| static private ParseSingle ( String value, NumberStyles options, NumberFormatInfo numfmt ) : Single | ||
| value | String | |
| options | NumberStyles | |
| numfmt | NumberFormatInfo | |
| Résultat | Single | |
// Parses a float from a String in the given style. If
// a NumberFormatInfo isn't specified, the current culture's
// NumberFormatInfo is assumed.
//
// This method will not throw an OverflowException, but will return
// PositiveInfinity or NegativeInfinity for a number that is too
// large or too small.
//
//| <include path='docs/doc[@for="Single.Parse3"]/*' />
public static float Parse(String s, NumberStyles style)
{
try {
return(Number.ParseSingle(s, style));
}
catch (FormatException) {
//If we caught a FormatException, it may be from one of our special strings.
//Check the three with which we're concerned and rethrow if it's not one of
//those strings.
String sTrim = s.Trim();
if (sTrim.Equals(NumberFormatInfo.positiveInfinitySymbol))
{
return(PositiveInfinity);
}
if (sTrim.Equals(NumberFormatInfo.negativeInfinitySymbol))
{
return(NegativeInfinity);
}
if (sTrim.Equals(NumberFormatInfo.nanSymbol))
{
return(NaN);
}
//Rethrow the previous exception;
throw;
}
}
public static float Parse(String s, IFormatProvider provider)
{
if (s == null)
{
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.s);
}
return(Number.ParseSingle(s, NumberStyles.Float | NumberStyles.AllowThousands, NumberFormatInfo.GetInstance(provider)));
}
// Parses a float from a String in the given style. If
// a NumberFormatInfo isn't specified, the current culture's
// NumberFormatInfo is assumed.
//
// This method will not throw an OverflowException, but will return
// PositiveInfinity or NegativeInfinity for a number that is too
// large or too small.
//
public static float Parse(String s)
{
if (s == null)
{
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.s);
}
return(Number.ParseSingle(s, NumberStyles.Float | NumberStyles.AllowThousands, NumberFormatInfo.CurrentInfo));
}
public static float Parse(String s, NumberStyles style, IFormatProvider provider)
{
NumberFormatInfo.ValidateParseStyleFloatingPoint(style);
if (s == null)
{
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.s);
}
return(Number.ParseSingle(s, style, NumberFormatInfo.GetInstance(provider)));
}
public static float Parse(string s, NumberStyles style)
{
NumberFormatInfo.ValidateParseStyleFloatingPoint(style);
if (s == null)
{
ThrowHelper.ThrowArgumentNullException(ExceptionArgument.s);
}
return(Number.ParseSingle(s, style, NumberFormatInfo.CurrentInfo));
}
private static float Parse(string s, NumberStyles style, NumberFormatInfo info)
{
try
{
return(Number.ParseSingle(s, style, info));
}
catch (FormatException)
{
string str = s.Trim();
if (str.Equals(info.PositiveInfinitySymbol))
{
return(PositiveInfinity);
}
if (str.Equals(info.NegativeInfinitySymbol))
{
return(NegativeInfinity);
}
if (!str.Equals(info.NaNSymbol))
{
throw;
}
return(NaN);
}
}
private static float Parse(String s, NumberStyles style, NumberFormatInfo info)
{
return(Number.ParseSingle(s, style, info));
}
public static float Parse(ReadOnlySpan <char> s, NumberStyles style = NumberStyles.Float | NumberStyles.AllowThousands, IFormatProvider provider = null)
{
NumberFormatInfo.ValidateParseStyleFloatingPoint(style);
return(Number.ParseSingle(s, style, NumberFormatInfo.GetInstance(provider)));
}
public static float Parse(string s, NumberStyles style, IFormatProvider provider)
{
NumberFormatInfo2.ValidateParseStyleFloatingPoint(style);
return(Number.ParseSingle(s, style, NumberFormatInfo.GetInstance(provider)));
}
public static float Parse(string s, NumberStyles style)
{
NumberFormatInfo2.ValidateParseStyleFloatingPoint(style);
return(Number.ParseSingle(s, style, NumberFormatInfo.CurrentInfo));
}
public static float Parse(string s, IFormatProvider provider)
{
return(Number.ParseSingle(s, NumberStyles.Float | NumberStyles.AllowThousands, NumberFormatInfo.GetInstance(provider)));
}
public static float Parse(string s)
{
return(Number.ParseSingle(s, NumberStyles.Float | NumberStyles.AllowThousands, NumberFormatInfo.CurrentInfo));
}
