A table type definition does not allocate space. It defines a type, which you can use as: The datatype of a column of a relational table An object type attribute A PL/SQL variable, parameter, or function return type When a table type appears as the type of a column in a relational ...
A method is a procedure or function that is part of the object type definition and that can operate on the object type data attributes. Such methods are calledmember methods, and they take the keywordMEMBERwhen you specify them as a component of the object type. TheDataStreamtype definition d...
Object Type Person functionPerson(first, last, age, eye) { this.firstName= first; this.lastName= last; this.age= age; this.eyeColor= eye; } Try it yourself » Note: In the constructor function,thishas no value. The value ofthiswill become the new object when a new object is creat...
Use the Remove method of the UserDefinedDatatype to remove the data type definition from the SQL Server. 展开表 注意: The UserDefinedDatatype object is compatible with instances of SQL Server 2000 and SQL Server version 7.0. However, the UserDefinedDatatype2 object extends the functionality of...
Definition Namespace: System.ComponentModel Assemblies: netstandard.dll, System.ComponentModel.TypeConverter.dll Source: DataObjectAttribute.cs Identifies a type as an object suitable for binding to anObjectDataSourceobject. This class cannot be inherited. ...
DefinitionNamespace: System.Data.Objects Assembly: System.Data.Entity.dll Represents a typed query against a conceptual model in a given object context.C# Копиране public class ObjectQuery<T> : System.Data.Objects.ObjectQuery, System.Collections.Generic.IEnumerable<T>, System....
Definition Namespace: System.Windows.Forms Assembly: System.Windows.Forms.dll Initializes a new instance of the DataObject class. Overloads 展开表 DataObject() Initializes a new instance of the DataObject class. DataObject(Object) Initializes a new instance of the DataObject class and ad...
CLASScl DEFINITION. PUBLIC SECTION. DATA: i VALUE 1. ENDCLASS. CLASScl IMPLEMENTATION. ENDCLASS. DATA: obj TYPE REF TO cl. CREATE OBJECTobj."创建对象 DATA: oref LIKE REF TO obj. "oref即为对象引用,即对象指针,指向某个对象,存储对象地址 ...
Definition Namespace: System.Windows Assembly: PresentationCore.dll Provides a basic implementation of theIDataObjectinterface, which defines a format-independent mechanism for transferring data. C#Copy publicsealedclassDataObject:System.Runtime.InteropServices.ComTypes.IDataObject,System.Windows.IDataObject ...
DefinitionNamespace: System.Web.UI.WebControls Assembly: System.Web.dll Represents a business object that provides data to data-bound controls in multitier Web application architectures.C# Copy [System.Drawing.ToolboxBitmap(typeof(System.Web.UI.WebControls.ObjectDataSource))] public class Object...