Commonly Used Controls Computer II: Programming with Visual

Basic

3rd Quarter Outline of Topics

Controls and their Codes Variables and Constants Operators and Functions Conditional Statements

› If-Then› If-Then-Else› Nested Ifs› Select Case

Terms

Procedure – declarations that are performed when you do an action to an object

Design Time Run Time Events – Methods -

Form Properties

Caption – sets the text on the title bar Back Color – background color Control Box

› True: Makes the Control Menu visible

› False: Hides the Control Menu

Form Properties

BorderStyle › 0 – None: Can’t be resized, No Title Bar› 1- Fixed Single: Border can’t be resized at

runtime, Title Bar only has the close button, cannot be moved

› 2 – Sizable: Default Setting, Border can be resized and Title Bar has Minimize, Maximize and Close Buttons

0-NONE 1-FIXED

SINGLE

2-SIZABLE

Common Form Event

Load – performed as the form is being loaded › Can be accessed by double-clicking an

empty space on the form

Sample Code:Private Sub Form_Load

Form1.BackColor = vbBlueEnd Sub

Design TimeRun Time

Command Button Properties

Caption – sets the text on the button Default – determines which is the

default command button on the form› True: Button is activated when Enter is

pressed Cancel – indicates whether a button is

the cancel button in a form› True: Button is activated when ESC is

pressed

*Note: You can only have one Default and Cancel button on a Form

Command Button Properties

Style – sets the appearance of a control› 0 – Standard : Text-Only› 1 – Graphical : Can contain a Picture or

Colored Background Enabled – sets whether a control can

interact with an event› Can be True or False

Visible – Hides or shows a button › Can be True or False

Common Command Button Event

Click - performs an action when the control is clicked

Syntax:Private Sub Command1_Click ()

StatementsEnd Sub

Label Properties

Alignment - Sets the alignment› 0-Left Justify: Align Left › 1-Right Justify: Align Right› 2-Center: Align Center

Auto Size – automatically resizes the label to fit the contents› Can be True or False

Back Style – indicates whether the background is transparent or opaque

Text Box Properties

Text – displays text on the text box Max Length – limits the number of

characters to be entered by the user Password Char – Sets the character

that would mask the characters entered by the user

Text Box Properties

Locked – sets whether the user can edit the text on a control› True: User can’t edit the text › False: User can edit the text

Tab Index – sets the order in which controls get the focus› Starts at zero