/// <include file='doc\RegionInfo.uex' path='docs/doc[@for="RegionInfo.RegionInfo1"]/*' />
public RegionInfo(int culture)
{
// Get the culture data item.
int cultureItem = CultureTable.GetDataItemFromCultureID(CultureInfo.GetLangID(culture));
if (cultureItem < 0)
{
// Not a valid culture ID.
throw new ArgumentException(Environment.GetResourceString("Argument_CultureNotSupported", culture), "culture");
}
if (culture == 0x7F) //The InvariantCulture has no matching region
{
throw new ArgumentException(Environment.GetResourceString("Argument_NoRegionInvariantCulture"));
}
//
// From this culture data item, get the region data item.
// We do this because several culture ID may map to the same region.
// For example, 0x1009 (English (Canada)) and 0x0c0c (French (Canada)) all map to
// the same region "CA" (Canada).
//
m_dataItem = CultureTable.GetDefaultInt32Value(cultureItem, CultureTable.IREGIONITEM);
if (m_dataItem == 0xffff)
{
throw new ArgumentException(Environment.GetResourceString("Argument_CultureIsNeutral", culture), "culture");
}
}
internal int culture; // the culture ID used to create this instance.
////////////////////////////////////////////////////////////////////////
//
// CompareInfo Constructor
//
//
////////////////////////////////////////////////////////////////////////
// Constructs an instance that most closely corresponds to the NLS locale
// identifier.
internal unsafe CompareInfo(GlobalizationAssembly ga, int culture)
{
if (culture < 0)
{
throw new ArgumentOutOfRangeException("culture", Environment.GetResourceString("ArgumentOutOfRange_NeedPosNum"));
}
// NOTENOTE YSLin: In the future, move all the culture validation to the native code InitializeCompareInfo, since we make three
// native calls below, which are expansive.
//
// Verify that this is a valid culture.
//
int dataItem = CultureTable.GetDataItemFromCultureID(CultureInfo.GetLangID(culture));
if (dataItem == -1)
{
throw new ArgumentException(
String.Format(Environment.GetResourceString("Argument_CultureNotSupported"), culture), "culture");
}
// We do the following because the native C++ SortingTable is based on the
// WIN32 LCID. It doesn't work for neutral cultures liek 0x0009. So we convert culture
// to a Win32 LCID here.
// Note that we have to get Sort ID from culture. This will affect the result of string comparison.
this.win32LCID = CultureTable.GetDefaultInt32Value(dataItem, CultureTable.WIN32LANGID);
int sortID = CultureInfo.GetSortID(culture);
if (sortID != 0)
{
// Need to verify if the Sort ID is valid.
if (!CultureTable.IsValidSortID(dataItem, sortID))
{
throw new ArgumentException(
String.Format(Environment.GetResourceString("Argument_CultureNotSupported"), culture), "culture");
}
// This is an alterinative sort LCID. Hey man, don't forget to take your SORTID with you.
win32LCID |= sortID << 16;
}
// TODO: InitializeCompareInfo should use ga instead of getting the default instance.
// Call to the native side to create/get the corresponding native C++ SortingTable for this culture.
// The returned value is a 32-bit pointer to the native C++ SortingTable instance.
// We cache this pointer so that we can call methods of the SortingTable directly.
pSortingTable = InitializeCompareInfo(GlobalizationAssembly.m_defaultInstance.pNativeGlobalizationAssembly, win32LCID);
// Since win32LCID can be different from the passed-in culture in the case of neutral cultures, store the culture ID in a different place.
this.culture = culture;
}