker_OnMouseLeave" Loaded="DatePicker_OnLoaded"/>

和后面的代码。

...
    private void DatePicker_OnMouseEnter(object sender, MouseEventArgs e)
    {
        ChangeCalendarButtonVisibility(Visibility.Visible);
    }

    private void DatePicker_OnMouseLeave(object sender, MouseEventArgs e)
    {
        ChangeCalendarButtonVisibility(Visibility.Collapsed);
    }

    private void DatePicker_OnLoaded(object sender, RoutedEventArgs e)
    {
        //We use loaded event to hide button in initial state
        ChangeCalendarButtonVisibility(Visibility.Collapsed);
    }

    private Button GetCalendarButton()
    {
        var template = datePicker.Template;
        var button = (Button)template.FindName("PART_Button", datePicker);
        return button;
    }

    private void ChangeCalendarButtonVisibility(Visibility visibility)
    {
        var button = GetCalendarButton();
        if (button != null)
        {
            button.Visibility = visibility;
        }
    }
...

您甚至不需要在控件资源中存储datepicker样式。