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wg_cpso/CaeGlobals/UnitSystem/StringToDouble/StringReciprocalTimeConverter.cs

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C#
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2026-03-25 18:20:24 +08:00
using System;
using System.Collections.Generic;
using System.Collections;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.ComponentModel;
using System.Globalization;
using UnitsNet.Units;
using UnitsNet;
namespace CaeGlobals
{
public class StringReciprocalTimeConverter : TypeConverter
{
// Variables
protected static DurationUnit _durationUnit = DurationUnit.Second;
protected static string error = "Unable to parse quantity. Expected the form \"{value} {unit abbreviation}" +
"\", such as \"5.5 m\". The spacing is optional.";
// Properties
public static string SetUnit
{
set
{
if (value == "")
{
_durationUnit = (DurationUnit)MyUnit.NoUnit;
}
else
{
_durationUnit = Duration.ParseUnit(value);
}
}
}
public static string GetUnitAbbreviation(DurationUnit durationUnit)
{
if ((int)durationUnit == MyUnit.NoUnit) return "";
else return "/" + Duration.GetAbbreviation(durationUnit);
}
// Constructors
public StringReciprocalTimeConverter()
{
}
// Methods
public override bool CanConvertFrom(ITypeDescriptorContext context, Type sourceType)
{
if (sourceType == typeof(string)) return true;
else return base.CanConvertFrom(context, sourceType);
}
public override object ConvertFrom(ITypeDescriptorContext context, CultureInfo culture, object value)
{
// Convert from string
if (value is string valueString) return MyNCalc.ConvertFromString(valueString, ConvertToCurrentUnits);
else return base.ConvertFrom(context, culture, value);
}
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType)
{
try
{
if (destinationType == typeof(string))
{
if (value is double valueDouble)
{
string valueString = valueDouble.ToString();
string unit = GetUnitAbbreviation(_durationUnit);
if (unit.Length > 0) valueString += " " + unit;
return valueString;
}
}
return base.ConvertTo(context, culture, value, destinationType);
}
catch
{
return base.ConvertTo(context, culture, value, destinationType);
}
}
//
public static double ConvertToCurrentUnits(string valueWithUnitString)
{
try
{
valueWithUnitString = valueWithUnitString.Trim().Replace(" ", "");
//
string[] tmp = valueWithUnitString.Split('/');
if (tmp.Length != 2) throw new FormatException(error);
//
double baseValue;
if (!double.TryParse(tmp[0], out baseValue)) throw new FormatException(error);
// NoUnit
if ((int)_durationUnit == MyUnit.NoUnit) return baseValue;
//
DurationUnit durationUnit = Duration.ParseUnit(tmp[1]);
Duration duration = Duration.From(1, durationUnit).ToUnit(_durationUnit);
//
double value = baseValue / duration.Value;
return value;
}
catch (Exception ex)
{
throw new Exception(ex.Message + Environment.NewLine + Environment.NewLine + SupportedUnitAbbreviations());
}
}
public static string SupportedUnitAbbreviations()
{
return StringTimeConverter.SupportedUnitAbbreviations();
}
}
}