1. MS Access VBA Programming Fundamental of Built-In Objects

2. The Application Object
The Application object contains all of the object that you create or use and that belong to the database you are working on.
If you are planning to refer to the current database in your code, you can directly use the Application object. If you want to refer to a database other than the one that is currently opened, you should first declare an Application variable.

3. The Current Database
When working in a Microsoft Access application, the database that is currently opened is identified as the CurrentDb object. This object is a child of the Application object. The CurrentDb object allows you to refer to the current database in your code.

4. The Current Project
To identify the current project in your code, the Application object is equipped with a property called CurrentProject
To refer to the current project, you can declare a variable of type Object and initialize it with the Application.CurrentProject object. This would be done as follows:
Private Sub Detail_Click()
Dim CurrentDatabase As Object
Set CurrentDatabase = Application.CurrentProject
txtFilename = CurrentDatabase.FullName
End Sub

5. The Objects in the Current Database
While using an application, the objects that belong to the database are stored in a collection called CurrentData. The CurrentData object itself is a property of the Application object. To access the CurrentData object, you can first call the Application object, type the period operator, and type CurrentData. This would be done as follows: Application.CurrentData
The CurrentData object holds the collections of objects that belong to the database.

6. The Objects in the Current Database
Application.CurrentData.AllTables(2).Name
Private Function TableExists(ByVal tblName As String) As Boolean
Dim obj As AccessObject, dbs As Object
Set dbs = Application.CurrentData
Dim exists As Boolean
exists = False
For Each obj In dbs.AllTables
If obj.Name = tblName Then
exists = True
End If
Next obj
TableExists = exists
End Function

7. An Access Object
There are various types of objects you will use in your databases. Each object belongs to a particular collection. Still, to generally identify these various objects, each is identified as an AccessObject. This means that the AccessObject object is used to identify an object that belongs to a collection, whatever that object is and whatever its parent collection is.

8. Objects in MS Access:
AllForms, AllReports, AllTables, AllModules, AllMacros, AllQueries
Forms, Reports, Modules, Controls
Form, Report, Module, Control …

10. The DoCmd Object
This property is used to carry many of the actions you will need. An action performed on a database is also called a command.
The methods of the DoCmd are:
ddMenu
ApplyFilter
Beep
CancelEvent
Close
CopyDatabaseFile
CopyObject
DeleteObject
DoMenuItem
Echo
FindNext
FindRecord
GoToControl
GoToPage
GoToRecord
Hourglass
Maximize
Minimize
MoveSize
OpenDataAccessPage
OpenDiagram
OpenForm
OpenFunction
OpenModule
OpenQuery
OpenReport
OpenStoredProcedure
OpenTable
OpenView
OutputTo
PrintOut
Quit
Rename
RepaintObject
Requery
Restore
RunCommand
RunMacro
RunSQL
Save
SelectObject
SendObject
SetMenuItem
SetWarnings
ShowAllRecords
ShowToolbar
TransferDatabase
TransferSpreadsheet
TransferSQLDatabase
TransferText