Thus, if a data type is astring, the computer might interpret it as the name of a person or city, a greeting and so on. However, if the data is of typeBoolean, the computer will know that it can only have one of two values: true or false. Similarly, the computer will interpret w...
EnumDataTypeAttribute.IsValid(Object) 方法 参考 反馈 命名空间: System.ComponentModel.DataAnnotations 程序集: System.ComponentModel.Annotations.dll Source: EnumDataTypeAttribute.cs 检查数据字段的值是否有效。 C# publicoverrideboolIsValid(object?value); ...
tf = isa(A,classname) returns 1 (true) if A is an instance of classname or a subclass of classname. Otherwise, it returns 0 (false). The input argument A can have any data type. If A is an object, then isa returns 1 if dataType is either the class of A or a superclass of ...
Go MySQL Driver is an implementation of Go's database/sql/driver interface. You only need to import the driver and can use the full database/sql API then.Use mysql as driverName and a valid DSN as dataSourceName:import ( "database/sql" "time" _ "github.com/go-sql-driver/mysql" )...
CM_ENUM_FLAGS 枚举 CM_MASK 枚举 CM_SET_WIDTH_VALUE 枚举 CM_STATE 枚举 CMINVOKECOMMANDINFO 结构 CMINVOKECOMMANDINFOEX 结构 DATAOBJ_GET_ITEM_FLAGS 枚举 DEF_SHARE_ID 枚举 DEFAULT_FOLDER_MENU_RESTRICTIONS枚举 DEFAULTSAVEFOLDERTYPE 枚举 DELEGATEITEMID 结构 DESKBANDINFO 结构 DESKTOP_WALLPAPER_POSITION ...
'<elementname>' for the Imports alias to '<qualifiedelementname>' does not refer to a Namespace, Class, Structure, Interface, Enum or Module '<elementname>' is ambiguous because multiple kinds of members with this name exist in <type> '<typename>' '<elementname>' is not a method param...
enums String Arrays (int[], String[], Customer[], etc) List List<?> List or Map Map Map Object Reference (@AerospikeRecord) List or MapThese types are built into the converter. However, if you wish to change them, you can use a Custom Object Converter. For example, if you want Da...
DataMisalignedException DateOnly DateTime DateTimeKind DateTimeOffset DayOfWeek DBNull Decimal Delegate Delegate.InvocationListEnumerator<TDelegate> DivideByZeroException DllNotFoundException Double DuplicateWaitObjectException EntryPointNotFoundException Enum Environment Environment.ProcessCpuUsage Environment.SpecialFolder...
@Data publicenumResultStatusType{ ... } 1. 2. 3. 4. 报错如下 '@Data' is only supported on a class type 原因分析 @Data只能写在class中,无法写在enum上,写上@Getter就行。 @Getter publicenumResultStatusType{ ... } 1. 2. 3.
AutoCompleteDataMode AutoNoYes AxaptaCOMConnectorMonitor BinaryIo BinData boolean BreakpointNotify ButtonGroupStyle ButtonImage ButtonStyle CachedHow Cardinality ChangeGroupMode CheckBoxStyle ChildrenAccessType ClassNode ClientPrintJobSettings ClientType COM COMArgument COMDispContext COMDispFunction COMEnum2Obj...