/// <summary>
/// Convert the three-digit ISO-4217 currency code to the equivalent <see cref="CurrencyInfo"/>, a return value indicating whether it was successful.
/// </summary>
/// <param name="numeric">The numeric.</param>
/// <param name="result">The result.</param>
/// <returns></returns>
public static bool TryFromNumeric(string numeric, out CurrencyInfo result)
{
result = default;
if (string.IsNullOrWhiteSpace(numeric))
{
return(false);
}
numeric = numeric.Trim();
if (numeric.Length != CodeLength)
{
return(false);
}
result = currencies.SingleOrDefault(item => string.Equals(item.Numeric, numeric, StringComparison.OrdinalIgnoreCase));
return(!string.IsNullOrWhiteSpace(result.Code));
}
/// <summary>
/// Convert the three-letter ISO-4217 currency code to the equivalent <see cref="CurrencyInfo"/>, a return value indicating whether it was successful.
/// </summary>
/// <param name="code">The code.</param>
/// <param name="result">The result.</param>
/// <returns></returns>
public static bool TryFromCode(string code, out CurrencyInfo result)
{
result = default;
if (string.IsNullOrWhiteSpace(code))
{
return(false);
}
code = code.Trim();
if (code.Length != CodeLength)
{
return(false);
}
result = currencies.SingleOrDefault(item => string.Equals(item.Code, code, StringComparison.OrdinalIgnoreCase));
return(!string.IsNullOrWhiteSpace(result.Code));
}
/// <summary>
/// Converts the string representation of a number to its <see cref="Money" /> equivalent. A return value indicates whether the conversion succeeded or failed.
/// </summary>
/// <param name="value">The value.</param>
/// <param name="result">The result.</param>
/// <returns></returns>
public static bool TryParse(string value, out Money result)
{
result = default;
if (string.IsNullOrWhiteSpace(value))
{
return(false);
}
value = value.Trim();
if (string.IsNullOrEmpty(value))
{
return(false);
}
if (char.IsNumber(value[0]))
{
if (decimal.TryParse(value, out var tmp))
{
result = new Money(CurrencyInfo.CurrentCurrency, tmp);
return(true);
}
return(false);
}
if (value.Length < 3)
{
return(false);
}
if (CurrencyInfo.TryFromCode(value.Substring(0, 3), out var currency))
{
if (value.Length == 3)
{
result = new Money(currency, decimal.Zero);
}
else
{
if (decimal.TryParse(value.Substring(3).Trim().TrimStart(currency.Symbol.ToCharArray()), out var tmp))
{
result = new Money(currency, tmp);
}
else
{
return(false);
}
}
return(true);
}
return(false);
}
public static bool TryFromCulture(CultureInfo culture, out CurrencyInfo result)
{
result = default;
if (culture == null)
{
return(false);
}
if (culture.IsNeutralCulture)
{
return(false);
}
if (string.IsNullOrWhiteSpace(culture.Name))
{
return(false);
}
try
{
return(TryFromRegion(new RegionInfo(culture.Name), out result));
}
catch
{
return(false);
}
}
private static IFormatProvider GetFormatProvider(CurrencyInfo currency, IFormatProvider provider, bool useCode = false)
{
NumberFormatInfo numberFormatInfo = null;
if (provider != null)
{
if (provider is CultureInfo culture)
{
numberFormatInfo = culture.NumberFormat.Clone() as NumberFormatInfo;
}
if (provider is NumberFormatInfo format)
{
numberFormatInfo = format.Clone() as NumberFormatInfo;
}
}
else
{
numberFormatInfo = CultureInfo.CurrentCulture.NumberFormat.Clone() as NumberFormatInfo;
}
if (numberFormatInfo == null)
{
return(null);
}
numberFormatInfo.CurrencyDecimalDigits = (int)currency.DecimalDigits;
numberFormatInfo.CurrencySymbol = currency.Symbol;
if (useCode)
{
numberFormatInfo.CurrencySymbol = currency.Code;
if (numberFormatInfo.CurrencyPositivePattern == 0)
{
numberFormatInfo.CurrencyPositivePattern = 2;
}
if (numberFormatInfo.CurrencyPositivePattern == 1)
{
numberFormatInfo.CurrencyPositivePattern = 3;
}
switch (numberFormatInfo.CurrencyNegativePattern)
{
case 0: numberFormatInfo.CurrencyNegativePattern = 14; break;
case 1: numberFormatInfo.CurrencyNegativePattern = 9; break;
case 2: numberFormatInfo.CurrencyNegativePattern = 12; break;
case 3: numberFormatInfo.CurrencyNegativePattern = 11; break;
case 4: numberFormatInfo.CurrencyNegativePattern = 15; break;
case 5: numberFormatInfo.CurrencyNegativePattern = 8; break;
case 6: numberFormatInfo.CurrencyNegativePattern = 13; break;
case 7: numberFormatInfo.CurrencyNegativePattern = 10; break;
}
}
return(numberFormatInfo);
}