How to use the ISNULL Function (VBA)

Description

The Microsoft Excel ISNULL function returns TRUE if the expression is a null value. Otherwise, it returns FALSE.

Syntax

The syntax for the ISNULL function in Microsoft Excel is:

IsNull( expression )

Parameters or Arguments

expression

A variant that contains a string or numeric value.

Applies To

• Excel 2016, Excel 2013, Excel 2011 for Mac, Excel 20010, Excel 2003, Excel XP, Excel 2000

Type of Function

• VBA function (VBA)

Example (as VBA Function)

The ISNULL function can only be used in VBA code in Microsoft Excel.

Let's look at some Excel ISNULL function examples and explore how to use the ISNULL function in Excel VBA code:

IsNull(null)
Result: TRUE

IsNull("Tech on the Net")
Result: FALSE

For example:

Dim LValue As Boolean

LValue = IsNull("Tech on the Net")

In this example, the variable called LValue would contain FALSE as a value.