XL2000: Unexpected Results When You Use the SolverAdd Function (213215)



The information in this article applies to:

  • Microsoft Excel 2000

This article was previously published under Q213215

SYMPTOMS

In Microsoft Excel 2000, when you execute the SolverAdd function to programmatically add a constraint in your Solver model, the constraint is not added.

CAUSE

This problem may occur if you use R1C1 notation for the FormulaText argument of the SolverAdd function. In Microsoft Excel 2000, the FormulaText argument for SolverAdd will execute successfully only when specified in A1 notation.

NOTE: In versions of Microsoft Excel earlier than Excel 97, when you add a constraint to a problem with the Visual Basic function SolverAdd, you are required to specify the right side of the equation (the FormulaText argument) in R1C1 notation. If you do not specify the FormulaText argument in R1C1 notation, the constraint is not added. This was changed in Microsoft Excel 97, and now you must specify the FormulaText argument in A1 notation.

WORKAROUND

Microsoft provides programming examples for illustration only, without warranty either expressed or implied, including, but not limited to, the implied warranties of merchantability and/or fitness for a particular purpose. This article assumes that you are familiar with the programming language being demonstrated and the tools used to create and debug procedures. Microsoft support professionals can help explain the functionality of a particular procedure, but they will not modify these examples to provide added functionality or construct procedures to meet your specific needs. If you have limited programming experience, you may want to contact a Microsoft Certified Partner or the Microsoft fee-based consulting line at (800) 936-5200. For more information about Microsoft Certified Partners, please visit the following Microsoft Web site: For more information about the support options that are available and about how to contact Microsoft, visit the following Microsoft Web site: The following line will not add a constraint to a Solver model in Microsoft Excel 2000:
SolverAdd CellRef:=Range("$A$1"), Relation:=1, FormulaText:="R1C2"
				
To work around this problem, change the FormulaText argument to A1 notation, as in the following example:
SolverAdd CellRef:=Range("$A$1"), Relation:=1, FormulaText:="$B$1"
				

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Modification Type:MinorLast Reviewed:10/11/2006
Keywords:kbbug kbdtacode kbpending kbProgramming KB213215