Name
CInt Function
Syntax
CInt(expression
)
-
expression
Use: Required
Data Subtype: Numeric or String
The range of expression is -32,768 to 32,767; fractions are rounded.
Return Value
expression
cast as a Variant with an
integer subtype.
Description
Converts expression
to a Variant with a
subtype of integer; any fractional portion of
expression
is rounded.
Rules at a Glance
expression
must evaluate to a numeric value; otherwise, a type mismatch error is generated.If the value of
expression
is outside the range of the Integer datatype, an overflow error is generated.When the fractional part of
expression
is exactly 0.5,CInt
always rounds to the nearest even number. For example, 0.5 rounds to 0, and 1.5 rounds to 2.
Example
<HTML> <HEAD> <SCRIPT LANGUAGE="VBScript"> Option Explicit Sub cmdAdd_OnClick( ) Dim iSum, sNum1, sNum2 sNum1 = Window.Document.frmAdd.txtText1.Value sNum2 = Window.Document.frmAdd.txtText2.Value If IsNumeric(sNum1) And IsNumeric(sNum2) Then iSum = CInt(sNum1) + CInt(sNum2) Alert "The sum is: " & iSum Else Alert "The values you enter in the text boxes must be numeric." End If End Sub </SCRIPT> </HEAD> <BODY> <FORM NAME="frmAdd"> <INPUT TYPE="text" NAME="txtText1"><BR> <INPUT TYPE="text" NAME="txtText2"><BR> <INPUT TYPE="button" NAME="cmdAdd" VALUE="Sum"> </FORM> </BODY> </HTML>
Programming Tips & Gotchas
Use
IsNumeric
to test whetherexpression
evaluates to a number before performing the conversion.CInt
differs from theFix
andInt
functions, which truncate, rather than round, ...
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