|
private ReadOnly ( |
||
| calendar | ||
| Результат | ||
public static CultureInfo ReadOnly(CultureInfo ci)
{
if (ci == null)
{
throw new ArgumentNullException("ci");
}
Contract.Ensures(Contract.Result <CultureInfo>() != null);
Contract.EndContractBlock();
if (ci.IsReadOnly)
{
return(ci);
}
CultureInfo newInfo = (CultureInfo)(ci.MemberwiseClone());
if (!ci.IsNeutralCulture)
{
//If this is exactly our type, we can make certain optimizations so that we don't allocate NumberFormatInfo or DTFI unless
//they've already been allocated. If this is a derived type, we'll take a more generic codepath.
if (!ci.m_isInherited)
{
if (ci.dateTimeInfo != null)
{
newInfo.dateTimeInfo = DateTimeFormatInfo.ReadOnly(ci.dateTimeInfo);
}
if (ci.numInfo != null)
{
newInfo.numInfo = NumberFormatInfo.ReadOnly(ci.numInfo);
}
}
else
{
newInfo.DateTimeFormat = DateTimeFormatInfo.ReadOnly(ci.DateTimeFormat);
newInfo.NumberFormat = NumberFormatInfo.ReadOnly(ci.NumberFormat);
}
}
if (ci._textInfo != null)
{
newInfo._textInfo = TextInfo.ReadOnly(ci._textInfo);
}
if (ci._calendar != null)
{
newInfo._calendar = Calendar.ReadOnly(ci._calendar);
}
// Don't set the read-only flag too early.
// We should set the read-only flag here. Otherwise, info.DateTimeFormat will not be able to set.
newInfo._isReadOnly = true;
return(newInfo);
}