Visual Basic

Visual Basic

1. is engineered for productively building type-safe and object-oriented applications.

2. Forms

   • they are used to contain the most usual controls with which we will build our applications

3. Tool box

   • shows icons for controls and other elements that you can add to projects

4. Controls

   • Intrinsic controls
     • These controls are located within the Visual Basic executable file.
     • Check box
     • ComboBox
     • CommandButton
     • Data
     • DirListBox
     • FileListBox
     • DriveListBox
     • Frame
     • HScrollBar
     • HScrollBar
     • Image
     • OptionButton
   • ActiveX controls
     • they exist as independent files with extension file name .ocx.
       • ADODC
       • CommonDialog
       • DataGrid
       • DataList
       • MSFlexGrid

5. properties of objects

   • provide controlled access to internal details in a class

6. control structures

   • they are used to control the flow of the program in a routine or in a function

7. type of data

   • Boolean
   • Byte
   • Double
   • Integer
   • Long
   • Decimal
   • Single
   • String
   • Currency
   • Date
   • Object
   • Variant