public static object ObjToNullableEnum(object obj, Type enumType)
{
var enumStr = StringConv.ObjectSafeToString(obj);
if (StringEnumDeterminer.Is(enumStr, enumType))
{
return(StringEnumDeterminer.To(enumStr, enumType));
}
return(null);
}
public static TEnum?ObjToNullableEnum <TEnum>(object obj) where TEnum : struct, Enum
{
var enumStr = StringConv.ObjectSafeToString(obj);
if (StringEnumDeterminer <TEnum> .Is(enumStr))
{
return(StringEnumDeterminer <TEnum> .To(enumStr));
}
return(null);
}
private static bool FromObjToNullableTypeProxy(object fromObj, Type xType, out object result)
{
var innerType = Nullable.GetUnderlyingType(xType);
if (innerType == TypeClass.StringClass)
{
result = StringConv.ObjectSafeToString(fromObj);
return(true);
}
if (TypeHelper.IsNumericType(xType))
{
return(FromObjToNullableNumericType(fromObj, xType, out result));
}
if (TypeHelper.IsEnumType(innerType))
{
result = EnumConv.ObjToNullableEnum(fromObj, innerType);
}
if (TypeHelper.IsDateTimeTypes(innerType))
{
return(FromObjToNullableDateTimeType(fromObj, innerType, out result));
}
if (TypeHelper.IsGuidType(innerType))
{
result = GuidConv.ObjToNullableGuid(fromObj);
return(true);
}
if (innerType == TypeClass.ObjectClass)
{
result = fromObj;
return(true);
}
result = null;
return(false);
}
private static bool FromObjToTypeProxy <X>(object fromObj, X defaultVal, Type xType, out object result)
{
if (defaultVal is string defaultStr)
{
result = StringConv.ObjectSafeToString(fromObj, defaultStr);
return(true);
}
if (TypeHelper.IsNumericType(xType))
{
return(FromObjToNumericType(fromObj, defaultVal, xType, out result));
}
if (TypeHelper.IsEnumType(xType))
{
result = EnumConv.ObjToEnum(fromObj, xType, defaultVal);
return(true);
}
if (TypeHelper.IsDateTimeTypes(xType))
{
return(FromObjToDateTime(fromObj, defaultVal, xType, out result));
}
if (defaultVal is Guid defaultGuid)
{
result = GuidConv.ObjToGuid(fromObj, defaultGuid);
return(true);
}
if (xType == TypeClass.ObjectClass)
{
result = defaultVal;
return(true);
}
result = defaultVal;
return(false);
}
public static TEnum ObjToEnum <TEnum>(object obj, TEnum defaultVal = default) where TEnum : struct, Enum
{
return(StringEnumDeterminer <TEnum> .To(StringConv.ObjectSafeToString(obj), defaultVal : defaultVal));
}
public static object ObjToEnum(object obj, Type enumType, object defaultVal = default)
{
return(StringEnumDeterminer.To(StringConv.ObjectSafeToString(obj), enumType, defaultVal: defaultVal));
}