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New in .NET 9.0 (13): More accuracy for Tarksspan

21/03/2025

data structure System.TimeSpan 2002.Net has been a small challenge in the .NET 9.0 since the first version of the .NET Framework. FromMicroseconds(), FromSeconds(), FromMinutes(), FromHours() And FromDays() Expect a dual value as a parameter, which is wrong as a floating point number.

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Therefore Microsoft introduces. int Or long – Expect as a parameter:

public static TimeSpan FromDays(int days);
public static TimeSpan FromDays(int days, int hours = 0, long minutes = 0, long seconds = 0, long milliseconds = 0, long microseconds = 0);
public static TimeSpan FromHours(int hours);
public static TimeSpan FromHours(int hours, long minutes = 0, long seconds = 0, long milliseconds = 0, long microseconds = 0);
public static TimeSpan FromMinutes(long minutes);
public static TimeSpan FromMinutes(long minutes, long seconds = 0, long milliseconds = 0, long microseconds = 0);
public static TimeSpan FromSeconds(long seconds);
public static TimeSpan FromSeconds(long seconds, long milliseconds = 0, long microseconds = 0);
public static TimeSpan FromMilliseconds(long milliseconds, long microseconds = 0);
public static TimeSpan FromMicroseconds(long microseconds);

The following example proves the greater accuracy of new overcharges using the example FromSeconds(),

public class FCL9_TimeSpanFrom
{
 public void Run()
 {
  CUI.Demo(nameof(FCL9_TimeSpanFrom));
 
  // bisher
  TimeSpan timeSpan1a = TimeSpan.FromSeconds(value: 123.456);
  Console.WriteLine($"TimeSpan +123.456sec alt = {timeSpan1a}"); 
  // 00:02:03.4560000
 
  // bisher
  TimeSpan timeSpan2a = TimeSpan.FromSeconds(value: 101.832);
  Console.WriteLine($"TimeSpan +101.832sec alt = {timeSpan2a}"); 
  // 00:01:41.8319999
 
  Console.WriteLine();
 
  // neu
  TimeSpan timeSpan1n = TimeSpan.FromSeconds(seconds: 123, 
                                             milliseconds: 456);
  Console.WriteLine($"TimeSpan +123.456sec neu = {timeSpan1n}"); 
  // 00:02:03.4560000
 
  // neu
  TimeSpan timeSpan2n = TimeSpan.FromSeconds(seconds: 101, 
                                             milliseconds: 832);
  Console.WriteLine($"TimeSpan +101.832sec neu = {timeSpan2n}"); 
  // 00:01:41.8320000
 }
 
}