What is a Dialog Box ?
VBScript allows the developers to interact with the user effectively.
It can be a message box to display a message to a user or an input box
with which user can enter the values.
VBScript MsgBox Function
The MsgBox function displays a message box and waits for the user to
click a button and then an action is performed based on the button
clicked by the user.
Syntax
MsgBox(prompt[,buttons][,title][,helpfile,context])
Parameter Description
- Prompt - A Required Parameter. A String that is displayed as a
message in the dialog box. The maximum length of prompt is approximately
1024 characters. If the message extends to more than a line, then we
can separate the lines using a carriage return character (Chr(13)) or a
linefeed character (Chr(10)) between each line.
- buttons - An Optional Parameter. A Numeric expression that
specifies the type of buttons to display, the icon style to use, the
identity of the default button, and the modality of the message box. If
left blank, the default value for buttons is 0.
- Title - An Optional Parameter. A String expression displayed in
the title bar of the dialog box. If the title is left blank, the
application name is placed in the title bar.
- helpfile - An Optional Parameter. A String expression that
identifies the Help file to use to provide context-sensitive help for
the dialog box.
- context - An Optional Parameter. A Numeric expression that
identifies the Help context number assigned by the Help author to the
appropriate Help topic. If context is provided, helpfile must also be
provided.
The
Buttonsparameter can take any of the following values:
- 0 vbOKOnly Displays OK button only.
- 1 vbOKCancel Displays OK and Cancel buttons.
- 2 vbAbortRetryIgnore Displays Abort, Retry, and Ignore buttons.
- 3 vbYesNoCancel Displays Yes, No, and Cancel buttons.
- 4 vbYesNo Displays Yes and No buttons.
- 5 vbRetryCancel Displays Retry and Cancel buttons.
- 16 vbCritical Displays Critical Message icon.
- 32 vbQuestion Displays Warning Query icon.
- 48 vbExclamation Displays Warning Message icon.
- 64 vbInformation Displays Information Message icon.
- 0 vbDefaultButton1 First button is default.
- 256 vbDefaultButton2 Second button is default.
- 512 vbDefaultButton3 Third button is default.
- 768 vbDefaultButton4 Fourth button is default.
- 0 vbApplicationModal Application modal. The current application will not work until the user responds to the message box.
- 4096 vbSystemModal System modal. All applications will not work until the user responds to the message box.
The above values are logically divided into four groups: The first
group(0 to 5) indicates the buttons to be displayed in the message box.
The second group (16, 32, 48, 64) describes the sytle of the icon to be
displayed, the third group (0, 256, 512, 768) indicates which button
must be the default, and the fourth group (0, 4096) determines the
modality of the message box.
Return Values
The MsgBox function can return one of the following values:
- 1 - vbOK - OK was clicked
- 2 - vbCancel - Cancel was clicked
- 3 - vbAbort - Abort was clicked
- 4 - vbRetry - Retry was clicked
- 5 - vbIgnore - Ignore was clicked
- 6 - vbYes - Yes was clicked
- 7 - vbNo - No was clicked
Example
<!DOCTYPE html>
<html>
<body>
<script language="vbscript" type="text/vbscript">
'Message Box with just prompt message
MsgBox("Welcome")
'Message Box with title, yes no and cancel Butttons
a = MsgBox("Do you like blue color?",3,"Choose options")
' Assume that you press No Button
document.write("The Value of a is " & a)
</script>
</body>
</html>
When the above script is executed, the message box is displayed, and if you press No Button, then the value of a is 7.
The Value of a is 7
VBScript InputBox Function
The InputBox function helps the user to get the values from the user.
After entering the values, if the user clicks the OK button or presses
ENTER on the keyboard, the InputBox function will return the text in the
text box. If the user clicks on the Cancel button, the function will
return an empty string ("").
Syntax
InputBox(prompt[,title][,default][,xpos][,ypos][,helpfile,context])
Parameter Description
- Prompt - A Required Parameter. A String that is displayed as a
message in the dialog box. The maximum length of prompt is approximately
1024 characters. If the message extends to more than a line, then we
can separate the lines using a carriage return character (Chr(13)) or a
linefeed character (Chr(10)) between each line.
- Title - An Optional Parameter. A String expression displayed in
the title bar of the dialog box. If the title is left blank, the
application name is placed in the title bar.
- Default - An Optional Parameter. A default text in the text box that the user would like to be displayed.
- XPos - An Optional Parameter. The Position of X axis which
represents the prompt distance from left side of the screen
horizontally. If left blank, the input box is horizontally centered.
- YPos - An Optional Parameter. The Position of Y axis which
represents the prompt distance from left side of the screen Vertically.
If left blank, the input box is Vertically centered.
- helpfile - An Optional Parameter. A String expression that
identifies the Help file to use to provide context-sensitive Help for
the dialog box.
- context - An Optional Parameter. A Numeric expression that
identifies the Help context number assigned by the Help author to the
appropriate Help topic. If context is provided, helpfile must also be
provided.
Example
<!DOCTYPE html>
<html>
<body>
<script language="vbscript" type="text/vbscript">
' Input Box with only Prompt
InputBox("Enter a number")
' Input Box with a Title
a=InputBox("Enter a Number","Enter Value")
msgbox a
' Input Box with a Prompt,Title and Default value
a=InputBox("Enter a Number","Enter Value",123)
msgbox a
' Input Box with a Prompt,Title,Default and XPos
a=InputBox("Enter your name","Enter Value",123,700)
msgbox a
' Input Box with a Prompt,Title and Default and YPos
a=InputBox("Enter your name","Enter Value",123,,500)
msgbox a
</script>
</body>
</html>
When the above script is executed, the input box is displayed and displays the entered value by the user.
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