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Controls in Visual Basic


Controls in Visual Basic


In visual basic there are different controls which are used for designing forms or windows or GRAPHICAL USER INTERFACE (G U I ). Microsoft visual basic provides several standard interface controls that can be used to create user interface

Types of Control

1 Standard control

2 Activx control


Standard Control

 

Label

label control is used for display no-editable information.Mainly this control is used for providing information to user .

Frame

Frame control is used for grouping of the other control on the form .It Serves as a container for
other controls. Provides a
method for grouping
controls. (To group controls
in a frame, select the frame
with a single-click first,
then draw a control in it.)

Check-Box

Displays or enables input of
a two-part choice, such as
Yes/No or True/False.
example:-;' Visual Basic 6.0
Private Sub Check1_Click()
If Check1.Value = 1 Then
Check1.Caption = "Checked"
Else
Check1.Caption = "Unchecked"
End If
End Sub

ListBox

It displays a list of items
from which the user can
select one or more entries.
Properties of ListBox
1)Additem():- this method used to add item in the listbox.
2)Removeitem():-this method is used for removing item from list.

HscrollBar (HorizontalScroll bar)

IT Produces a numerical value
based on the scroll bar's
horizontal position.

Timer

IT Provides a means for an
action to be taken after
passage of a certain amount
of time.
example:-developing simple clock

''source code
Private Sub Timer1_Timer()
Label1.Caption = Time
End Sub
//end
Tips:-
1:-Drag one label on the form ,change its backstyle property to the transparent (0).
2:-Change backstyle property to the none(0) so close button will disapear .
3:-set timer interval to 200 millisecond .
4:-select layout out of aplication on window .
5:-make its .exe and add to startup menu it will start as you log-on to your computer.
scroll box.

Dir Listbox


Displays and enables a user to choose from available subdirectories on a drive.

shape

Displays geometric shapes on the form.
like circle,oval , rectangle etc

Image

Displays a graphic image Similar in appearance to the picture control but with
different functionality.

TextBox

Displays text that the use
can edit.

Enables the user to initiate a program action. Can
nclude an icon, caption,and ToolTips.