Visual Studio/WPF > ObjectDataProvider > JST 및 UTC 보기 > Provider.Refresh() | 이벤트 추가 | DateTime.Now.ToLongTimeString()

운영 환경

Windows 7 Pro (32bit)
Microsoft Visual Studio 2017 Community

h tp : /// s ぇ l. ldb㎉g. jp / archi s / 52333863. HTML
를 바탕으로 학습 중.

다음과 같이 변경해 보았다.

UTC 용 Provider 추가

DateTime.UtcNow를 사용하여 UTC 표시

MainWindow.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace _170608_t1300_timer
{
    /// <summary>
    /// MainWindow.xaml の相互作用ロジック
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            MyClock myClock = this.Resources["keyMyClock"] as MyClock;
            myClock.ProviderJST = this.Resources["keyNowTime"] as ObjectDataProvider;
            myClock.ProviderUTC = this.Resources["keyUtcTime"] as ObjectDataProvider;
        }
    }
    public class MyClock
    {
        private System.Timers.Timer _timer = new System.Timers.Timer();
        public ObjectDataProvider ProviderJST { get; set; }
        public ObjectDataProvider ProviderUTC { get; set; }
        public MyClock()
        {
            _timer.Interval = 1000; // msec
            _timer.Elapsed += _timer_Elapsed; // イベント追加
            _timer.Enabled = true;
        }
        private void _timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
        {
            ProviderJST.Refresh();
            ProviderUTC.Refresh();
        }
        public string NowTime()
        {
            return "JST:" + DateTime.Now.ToLongDateString() + DateTime.Now.ToLongTimeString();
        }
        public string UtcTime()
        {
            return "UTC:" + DateTime.UtcNow.ToLongDateString() + DateTime.UtcNow.ToLongTimeString();                
        }
    }
}

MainWindow.xaml

<Window x:Class="_170608_t1300_timer.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        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"
        xmlns:local="clr-namespace:_170608_t1300_timer"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <local:MyClock x:Key="keyMyClock" />
        <ObjectDataProvider MethodName="NowTime" x:Key="keyNowTime"
                            ObjectInstance="{StaticResource keyMyClock}"/>
        <ObjectDataProvider MethodName="UtcTime" x:Key="keyUtcTime"
                            ObjectInstance="{StaticResource keyMyClock}"/>
    </Window.Resources>
    <Grid DataContext="{Binding Source={StaticResource keyNowTime}}">
        <StackPanel Margin="20">
            <TextBlock Height="28" Name="textJST" FontSize="18"
            Text="{Binding Source={StaticResource keyNowTime}}"/>
            <TextBlock Height="28" Name="textUTC" FontSize="18"
            Text="{Binding Source={StaticResource keyUtcTime}}"/>
        </StackPanel>
    </Grid>
</Window>

흠집

사경하는 가운데 XAML에서 이하의 실수를 한 것으로 시계가 표시되지 않았다.

        <ObjectDataProvider MethodName="NowTime" x:Key="keyNowTime"
                            ObjectInstance="={StaticResource keyMyClock}"/>

정확하게는 아래.

        <ObjectDataProvider MethodName="NowTime" x:Key="keyNowTime"
                            ObjectInstance="{StaticResource keyMyClock}"/>

{StaticResource 앞에 여분의 =를 입력했습니다.

관련 링크

[XAML/C#] WPF에서 타이머를 사용하려면(Windows Form에서 WPF로)
htps : // 여기. msd 응. 미 c 로소 ft. 이 m / 우동 ws에서 sk와 p / MLCVB - WPF - 우동 ws - WPF - 2 아 b6085

v0.2

XAML 변경.

MainWindow.xaml

<Window x:Class="_170608_t1300_timer.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        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"
        xmlns:local="clr-namespace:_170608_t1300_timer"
        mc:Ignorable="d"
        Title="MainWindow" Height="350" Width="525">
    <Window.Resources>
        <local:MyClock x:Key="keyMyClock" />
        <ObjectDataProvider MethodName="NowTime" x:Key="keyNowTime"
                            ObjectInstance="{StaticResource keyMyClock}"/>
        <ObjectDataProvider MethodName="UtcTime" x:Key="keyUtcTime"
                            ObjectInstance="{StaticResource keyMyClock}"/>
    </Window.Resources>
    <!--<Grid DataContext="{Binding Source={StaticResource keyNowTime}}">-->
    <Grid>
        <StackPanel Margin="20">
            <TextBlock Height="28" Name="textJST" FontSize="18"
            Text="{Binding Source={StaticResource keyNowTime}}"/>
            <TextBlock Height="28" Name="textUTC" FontSize="18"
            Text="{Binding Source={StaticResource keyUtcTime}}"/>
        </StackPanel>
    </Grid>
</Window>

Grid에 Binding하지 않아도 좋은 것 같다.
(전 기사의 코멘트란에 불필요한 것이 기재되어 있었다).