internal Dictionary <string, OleDbPropertyInfo> GetValues()
{
Dictionary <string, OleDbPropertyInfo> propertyLookup = null;
bool mustRelease = false;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
DangerousAddRef(ref mustRelease);
if (ADP.PtrZero != this.handle)
{
propertyLookup = new Dictionary <string, OleDbPropertyInfo>(StringComparer.OrdinalIgnoreCase);
IntPtr setPtr = this.handle;
ItagDBPROPINFO propinfo = OleDbStructHelpers.CreateTagDbPropInfo();
tagDBPROPINFOSET propinfoset = new tagDBPROPINFOSET();
for (int i = 0; i < setCount; ++i, setPtr = ADP.IntPtrOffset(setPtr, ODB.SizeOf_tagDBPROPINFOSET))
{
Marshal.PtrToStructure(setPtr, propinfoset);
int infoCount = propinfoset.cPropertyInfos;
IntPtr infoPtr = propinfoset.rgPropertyInfos;
for (int k = 0; k < infoCount; ++k, infoPtr = ADP.IntPtrOffset(infoPtr, ODB.SizeOf_tagDBPROPINFO))
{
Marshal.PtrToStructure(infoPtr, propinfo);
OleDbPropertyInfo propertyInfo = new OleDbPropertyInfo();
propertyInfo._propertySet = propinfoset.guidPropertySet;
propertyInfo._propertyID = propinfo.dwPropertyID;
propertyInfo._flags = propinfo.dwFlags;
propertyInfo._vtype = propinfo.vtType;
propertyInfo._supportedValues = propinfo.vValue;
propertyInfo._description = propinfo.pwszDescription;
propertyInfo._lowercase = propinfo.pwszDescription.ToLowerInvariant();
propertyInfo._type = PropertyInfoSet.FromVtType(propinfo.vtType);
propertyLookup[propertyInfo._lowercase] = propertyInfo;
}
}
}
}
finally
{
if (mustRelease)
{
DangerousRelease();
}
}
return(propertyLookup);
}
