Writing Excel Macros with VBA, 2nd Edition

Name

Error Object

Synopsis

Path: Application  --  Range  --  Errors - Error
               

Object	Properties
Error	Ignore( ) As Boolean Value( ) As Boolean

Error objects determine whether or not a particular type of error has occurred in a specified range.

In particular, the Errors property of the Range object returns an Errors collection. This collection always contains exactly seven Error objects, corresponding to the seven types of available error-checking options, as shown in the Error Checking tab of the Options dialog box (see the ErrorCheckingOptions entry).

The Error object has a Boolean, read-only Value property that is set to True by Excel if there is an error of the type corresponding to the Error object within the given range.

It is important to note that, in order for the Error object’s Value property to function correctly, the error-checking option must be enabled, either programmatically or through the Error Checking tab.

To illustrate, the following code first turns on global empty cell error checking. Then in cell A1, it places a formula that references one or more empty cells. Finally, the code checks to see if there is an empty cell reference error within the range denoted by rng.

Sub Example_ErrorObject( ) Dim rng As Range Set rng = Application.Range("A1") ' Make sure empty cell error checking is on globally Application.ErrorCheckingOptions.EmptyCellReferences = True ' Insert formula referencing empty cells ' in a cell within the range rng Range("A1").Formula = "=A12+A13" ' ...