Avalonia 開發 分別選擇日期(DatePicker)/時間(TimePicker)的介面UI

資料來源: copilot+自己

XAML

<Window xmlns="https://github.com/avaloniaui"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
        x:Class="VPOS_Avalonia.DateTimePicker"
        Title="DateTimePicker" Loaded="Window_Loaded">
	<Border BorderBrush="LightBlue" BorderThickness="5" CornerRadius="10" Margin="-3">
		<Grid x:Name="FullGrid" RowDefinitions="1.5*,6*,2.5*" ColumnDefinitions="*" >
			<Border BorderBrush="Blue" BorderThickness="1" CornerRadius="10" Margin="0" Grid.Row="0" Grid.Column="0">
				<Grid x:Name="HeadGrid" RowDefinitions="*" ColumnDefinitions="*">
					<TextBlock x:Name="TitleLable" Text="日期/時間 選擇" Foreground="White" FontSize="22" Grid.Row="0" Grid.Column="0" VerticalAlignment="Center" HorizontalAlignment="Center" />
					<Button x:Name="CloseBtn" Content="X" Grid.Row="0" Grid.Column="0" FontSize="20" Background="Transparent" Foreground="White" VerticalAlignment="Center" HorizontalAlignment="Right" Margin="0,0,10,0" Click="CloseBtn_Clicked"/>
				</Grid><!--HeadGrid End-->
			</Border>

			<Border x:Name="BodyBorder" BorderBrush="White" BorderThickness="1" CornerRadius="10" Margin="5" Grid.Row="1" Grid.Column="0">
				<Grid x:Name="BodyGrid" RowDefinitions="*,*" ColumnDefinitions="1*,1.5*,30,1.5*,*" Margin="20,0,10,0">
					<TextBlock Text="日期:" VerticalAlignment="Center" Foreground="White" FontSize="20" Grid.Row="0" Grid.Column="0" />
					<DatePicker x:Name="DatePicker01" Width="300" VerticalAlignment="Center" HorizontalAlignment="Left" Background="White" FontSize="22" Grid.Row="0"  Grid.Column="1" Margin="5"/>

					<TextBlock Text="時間:" VerticalAlignment="Center" Foreground="White" FontSize="20" Grid.Row="1" Grid.Column="0" />
					<TimePicker Name="TimePicker" Width="300" VerticalAlignment="Center" HorizontalAlignment="Left" Background="White" FontSize="22" Grid.Row="1" Grid.Column="1" Margin="5"/>
				</Grid>
			</Border>

			<Grid x:Name="FooterGrid" RowDefinitions="*" ColumnDefinitions="0.2*,*,*,0.2*" Grid.Row="2" Grid.Column="0" >
				<Button x:Name="FooterBtn01" Content="確定" Foreground="White" Background="#cc6600" Grid.Row="0" Grid.Column="1" Click="FooterBtn01_Clicked" FontSize="20" Height="50" HorizontalAlignment="Stretch" VerticalContentAlignment="Center" HorizontalContentAlignment="Center" Margin="30,0"/>
				<Button x:Name="FooterBtn02" Content="取消" Foreground="White" Background="#cc6600" Grid.Row="0" Grid.Column="2" Click="CloseBtn_Clicked" FontSize="20" Height="50" HorizontalAlignment="Stretch" VerticalContentAlignment="Center" HorizontalContentAlignment="Center" Margin="30,0"/>
			</Grid>
		</Grid><!--FullGrid End-->
	</Border>
</Window>

CODE

using Avalonia;
using Avalonia.Controls;
using Avalonia.Interactivity;
using Avalonia.Markup.Xaml;
using Avalonia.Media;
using System;
using VPOS_Avalonia.ViewModels;

namespace VPOS_Avalonia;

public partial class DateTimePicker : Window
{
    public static bool m_blnRun = false;
    public static string m_StrResult = "";

    public DateTimePicker()
    {
        //隱藏工具列
        this.ExtendClientAreaToDecorationsHint = true;
        this.ExtendClientAreaTitleBarHeightHint = -1;
        this.SystemDecorations = SystemDecorations.None;
        //---隱藏工具列
        WindowStartupLocation = WindowStartupLocation.CenterScreen;//視窗置中
        this.Background = new SolidColorBrush(Color.Parse("#ff194a6e"));//設定背景色
        //this.WindowState = WindowState.Maximized;//視窗最大化非滿版
        InitializeComponent();
        this.Width = 500;
        this.Height = 300;
        FullGrid.IsVisible = false;
    }

    public void Window_Loaded(object sender, RoutedEventArgs e)
    {
        FullGrid.IsVisible = true;
        DatePicker01.SelectedDate = DateTime.Now.Date; // 設置初始日期
        TimePicker.SelectedTime = DateTime.Now.TimeOfDay; // 設置初始時間
    }

    private void CloseBtn_Clicked(object sender, RoutedEventArgs e)
    {
        m_blnRun = false;
        m_StrResult = "";
        Close();
    }
    private void FooterBtn01_Clicked(object sender, RoutedEventArgs e)
    {
        if((DatePicker01.SelectedDate!=null) &&(TimePicker.SelectedTime!=null))
        {
            m_blnRun = true;
            m_StrResult = DatePicker01.SelectedDate.Value.Date.ToString("yyyy-MM-dd") + $" {TimePicker.SelectedTime.Value.Hours.ToString().PadLeft(2,'0')}:{TimePicker.SelectedTime.Value.Minutes.ToString().PadLeft(2, '0')}:00";
            this.Close();
        }

    }
}