WPF & C# - DateTime과 TimeSpan ( 시간 설정 / 이동 / 요일 / 셋팅 / UTC / 포멧 / ParseExact / 변환 )

WPF & C# - DateTime과 TimeSpan ( 시간 설정 / 이동 / 요일 / 셋팅 / UTC / 포멧 / ParseExact / 변환 )

DateTime_TimeSpan.zip

MainWindow.xaml

<StackPanel>
<!--DateTime-->
<TextBlock Text="DateTime ( 정해진 시각 )" FontWeight="Bold" FontSize="18" Margin="10"></TextBlock>
<WrapPanel Orientation="Horizontal">
<!-- 시간설정 -->
<StackPanel Margin="10">
    <Button x:Name="btn00" Content="시간설정" Height="30" Click="btn00_Click" Margin="5"/>
    <Label x:Name="lbl00" Margin="5"></Label>
</StackPanel>
 
<!-- 이동 -->
<StackPanel Margin="10">
    <Button x:Name="btn01" Content="이동" Height="30" Click="btn01_Click" Margin="5"/>
    <Label x:Name="lbl01" Margin="5"></Label>
</StackPanel>
 
<!-- 요일 -->
<StackPanel Margin="10">
    <Button x:Name="btn03" Content="요일" Height="30" Margin="5" Click="btn03_Click"/>
    <Label x:Name="lbl03" Margin="5"></Label>
</StackPanel>
 
<!-- Local / UTC -->
<StackPanel Margin="10">
    <Button x:Name="btn04" Content="Local(+9시간) / UTC" Height="30" Margin="5" Click="btn04_Click"/>
    <Label x:Name="lbl04" Margin="5"></Label>
</StackPanel>
 
<!-- Format 포멧 변경 -->
<StackPanel Margin="10">
    <Button x:Name="btn02" Content="DateTime > String (ToString)" Height="30" Margin="5" Click="btn02_Click"/>
    <Label x:Name="lbl02" Margin="5"></Label>
</StackPanel>
 
<!-- ParseExact(포멧/형식) -->
<StackPanel Margin="10">
    <Button x:Name="btn05" Content="String > DateTime (ParseExact)" Height="30" Margin="5" Click="btn05_Click"/>
    <Label x:Name="lbl05" Margin="5"></Label>
</StackPanel>
</WrapPanel>
 
<!--TimeSpan-->
<TextBlock Text="TimeSpan ( 시간의 크기)" FontWeight="Bold" FontSize="18" Margin="10"></TextBlock>
<WrapPanel Orientation="Horizontal">
 
<!-- TimeSpan 기본값 -->
<StackPanel Margin="10">
    <Button x:Name="btn07" Content="TimeSpan 기본값" Height="30" Margin="5" Click="btn07_Click"/>
    <Label x:Name="lbl07" Margin="5"></Label>
</StackPanel>
 
<!-- 시간 합산하기 -->
<StackPanel Margin="10">
    <Button x:Name="btn06" Content="시간 합산하기 TimeSpan(1, 2, 3)" Height="30" Margin="5" Click="btn06_Click"/>
    <Label x:Name="lbl06" Margin="5"></Label>
</StackPanel>
 
<!-- 시간 변환 -->
<StackPanel Margin="10">
    <Button x:Name="btn08" Content="시간 변환(일일)" Height="30" Margin="5" Click="btn08_Click"/>
    <Label x:Name="lbl08" Margin="5"></Label>
</StackPanel>
 
</WrapPanel>
 
</StackPanel>

MainWindow.xaml.cs

// 날짜 및 시간 설정
private void btn00_Click(object sender, RoutedEventArgs e)
{
    lbl00.Content = DateTime.Now + "\n";   // 현재시간
    lbl00.Content += default(DateTime).ToString();   // 시간 기본값 (초기화)
}
 
// 날짜 및 시간 이동
private void btn01_Click(object sender, RoutedEventArgs e)
{
    DateTime dt = DateTime.Now;   //DateTime.Now;   // 현재시간
    DateTime tomorrow = dt.AddDays(1);   // 하루 뒤
    DateTime yesterday = dt.AddDays(-1);   // 하루 전
    DateTime NextHour = dt.AddHours(1);   // 한시간 뒤
 
    lbl01.Content = tomorrow.ToString();
    lbl01.Content += "\n" + yesterday.ToString();
    lbl01.Content += "\n" + NextHour.ToString();
}
 
// 요일
private void btn03_Click(object sender, RoutedEventArgs e)
{
    DateTime dt = DateTime.Now;   //DateTime.Now;   // 현재시간
    lbl03.Content = dt.DayOfWeek;
}
 
// Local / UTC
private void btn04_Click(object sender, RoutedEventArgs e)
{
    DateTime dt = DateTime.Now;   //DateTime.Now;   // 현재시간
    lbl04.Content = dt.ToLocalTime() + "\n";
    lbl04.Content += dt.ToUniversalTime().ToString();
}
 
// Format 포멧
private void btn02_Click(object sender, RoutedEventArgs e)
{
    DateTime dt = new DateTime(2018, 09, 01, 15, 16, 17, DateTimeKind.Local);   //DateTime.Now;   // 현재시간
    lbl02.Content = String.Format(dt.ToString("yyyy년MM월dd일 tthh시mm분ss.fffffff초")) + "\n";
    lbl02.Content += String.Format(dt.ToString("yyyy년MM월dd일 HH시mm분ss.fffffff초"));  // tt : (AM/PM), hh/HH
}
 
// ParseExact(포멧/형식)
private void btn05_Click(object sender, RoutedEventArgs e)
{
    string date = "20180828";
    DateTime dt = DateTime.ParseExact(date, "yyyyMMdd", System.Globalization.CultureInfo.InvariantCulture);
    lbl05.Content = date;
    lbl05.Content += dt.ToString();
}
 
// TimeSpan 기본값
private void btn07_Click(object sender, RoutedEventArgs e)
{
    lbl07.Content = default(TimeSpan);
}
 
// 시간 합산하기
private void btn06_Click(object sender, RoutedEventArgs e)
{
    DateTime dt = DateTime.Now;
    TimeSpan ts = new TimeSpan(1, 2, 3);
    lbl06.Content = dt + "\n";
    lbl06.Content += (dt - ts).ToString();
}
 
// 시간 변환
private void btn08_Click(object sender, RoutedEventArgs e)
{
    DateTime dt = DateTime.Now;
    TimeSpan tod = dt.TimeOfDay;
 
    lbl08.Content = dt + "\n";
    lbl08.Content += tod.TotalMinutes.ToString() + "분";
}