VBA CStr function

CStr Function Description

The CStr function converts any variable (number, boolean etc.) to a string variable. This functions achieves a similar result as adding the variable to an empty String (vbNullString).

  • VBA Reference – Conversion functions

    • Syntax

    The syntax for the CStr function in VBA is:

    CStr( expression )

    Parameters

    value
    An expression / variable that is to be converted to String data type.

    Other Notes

    The CStr function can be superseded by a simple string concatenation e.g.:

    Debug.Print CStr(21123)
'Result: "21123" (String)

'Is similar to:

Debug.Print ("" & 21123)
'Result: "21123" (String)

'Or even better:
Debug.Print (vbNullString & 21123)
'Result: "21123" (String)

    As you can read here it is recommended to use the vbNullString variable instead of an empty string ” “ for heavy VBA calculations.

    Example usage

    The CStr function can only be used in VBA code. Let’s look at some CStr function examples:

    Debug.Print CStr(12345)
'Result: "12345" (String)

Dim tmp as Long
tmp = 10
Debug.Print CStr( tmp )
'Result: "10" (String)