DataObject is the foundation of a BizBlox architecture. Actual data classes
inherit from this. Use the Builder tool to auto generate these inherited
classes.
Declaration Syntax| C# | Visual Basic | Visual C++ |
public abstract class DataObject : MarshalByRefObject
Public MustInherit Class DataObject _ Inherits MarshalByRefObject
public ref class DataObject abstract : public MarshalByRefObject
Members| All Members | Constructors | Methods | Properties | Fields | |
| Icon | Member | Description |
|---|---|---|
 | DataObject()()() |
Create a new object which has a insert context
The 'context' is determined by the initialisation of the object
if you initialise without a GUID then the object doesn't map to
a row and therefore will require data properties set.
Setting the ID property of a DataObject will not change load, save or delete.
it is actually just passive READ ONLY.
|
| DataObject(Guid) |
Create an object from a database lookup - has an update context
|
| DataObject(Guid, Boolean) | |
| DataObject(DOCollection%, Int32) | |
| DataObject(DataRow) | |
| DataObject(DataRow, array<DOSelection>[]()[]) | |
| AcceptTO(Object) |
Accept a transfer object (which inherits from DOTO) to populate this DataObject
|
 | CommitUpdateContext | |
| Copy(Object) |
copy all properties to a new object of the same type (except the UID)
|
| Delete(DOTransaction) |
Delete the object from the database.
|
| Delete()()() |
Delete the object from the database.
|
| ExistsInTable()()() |
Does this object exist in the table it maps to?
|
| GetLinkedColumn(String) | |
| GetLinkedColumn(DOSelection) | |
| GetLinkedTable(DataObject) | |
| GetLinkedTable(String) | |
| GetPropertyHelper()()() | |
| GetTO(Type) |
Get a data transfer object of the type defined by [toType] and populate it from
the data contained in the DataObject
|
 | IsNull(DateTime) |
Determine if a value is EQUIVALENT to a null.
|
| IsNull(Guid) |
Determine if a value is EQUIVALENT to a null.
|
| Load()()() |
Load the object from the database.
The DataObject's UID must already be set.
Performs a SELECT * and loads all columns.
|
| Load(array<Enum>[]()[]) |
Loads only the specified columns of a DataObject.
The DataObject's UID must already be set.
This is an alternative to the default Load, which
loads all columns (SELECT *).
The UID column is always loaded.
|
 | m_objDA | |
| Save()()() |
Commit the object (or its changes) to the database
|
| Save(DOTransaction) |
Commit the object (or its changes) to the database
|
| TableName()()() | |
 | Touch(Int32) |
all subclassed property SET methods *must* call this
subroutine to flag that the object has changed and
needs to be committed to the database.
|
| Uid()()() | Obsolete. |
| UidColumn()()() | |
| UIDColumnName()()() | Obsolete.
Get the column name of the Primary Key (UniqueID)
|
Remarks
The DataObject is designed to be inherited based on a simple
pattern as explained in exampleclient.vb code. This object
manages persistance through load and save methods.
Remember: the constructor is lazy and will only hit the database when
explicitly requested.
Inheritance Hierarchy| Object | ||
 | MarshalByRefObject | |
| DataObject | |