ok, i am trying to invoke the solver from my VB code. The code works (solves) every time on MS Excel 2000 SP-1, and does not work on MS Excel 2000 SP-3. I have tried this on many different machines

I need to distribute my code to other Excel users, many of which are using Excel 2000 SP-3, so this is a big problem

ON SP3: I press "solve" and nothing happends, no error message. Has anyone else experienced this
Solverreset work
SolverOptions works (i checked, it actually changed the options in the solver
SolverAdd works (it adds the constraints
SolverOK does not work (SetCell and ByChange do NOT work, MinMaxVal and ValueOf work
SolverSolve does not work (makes sense, since SetCell and and ByChange are left blank in the solver

Any ideas

Here is the code

Private Sub SolveIt(

' SolveIt Macr
' Macro recorded 12/12/2003 by Tim Anderso

Application.ScreenUpdating = Fals
Count = Range("MatrixL").Coun
NumRows = Sqr(Count

'Reset the Solve
solvrese
SolvOptions MaxTime:=100, Iterations:=100, Precision:=0.000001, AssumeLinear
:=False, StepThru:=False, Estimates:=1, Derivatives:=1, SearchOption:=1,
IntTolerance:=5, Scaling:=True, Convergence:=0.0001, AssumeNonNeg:=Fals

'Insert new constraint
For i = 1 To NumRow
SolvAdd CellRef:=Range("MatrixLLT").Cells(i, i), Relation:=2, FormulaText:="1
Next

'Set objective function and decision variables, then solv
For j = 1 To
SolverOK SetCell:="Objective", MaxMinVal:=2, ValueOf:="0", ByChange:="DecVars
SolverSolve UserFinish = Fals
Next

SolverOK SetCell:="Objective", MaxMinVal:=2, ValueOf:="0", ByChange:="DecVars
SolverSolve UserFinish = Tru

End Su

Previously posted by Dana de Louis:-

For you reference, I am running Windows 2000, Excel 2000
SP-3

XL2000: The Solver Add-in May Not Work When You Start Solver by Using a
Macro

http://support.microsoft.com/default...30&Product=xlw

CAUSE
This problem may occur after you install Microsoft Office 2000 Service Pack
3 (SP-3).

HTH.

--
Dana DeLouis
Using Windows XP & Office XP
= = = = = = = = = = = = = = = = =


--
Regards
Ken....................... Microsoft MVP - Excel
Sys Spec - Win XP Pro / XL 00/02/03

----------------------------------------------------------------------------
It's easier to beg forgiveness than ask permission :-)
----------------------------------------------------------------------------



"Daniel E" wrote in message
...
ok, i am trying to invoke the solver from my VB code. The code works (solves)
every time on MS Excel 2000 SP-1, and does not work on MS Excel 2000 SP-3. I
have tried this on many different machines.

I need to distribute my code to other Excel users, many of which are using
Excel 2000 SP-3, so this is a big problem.

ON SP3: I press "solve" and nothing happends, no error message. Has anyone
else experienced this?
Solverreset works
SolverOptions works (i checked, it actually changed the options in the solver)
SolverAdd works (it adds the constraints)
SolverOK does not work (SetCell and ByChange do NOT work, MinMaxVal and
ValueOf work)
SolverSolve does not work (makes sense, since SetCell and and ByChange are
left blank in the solver)

Any ideas?

Here is the code:

Private Sub SolveIt()
'
' SolveIt Macro
' Macro recorded 12/12/2003 by Tim Anderson
'
Application.ScreenUpdating = False
Count = Range("MatrixL").Count
NumRows = Sqr(Count)

'Reset the Solver
solvreset
SolvOptions MaxTime:=100, Iterations:=100, Precision:=0.000001, AssumeLinear _
:=False, StepThru:=False, Estimates:=1, Derivatives:=1, SearchOption:=1, _
IntTolerance:=5, Scaling:=True, Convergence:=0.0001, AssumeNonNeg:=False

'Insert new constraints
For i = 1 To NumRows
SolvAdd CellRef:=Range("MatrixLLT").Cells(i, i), Relation:=2,
FormulaText:="1"
Next i

'Set objective function and decision variables, then solve
For j = 1 To 3
SolverOK SetCell:="Objective", MaxMinVal:=2, ValueOf:="0",
ByChange:="DecVars"
SolverSolve UserFinish = False
Next j

SolverOK SetCell:="Objective", MaxMinVal:=2, ValueOf:="0", ByChange:="DecVars"
SolverSolve UserFinish = True

End Sub



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