VBScript CStr function

May 13, 2021 VBScript

The VBScript CStr function is used to return an expression that has been converted to a Variant of the String sub-type.

The CStr function converts the expression to a string type.

CStr(expression)

parameter	describe
expression	Required.Any effective expression. If the expression is: The Boolean - The CSTR function will return a string in which True or False is included. The DATE - CSTR function will return a string that contains the date of the short date format. NULL - Run-Time error will occur. The EMPTY - CSTR function will return an empty string (""). The ERROR - the CSTR function will return a string that contains the word "error" and the error number. The Other Numeric - The CSTR function will return a string that contains numbers.

parameter

describe

expression

Required.Any effective expression.

If the expression is:

The Boolean - The CSTR function will return a string in which True or False is included.
The DATE - CSTR function will return a string that contains the date of the short date format.
NULL - Run-Time error will occur.
The EMPTY - CSTR function will return an empty string ("").
The ERROR - the CSTR function will return a string that contains the word "error" and the error number.
The Other Numeric - The CSTR function will return a string that contains numbers.

The above example output results:

300000
10/5/2025