ISERROR Function (VisioShapeSheet)

Returns TRUE if the value of cellreference is any error type; otherwise, it returns FALSE. The ISERROR function is used in formulas that refer to another cell.

Syntax

ISERROR(cellreference )

Parameters

Name Required/Optional Data Type Description
cellreference
Required
String
Reference to a cell.

Example 1

Cell Formula Value returned
Scratch.A1
=NA( )
#N/A!
Scratch.B1
=ISERROR(Scratch.A1)
TRUE

Returns TRUE because the #N/A! error is recognized by the ISERROR function. You can use ISERR to find all types but the #N/A! error.

Example 2

Cell Formula Value returned
Scratch.X1
="House"
#VALUE!
Scratch.B1
=ISERROR(Scratch.X1)
TRUE

Returns TRUE because the #VALUE! error is recognized by the ISERROR function. To build an expression based on the #VALUE! error, use the ISERRVALUE function.