typedefenum{ __VA_ARGS__ } enum_type; \ \ name(enum_type v): v_(v) {}\ \ enum_type Value()const{\returnv_;\ }\ \ std::stringToString()const{\staticstd::vector<std::string> m =GetMappings();\ auto i= static_cast<size_t>(v_);\if(i >m.size()) {\return#name":-In...
[SugarColumn(ColumnDataType = "varchar(100)", SqlParameterDbType = typeof(EnumToStringConvert))] public SerialCodeName CodeName { get; set; } SerialCodeName为自定义类型,在进行查询时生成的SQL查询中,并没有将枚举查询条件参数转换成字符串类型进行查询。 Db.Queryable<SysSerialNumber>().First(p => ...
"enum2string.h" #include <boost/preprocessor.hpp> #define X_DEFINE_ENUM_WITH_STRING_CONVERSIONS_TOSTRING_CASE(r, data, elem) \ caseelem :returnBOOST_PP_STRINGIZE(elem); #define DEFINE_ENUM_WITH_STRING_CONVERSIONS(name, enumerators) \ enumname { \ BOOST_PP_SEQ_ENUM(enumerators) \ }; \ ...
系统在写入配置文件时使用 ConvertTo 方法将类型转换为EnumString值。 适用于 产品版本 .NET Framework 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1 Windows Desktop 3.0, 3.1, 5, 6, 7, 8, 9 在...
public enum SortFilter { FirstName, LastName, Age, Experience } Now, let's say I want to display the string value of enum in some control. For that, I will have to convert Enum value to string. For example, I want to add all enum string values to a DropDownList. The following code...
ConvertTo 方法 ConvertToInvariantString 方法 ConvertToString 方法 CreateInstance 方法 GetCreateInstanceSupported 方法 GetProperties 方法 GetPropertiesSupported 方法 GetStandardValues 方法 GetStandardValuesExclusive 方法 GetStandardValuesSupported 方法 IsValid 方法 LocalizedEnumConverter 屬性Learn...
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HashMap<String, Enum<?>> map =newHashMap<String, Enum<?>>();//from last to first, so that in case of duplicate values, first winsfor(inti = enumValues.length; --i >= 0; ) { Enum<?> en =enumValues[i];try{ Object o=accessor.invoke(en);if(o !=null) { ...
ConvertTo(ITypeDescriptorContext, CultureInfo, Object, Type) 使用指定的內容和文化特性資訊,將指定的值物件轉換成指定的型別。 (覆寫 TypeConverter.ConvertTo(ITypeDescriptorContext, CultureInfo, Object, Type)。) 回頁首 請參閱 參考 BaseEnumStringConverter<T> 類別 Microsoft.VisualStudio.TestTools.WebTesti...
In this tutorial, we’ll explore how to convert a string into an enum object. 2. Introduction to the Problem As usual, let’s understand the problem through an example. Let’s say we have the enum classBaeldungNumber: enumclassBaeldungNumber{ ...