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Convert Expression to Single-Precision Method

The Convert Expression to Single-Precision method converts the value that the expression argument contains to a single-precision, floating-point number. It returns this number. Note the following:

• After rounding, the result must reside in the range that the single-precision data type allows. If it is not, then an error occurs.
• A string that cannot convert to a single-precision number causes a Type Mismatch error.

For more information, see Numeric Data Types That Siebel VB Uses.

Format

CSng(expression)

For information about the arguments that you can use with this method, see Argument That You Can Use with Conversion Methods.

Example

The following example calculates the factorial of a number. For more information, see About the Factorial:

Sub Button_Click
   Dim number as Integer
   Dim factorial as Double
   Dim msgtext As String
   number = 25
   If number <= 0 then
      Exit Sub
   End If

   factorial = 1
   For x = number to 2 step -1
      factorial = factorial * x
   Next x
      'If number  <= 35, then its factorial is small enough to
      ' be stored as a single-precision number
   If number< 35 then
      factorial = CSng(factorial)
   End If
   msgtext = "The factorial of " & number & " is " & factorial
End Sub